11 31 051 Replacing the timing chain (N14)

PRELIMINARY WORK:

Disconnect the battery earth lead
NOTE: For more information see: DISCONNECTING AND CONNECTING BATTERY EARTH LEAD

NOTE: Risk of damage! Do not under any circumstances use force to pull off negative terminal.
- Open cover (1).
  
  Fig 1: Identifying Cover
  Courtesy of BMW OF NORTH AMERICA, INC.
- Version without intelligent battery sensor (IBS):
- Slacken nut (1).
- Disconnect battery earth lead (2) and secure at side.
  
  Fig 2: Identifying Battery Earth Lead And Nut
  Courtesy of BMW OF NORTH AMERICA, INC.
- Version with intelligent battery sensor (IBS):
- Slacken nut (1).
- Disconnect battery earth lead (2) and secure at side.
Fig 3: Identifying Battery Earth Lead And Nut
Courtesy of BMW OF NORTH AMERICA, INC.
Removing number plate baseplate
NOTE: Only use the vehicle-specific number plate baseplate.
- Loosen screws (1).
- Remove number plate baseplate (2).
Fig 4: Identifying Number Plate Baseplate And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the trim on radiator grille
- Press down the latch mechanism (1) from inside behind trim (2).
Unclip cover (2) towards front.

Fig 5: Removing Radiator Grille Trim
Courtesy of BMW OF NORTH AMERICA, INC.
Removing center trim
NOTE: Risk of damage! Paint damage on bumper panel Tape off bumper in working area with adhesive tape.
- Remove trim (2) at latch mechanisms (1) in lower area using special tool 0 496 569 (00 9 325) .
- Pull trim (2) below slightly towards front.
  Release top latch mechanisms (1) by hand.
- Remove cover (2).
Fig 6: Identifying Trim And Latch Mechanisms
Courtesy of BMW OF NORTH AMERICA, INC.
Removing left and right bumper panel
NOTE: Description is for left component only. Procedure on the right side is identical.
- Unclip cover (1) with special tool 0 490 539 (00 9 322) .
Fig 7: Unclipping Trim With Special Tool 00 9 322
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the trim from wheel arch on front left and right
NOTE: Description is for left component only. Procedure on the right side is identical.
- If necessary, release clip on front wheel arch cover (1).
- Bend wheel arch panel (1) inwards slightly and release clip (2).
Fig 8: Identifying Wheel Arch Panel And Clip
Courtesy of BMW OF NORTH AMERICA, INC.
- Feed cover (1) in area (A) towards front out of bumper.
- Release cover (1) from clips (2); if necessary, disconnect associated plug connection and remove.
  
  Fig 9: Releasing Cover From Clips
  Courtesy of BMW OF NORTH AMERICA, INC.
Removing both headlights
WARNING:
Danger to life due to high voltage!
Version with xenon headlights: Contact with live parts may cause electric shock.
- So disconnect all components from the voltage supply before removing them (lighting system and ignition off). Work on the complete xenon lighting system (ignition device, control unit and bulb) may only be carried out by qualified personnel.
RISK OF DAMAGE

Electrostatic discharge.

Damage to or destruction of electrical components.
- For more information see: NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .
NOTE: Description is for left component only. Procedure on the right side is identical.
- Loosen screws (1).
- Disconnect the plug connection (2).
- Version with headlight cleaning system:
- Pull the headlight forwards slightly and disconnect the hose connection (3) from the high-pressure nozzle (4).
- Remove the headlight.
Fig 10: Identifying High Pressure Nozzle, Hose Connection, Plug Connection, And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Moving front panel into service position
- Release clips (1) on left and right.
  
  Fig 11: Identifying Front Panel Clips
  Courtesy of BMW OF NORTH AMERICA, INC.
- Release cable clip (1).
- Disconnect plug connections (2) on air conditioning compressor.
- Loosen screws (3).
  
  Fig 12: Identifying A/C Compressor Plug Connections, Cable Clip, And Screws
  Courtesy of BMW OF NORTH AMERICA, INC.
- Loosen screws (2).
- Version with headlight cleaning system:
- Release plug connection (1) on the windscreen washer pump.
  
  Fig 13: Identifying Windscreen Washer Pump Plug Connection And Screws
  Courtesy of BMW OF NORTH AMERICA, INC.
- Release screw (1) on side panel on left and right.
  
  Fig 14: Identifying Screw On Side Panel
  Courtesy of BMW OF NORTH AMERICA, INC.
- Version with air conditioning:
- Unclip refrigerant line (1) from holder (2).
  
  Fig 15: Identifying Refrigerant Line And Holder
  Courtesy of BMW OF NORTH AMERICA, INC.
- Loosen screw (1).
- Place expansion tank (2) aside.
- Release the gaiter (3) from the lock carrier (4).
  
  Fig 16: Identifying Expansion Tank, Gaiter, Lock Carrier And Screw
  Courtesy of BMW OF NORTH AMERICA, INC.
- Open clutch (1).
- Detach Bowden cable (2).
- Release screws (3 and 4).
  
  Fig 17: Identifying Clutch, Bowden Cable And Screws
  Courtesy of BMW OF NORTH AMERICA, INC.
- Disconnect plug connection (1).
- Release screws (4 and 5).
- MINI Cooper S only:
- Release clamp (2).
- Detach air duct (3).
  
  Fig 18: Identifying Plug Connection, Clamp, Air Duct, And Screws
  Courtesy of BMW OF NORTH AMERICA, INC.
- Insert special tool 0 495 894 (00 2 271) into the sleeve (1) on the left and right.
- If applicable, turn the special tool 0 495 894 (00 2 271) until the screw can be inserted and tighten.
  NOTE: Special tool (00 2 271) may only be removed when front panel has been mounted.
- Unscrew nuts (2).
  
  Fig 19: Identifying Special Tool (00 2 271), Sleeve, And Nuts
  Courtesy of BMW OF NORTH AMERICA, INC.
- Pull front panel (1) approx. 10 cm forwards.
- Pay attention to other cable clips.
- Insert special tool 0 495 895 (00 2 272) on the left and right and secure with screws (2).
Fig 20: Identifying Front Panel, Special Tool, And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Attaching engine to workshop crane
- Suspend engine with workshop crane (1) from lifting eye (2).
Fig 21: Identifying Engine Crane And Lifting Eye
Courtesy of BMW OF NORTH AMERICA, INC.
Removing engine mounting bracket
- Release nut (1) and remove ground strap.
- Loosen screws (2).
- Unscrew nut (3).
- Remove engine mounting bracket.
Fig 22: Identifying Engine Mounting Bracket Nuts And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the right engine mount
- Loosen screws (1).
- Remove engine mount.
Fig 23: Identifying Right Engine Mount Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Removing top screw connection on alternator
- Release screw and remove holder (1).
- Lay holder (1) to one side.
  
  Fig 24: Identifying Holder And Screw
  Courtesy of BMW OF NORTH AMERICA, INC.
- Use the spanner (2) to bring the belt tensioner (1) into the service position and hold.
- Secure installation position of belt tensioner (1) by sliding locating pin (3) in direction of arrow.
  WARNING:
  Danger of injury!
  Unintentional activation of belt tensioner
  - Remove spanner (2) again from the belt tensioner (1).
  - Remove drive belt (4) from alternator.
  Fig 25: Removing Drive Belt From Alternator
  Courtesy of BMW OF NORTH AMERICA, INC.
- Unlock connector and remove.
- Release nut (1) and remove positive battery cable.
- Loosen screws (2) and remove the belt tensioner (3).
Fig 26: Identifying Belt Tensioner Nut, Screws And Plug Connection
Courtesy of BMW OF NORTH AMERICA, INC.
Installing the special tool to secure engine
NOTE: Do not remove alternator
- Secure special tool 0 496 016 (11 9 630) with standard bolts (1 and 2).
Fig 27: Securing Special Tool (11 9 630) With Standard Bolts
Courtesy of BMW OF NORTH AMERICA, INC.
Detaching engine from workshop crane
- Release workshop crane (1) from lifting eye (2) and remove.
Fig 28: Identifying Engine Crane And Lifting Eye
Courtesy of BMW OF NORTH AMERICA, INC.
Removing ignition coils (N14)
Prerequisite

Switch off ignition.
- Unlock connector latch mechanism (1) of ignition coil (2) and pull off connector.
  NOTE: There is a possibility that the silicone tube will tear and therefore be destroyed. This procedure is applicable to all ignition coils.
- Pull out the ignition coil (2) slowly in a smooth upwards movement.
Fig 29: Releasing Connector Latch Mechanism
Courtesy of BMW OF NORTH AMERICA, INC.
Removing hot film air mass meter
- Disconnect plug connection (1).
- Release clamp (2).
- Loosen screws (3).
- Pull the gaiter off the hot film air mass meter.
- Remove hot film air mass meter (4) in direction of arrow.
Fig 30: Removing Hot Film Air Mass Meter
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the intake silencer housing (N14)
- Loosen screw.
  
  Fig 31: Locating Intake Silencer Housing Screw
  Courtesy of BMW OF NORTH AMERICA, INC.
- Loosen the clamp and detach the gaiter (1) from the intake silencer housing (3).
- Slightly push in intake pipe (2) at the latch mechanism and pull off the intake silencer housing (3).
- Remove the intake silencer housing (3) together with the intake pipe.
- On vehicles with hot film air mass meter, disconnect plug connection.
Fig 32: Identifying Intake Silencer Housing, Intake Pipe And Gaiter
Courtesy of BMW OF NORTH AMERICA, INC.
Removing cylinder head cover (N14)
- Release clamps (1 and 2).
- Unlock connector (3) and remove.
- Unlock and detach vacuum line (4).
- Push the lock (5) of the vent hose together on the side (see illustration) and pull off toward the top.
- Pull the vent hose off the cylinder head cover in the direction of the arrow.
  
  Fig 33: Identifying Vacuum Line, Connectors, Gaiter, Lock, And Clamps
  Courtesy of BMW OF NORTH AMERICA, INC.
- Unclip engine wiring harness with bracket (1).
  
  Fig 34: Identifying Engine Wiring Harness Brackets
  Courtesy of BMW OF NORTH AMERICA, INC.
- Release oxygen sensors on cylinder head (1).
  
  Fig 35: Identifying Oxygen Sensors On Cylinder Head
  Courtesy of BMW OF NORTH AMERICA, INC.
- Detach ground cable at screw connection (2).
- Undo cylinder head cover bolts in the sequence 13 to 1.
Fig 36: Valve Cover Bolts Tightening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.
Clean spark plug shaft with compressed air
WARNING:
Danger of injury!
Oil and dirt particles may get into your eyes when cleaning spark plug shafts with compressed air!
- Wear safety goggles.
NOTE: Deposits that are not removed according to instructions may enter the combustion chamber and lead to uncontrolled combustion. Remaining deposits in the area of the spark plug seal can lead to leaks and to the spark plugs coming loose during engine operation.
- Remove dirt contamination from the spark plug shaft. The plug shaft must be cleaned with compressed air after the ignition coils have been removed but before the spark plugs have been dismounted. After removing the spark plugs, check the sealing surface again for dirt contamination and if necessary, clean with a damp cloth or again with compressed air.
NOTE: If these instructions are not followed, especially with regard to greasing, this may result in mechanical damage to the spark plug housing/thread. Spark plugs that are not tightened sufficiently lead to leaks and to the spark plugs coming loose during engine operation.
- Do not grease/oil thread or use any graphite or copper grease. Adhere to the torque values of the packaging information or instruction.
Removing all spark plugs
NOTE: Flexible ratchet extensions must always be used. If rigid mounting tools are used, there is a risk of insulator breakages.
Also, do not use a variable plug connection with locking capability as this also poses a risk of insulator breakage.
- Unscrew spark plugs with special tool 0 495 560 (12 1 220) and an extension with joint.
Fig 37: Identifying Special Tool (12 1 220)
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the right front wheel
NOTE: Attention! The wheel is balanced electronically. When fitting all four wheels (e.g. when changing from summer to winter wheels), check the tire pressure. To avoid tire damage, advise the customer to check the tire pressures on a regular basis, referring to vehicle owner's manual.

NOTE: Follow instructions on initialization of the Run Flat Indicator (RPA).

NOTE: Be sure to observe the following procedure to prevent clamping errors and imbalance.
- Loosen the wheel studs.
- The wheel is positioned such that the valve is pointing to the bottom.
- If several wheels are removed simultaneously, mark each tire with a piece of chalk to show the axle and side on which the corresponding wheel is fitted.
- Mark the alignment of the wheel with respect to the wheel hub.
- Mark the position of the lockable wheel bolt.
- Loosen the wheel bolts and remove the wheel.
Fig 38: Identifying Wheel
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the front right wheel arch cover
- Release screw rivets (1 and 2).
- Unscrew nut (3).
- Unfasten screws (4).
- Feed out wheel arch cover (5).
Fig 39: Identifying Wheel Arch Cover, Rivets, Nut And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Removing friction wheel
NOTE: Picture shows friction wheel removed.
- Pull out friction wheel with mechanical unlocking (3) in direction of arrow and lock on locking hook.
- Friction wheel (1) lifts mechanically from belt drive.
- Disconnect plug connection (2) on friction wheel.
  
  Fig 40: Pulling Out Friction Gear
  Courtesy of BMW OF NORTH AMERICA, INC.
- Move friction wheel (2) into service position with maximum 50 N.
- To secure friction wheel in service position, suspend tensioning strap (1) on housing (2).
  
  Fig 41: Locating Tensioning Strap
  Courtesy of BMW OF NORTH AMERICA, INC.
- Secure belt pulley of coolant pump with an oil filter strap (1).
- Undo bolts (2) with special tool 0 495 933 (11 9 581) and 0 495 935 (11 9 583) .
  
  Fig 42: Identifying Oil Filter Band And Bolts
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  NOTE: Drive belt does not have to be removed.
- Undo bolts (1) with special tool 0 495 933 (11 9 581) and 0 495 935 (11 9 583) .
  
  Fig 43: Releasing Bolts Using Special Tools
  Courtesy of BMW OF NORTH AMERICA, INC.
- Remove friction wheel (1) towards bottom.
- Disconnect the plug connection (2).
Fig 44: Identifying Friction Gear And Plug Connection
Courtesy of BMW OF NORTH AMERICA, INC.
Removing the vibration damper
- Loosen screws (1).
- Remove vibration absorber.
Fig 45: Identifying Vibration Damper Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Removing intake adjuster
NOTE: Attention! The timing is not determined at firing TDC of cylinder no. 1. Set a modified procedure for timing. All pistons are in the 90° position. Check locking of adjusters.

NOTE: Attention! Check lock on VANOS unit. Attempt to rotate intake camshaft in direction of rotation at hexagon head. The intake adjuster is locked in the initial setting when the camshaft is non-positively connected to the intake adjuster. If no fixed connection to the camshaft can be established, the adjuster is faulty and must be replaced.
- Mount special tool 0 495 926 (11 9 550) to open the central bolts on the intake adjuster and the camshaft.
- Rotate engine at central bolt in direction of rotation until designations (IN and EX) can be read from above.
  
  Fig 46: Identifying Intake And Exhaust Camshafts
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  NOTE: The TDC bore can be mixed up in automatic transmissions.
- Insert special tool 0 495 939 (11 9 590) .
- Rotate flywheel (1) about the central bolt until the TDC firing position of cylinder no. 1 is reached.
  
  Fig 47: Securing Crankshaft Using Special Tool (11 9 590)
  Courtesy of BMW OF NORTH AMERICA, INC.
- Release hose clamps (1) and detach charge air hose (2).
  
  Fig 48: Identifying Charge Air Hose And Clamps
  Courtesy of BMW OF NORTH AMERICA, INC.
- Collect escaping engine oil. A small quantity of engine oil will escape after the screw connection has been released. Make sure no oil runs onto the belt drive.
- Release chain tensioner (1).
  
  Fig 49: Identifying Chain Tensioner
  Courtesy of BMW OF NORTH AMERICA, INC.
- Check the lock of the intake adjuster before positioning the special tool. The camshaft must be securely connected to the adjuster.
- Position special tool 0 495 936 (11 9 551) on exhaust camshaft and secure with special tool 0 495 937 (11 9 552) .
- Position special tool 0 495 936 (11 9 551) on intake camshaft and secure with both screws.
  
  Fig 50: Positioning Special Tools On Camshafts
  Courtesy of BMW OF NORTH AMERICA, INC.
- Loosen screws (2).
- Remove slide rail (1).
  
  Fig 51: Identifying Tensioning Rail And Screws
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  NOTE: VANOS unit of intake camshaft is marked with the letters IN.
  - Release central bolt (3).
  - Remove VANOS unit (1) from timing chain (2).
  Fig 52: Identifying Camshaft Central Bolt
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  MAIN WORK:
Removing timing chain
- Loosen screw (1).
  
  Fig 53: Identifying Screw
  Courtesy of BMW OF NORTH AMERICA, INC.
- Release central bolt (3).
- Feed out camshaft sprocket (2) from timing chain (1) towards front.
  
  Fig 54: Identifying Camshaft Central Bolt
  Courtesy of BMW OF NORTH AMERICA, INC.
- Do not remove special tool 0 495 926 (11 9 550) .
  
  Fig 55: Positioning Special Tools On Camshafts
  Courtesy of BMW OF NORTH AMERICA, INC.
- A second person is needed for bracing when releasing the central bolt.
- Fit special tool 0 493 940 (11 9 280) on hub for vibration absorber with screws.
- Release central bolt with tool (1) in direction of arrow.
  
  Fig 56: Releasing Central Bolt Using Special Tool
  Courtesy of BMW OF NORTH AMERICA, INC.
- Remove oil dipstick (1).
  
  Fig 57: Identifying Oil Dipstick
  Courtesy of BMW OF NORTH AMERICA, INC.
- Release bearing journals (1 and 2) of chain module.
  
  Fig 58: Identifying Bearing Journals Of Chain Module
  Courtesy of BMW OF NORTH AMERICA, INC.
- Remove hub (1) towards front.
  
  Fig 59: Removing Hub Towards Front
  Courtesy of BMW OF NORTH AMERICA, INC.
- Camshaft sprocket (1) of timing chain.
  
  Fig 60: Identifying Timing Chain Camshaft Sprocket
  Courtesy of BMW OF NORTH AMERICA, INC.
- Remove chain module (2) with timing chain (1) by pulling upwards.
  
  Fig 61: Removing Chain Module With Timing Chain
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  NOTE: Camshaft sprocket must not slip off of crankshaft.
- Check that camshaft sprocket (1) of oil pump is fitted correctly.
  
  Fig 62: Identifying Oil Pump Camshaft Sprocket
  Courtesy of BMW OF NORTH AMERICA, INC.

Installing timing chain

Secure chain module (1) with rubber part (3) to facilitate assembly.
Pull timing chain (2) upwards until camshaft sprocket (4) rests against chain guide (1).
Install timing chain (2) and camshaft sprocket (4) in this position.

Fig 63: Identifying Chain Module, Timing Chain, Rubber Part And Sprocket
Courtesy of BMW OF NORTH AMERICA, INC.
Check for the correct installation position of chain module (1), camshaft sprocket (2) and timing chain (3).

Fig 64: Identifying Chain Module, Camshaft Sprocket And Timing Chain
Courtesy of BMW OF NORTH AMERICA, INC.
Check installation position of both camshaft sprockets:
Camshaft sprocket (1) of oil pump, guide rail (2) of timing chain, hub (3) on crankshaft, camshaft sprocket (4) of timing chain are present as shown.

Fig 65: Identifying Oil Pump Camshaft Sprocket, Timing Chain Guide Rail, Crankshaft Hub And Camshaft Sprocket
Courtesy of BMW OF NORTH AMERICA, INC.
Attach oil-pump camshaft sprocket (2) in direction of arrow to crankshaft (1).
Insert chain module with timing chain.

Fig 66: Checking Oil Pump Sprocket
Courtesy of BMW OF NORTH AMERICA, INC.

Secure with bearing journals (1 and 2) of chain module.

BEARING JOURNALS BOLT SPECIFICATION

Bearing journal
M8x1.25	Replace O-ring	24 Nm

Fig 67: Identifying Bearing Journals Of Chain Module

Courtesy of BMW OF NORTH AMERICA, INC.

Attach crankshaft hub (1).

Fig 68: Attaching Crankshaft Hub
Courtesy of BMW OF NORTH AMERICA, INC.
Install central bolt.

Secure central bolt with special tool 0 490 504 (00 9 120) .

TORSION DAMPER HUB BOLT SPECIFICATION

Torsion damper (hub) to crankshaft
M14 x1.5 x74	12.9	Tightening torque	50 Nm
		Angle of rotation	180 °

Remove special tool 0 493 940 (11 9 280) from hub.

Fig 69: Securing Central Bolt With Special Tool (00 9 120)
Courtesy of BMW OF NORTH AMERICA, INC.
Insert oil dipstick (1).

Fig 70: Identifying Oil Dipstick
Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw (1) and tighten.

TIMING CASE UPPER SECTION SCREW PLUG SPECIFICATION

Screw plug, timing case upper section
M22x1.5	Replace sealing ring	35 Nm

Fig 71: Identifying Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Install exhaust camshaft sprocket (2) with mounted timing chain (1).
Position the screw (3) and tighten by hand.

Fig 72: Identifying Camshaft Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

POST-PROCESSES:

Installing the intake adjuster

NOTE: VANOS unit of intake camshaft is marked with the letters IN.

NOTE: The installation position of the VANOS unit can be freely selected.

Install VANOS unit (1).
Fit timing chain (2).
Place central bolt (3) in position and hand-tighten.

Fig 73: Identifying Camshaft Central Bolt
Courtesy of BMW OF NORTH AMERICA, INC.
Mount slide rail (1).

Insert bolts (2).

SLIDE RAIL BOLTS SPECIFICATION

Slide rail to crankcase
M6	8 Nm

Fig 74: Identifying Tensioning Rail And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 0 493 971 (11 9 340) into the cylinder head.

Pretension timing chain with special tool 0 496 778 (00 9 460) .

PRELOAD TIMING CHAIN SCREW SPECIFICATION

Preload timing chain
	0, 6 Nm

Fig 75: Identifying Special Tool (11 9 340)

Courtesy of BMW OF NORTH AMERICA, INC.

Secure central bolt (1) with special tool 0 490 504 (00 9 120) .

VANOS BOLT SPECIFICATION

VANOS (variable camshaft timing control) to intake camshaft
M10x52	Renew screw	Jointing torque	20 Nm
		Angle of rotation	180 °

Fig 76: Securing Intake Camshaft Central Bolt Using Special Tool (00 9 120)

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten screw (3).

CAMSHAFT SPROCKET SCREW SPECIFICATION

Camshaft sprocket to exhaust camshaft
M10x30	Tightening torque	20 Nm
	Angle of rotation	90 °

Fig 77: Identifying Camshaft Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Checking camshaft timing (N14)

NOTE: Modified procedure for timing. The timing is not determined at firing TDC of cylinder no. 1. All pistons are in the 90° position. Check locking of adjuster. Observe direction of rotation (direction of rotation clockwise when viewed towards timing drive side).

NOTE: Reverse rotation of the engine is not permitted, test adjustment values will be distorted.

NOTE: Check locking on VANOS unit. Turn camshaft in direction of rotation at hexagon head. The intake adjuster is locked in the initial setting when the camshaft is non-positively connected to the intake adjuster. If no fixed connection to the camshaft is established, the adjuster is faulty and must be replaced.

NOTE: Maximum force 10 to 15 Nm. If play of VANOS unit is below 10 degrees, the adjuster is OK.

"To check the lock of VANOS unit: twist intake camshaft in direction of arrow using a open-end spanner (1)."
If play of VANOS unit is above 10 degrees, the VANOS unit is not OK.

Fig 78: Turning Intake Camshaft Using Open-End Spanner
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Illustration shows N12
Both camshafts are in the correct installation position when the designation (IN) for intake camshaft points upwards.
In the case of the exhaust camshaft, the designation (EX) must point upwards.

Fig 79: Identifying Intake And Exhaust Camshafts
Courtesy of BMW OF NORTH AMERICA, INC.
Position of intake camshaft (1) points at an angle to the right and upwards.

Fig 80: Positioning Of Intake Camshaft
Courtesy of BMW OF NORTH AMERICA, INC.
Position of exhaust camshaft (1) points at an angle to the right and downwards.

Fig 81: Positioning Of Exhaust Camshaft
Courtesy of BMW OF NORTH AMERICA, INC.
Screw special tool 0 493 971 (11 9 340) into the cylinder head.

Pretension timing chain with special tool 0 496 778 (00 9 460) .

PRELOAD TIMING CHAIN SCREW SPECIFICATION

Preload timing chain
	0, 6 Nm

Fig 82: Identifying Special Tool (11 9 340)

Courtesy of BMW OF NORTH AMERICA, INC.

Special tool: 0 495 936 (11 9 551) remove.
Special tool: 0 495 937 (11 9 552) Remove.

Fig 83: Positioning Special Tools On Camshafts
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Risk of mixing up (similar parts) of the dowel hole . Balance hole and dowel hole may be mixed up; all pistons must be in the 90° position. If necessary, determine by means of spark plug bore.
Further twist the crankshaft about the central bolt by 720 degrees.
Position crankshaft with special tool 0 495 939 (11 9 590) .
NOTE: Observe direction of rotation (direction of rotation always clockwise when viewed towards timing drive side).

Fig 84: Securing Crankshaft Using Special Tool (11 9 590)
Courtesy of BMW OF NORTH AMERICA, INC.
Reverse rotation of the engine is not permitted, test adjustment values will be distorted.

Check the preload of the timing chain again. Retighten special tool 0 493 971 (11 9 340) .

PRELOAD TIMING CHAIN SPECIFICATION

Preload timing chain
0, 6 Nm

Fig 85: Identifying Special Tool (11 9 340)

Courtesy of BMW OF NORTH AMERICA, INC.

Loosely place (position) special exhaust tool 0 495 936 (11 9 551) on mounting flats of exhaust camshaft.

Check air gap using a feeler gauge (1).

EXHAUST CAMSHAFT SPECIFICATION

Measured value on exhaust camshaft
If the measured value is below 1.9 mm, the timing is OK	max. 1, 9 mm

Fig 86: Positioning Special Exhaust Tool (11 9 551) On Exhaust Camshaft Mounting Flats

Courtesy of BMW OF NORTH AMERICA, INC.

Loosely place (position) special intake tool 0 495 936 (11 9 551) on mounting flats of intake camshaft.

Check air gap using a feeler gauge (1).

INTAKE CAMSHAFT SPECIFICATION

If the measured value is below 2.5 mm, the timing is OK
max. 2, 5 mm

Fig 87: Positioning Special Intake Tool (11 9 551) On Intake Camshaft Mounting Flats

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Do not rotate engine without special tool or a chain tensioner, the timing chain may skip on the gear of the intake camshaft

Screw lock nut (1) hand-tight on special tool 0 493 971 (11 9 340) .
Remove special tool 0 493 971 (11 9 340) .

Fig 88: Screwing Lock Nut Hand-Tight On Special Tool (11 9 340)

Courtesy of BMW OF NORTH AMERICA, INC.

Alignment pin disassembly
- Remove special tool 0 495 939 (11 9 590) .
Fig 89: Securing Crankshaft Using Special Tool (11 9 590)
Courtesy of BMW OF NORTH AMERICA, INC.

Installing the chain tensioner piston

NOTE: A new sealing ring must be installed by service personnel when the chain tensioner is fitted.

Install chain tensioner (1) and tighten.

CHAIN TENSIONER NUT SPECIFICATION

Chain tensioner to cylinder head
M22x1.5	80 Nm

Fig 90: Identifying Chain Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Connecting branch on throttle valve must be dry and free from grease.
The spacing between hose clamp and brake line must be 15 mm.
Install charge air hose (2) dry and free from grease.
Position hose clamps (1) correctly and ensure sufficient spacing to adjacent components.

Fig 91: Identifying Charge Air Hose And Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

Installing the vibration damper

Install vibration absorber.
Insert screws (1) and tighten.

TORSION DAMPER BOLTS SPECIFICATION

Torsion damper to crank shaft hub
M8x16	28 Nm

Fig 92: Identifying Vibration Damper Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installing friction wheel

Install friction wheel.

Screw-fit friction wheel in sequence 1 to 3.

FRICTION WHEEL SPECIFICATION

Friction wheel to engine
	9 Nm

Fig 93: Accessory Drive Belt Friction Gear Bolts Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Install the belt pulley.
Tighten the screws (2) using special tool 0 495 933 (11 9 581) and 0 495 935 (11 9 583) .
Loosen the oil filter strap.

Fig 94: Identifying Oil Filter Band And Bolts
Courtesy of BMW OF NORTH AMERICA, INC.
Slowly retract tensioning strap (1) in direction of arrow.
Plastic ring (2) must engage in friction wheel housing.

Fig 95: Retracting Pull Strap And Engaging Plastic Ring In Friction Gear Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Installing the front right wheel arch cover
- Feed in wheel arch cover (5).
- Insert screws (4) and tighten.
- Fit nut (3) and tighten.
- Attach screw rivets (1 and 2).
Fig 96: Identifying Wheel Arch Cover, Rivets, Nut And Screws
Courtesy of BMW OF NORTH AMERICA, INC.

Installing the front right wheel

NOTE: Risk of damage! Under no circumstances use pneumatic or electric screwdrivers to screw in and tighten the wheel bolts. Do not apply oil to new wheel bolts.

NOTE: Contact surfaces between: Brake disc and disc wheel, and brake disc and wheel hub must be clean and free from oil and grease.

NOTE: Do not use an impact screwdriver.

Degrease contact surfaces with universal cleaner, refer to BMW Parts Department.
Remove brake disc and clean if grease residues are detected in area of wheel bolt hole.
Remove dirt, grease residues and corrosion from contact surface with a drill and special tool 81 25 2 344 011.

Fig 97: Removing Dirt, Grease Residues And Corrosion From Contact Surface Using Drill And Special Tool
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Do not use an impact screwdriver.
Degrease contact surfaces with universal cleaner, refer to BMW Parts Department.
Remove dirt, grease residues and corrosion from contact surface with a drill and special tool 81 25 2 344 011.

Fig 98: Removing Dirt, Grease Residues And Corrosion From Contact Surface
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: On no account must the mounting bolt (1) protrude over contact surface (2) between brake disc and disc wheel.

Check firm fit of brake disc retaining screw (1).

FRONT DISC BRAKE SCREW SPECIFICATION

Front brake disc to wheel hub
Torx screw M10x13	Renew screw. (Contact surfaces between brake disc and wheel hub cleaned and free of grease)	27 Nm

Fig 99: Checking Firm Fit Of Brake Disc Retaining Screw

Courtesy of BMW OF NORTH AMERICA, INC.

REAR DISC BRAKE SCREW SPECIFICATION

Rear brake disc to wheel hub
Torx screw M10x13	Renew screw. (Contact surfaces between brake disc and wheel hub cleaned and free of grease)	27 Nm

NOTE: Refer to BMW Operating Fluids, Main Group 36.

Apply a thin coat of grease to wheel centering (1) in disc wheel.

Fig 100: Identifying Wheel Centering In Disc Wheel
Courtesy of BMW OF NORTH AMERICA, INC.
Take appropriate adapter from the tool set 0 495 607 (36 2 020) to tighten the wheel bolt with security code.

Fig 101: Identifying Set Of BMW Wheel Bolt Adapters (36 2 020)
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Attention! Disc wheel must rest uniformly against brake disc. In the case of non-original MINI wheel bolts/rims it may be necessary to retighten the wheel bolts on account of setting properties (refer to wheel/bolt manufacturer's information manual).
Clean wheel bolts and check threads for damage, renew if necessary.
Renew corroded wheel bolts.
Fit wheel bolts and evenly tighten crosswise by hand in order to center the disc wheel. Tighten wheel bolts to the prescribed tightening torque with a calibrated torque wrench in a crosswise sequence.

Fig 102: Tightening Wheel Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

WHEEL STUD SCREW SPECIFICATION

Wheel stud
M14 SW1 7	140 ± 10 Nm

Installing all spark plugs

NOTE: Risk of damage! Dropping the spark plug into the spark plug shaft can lead to reduction of the electrode gap and therefore impair smooth running of the engine, especially when idling. Do not drop spark plug into spark plug shaft!

First screw spark plugs into engine finger-tight with special tool 0 495 560 (12 1 220) and extension with joint.
Tighten spark plug with torque wrench, special tool 0 495 560 (12 1 220) and extension with joint.

Fig 103: Identifying Special Tool (12 1 220)

Courtesy of BMW OF NORTH AMERICA, INC.

SPARK PLUGS BOLT SPECIFICATION

Spark plugs (un-lubricated)
M12 x 1.2 5	23±3 Nm

Installing cylinder head cover (N14)

NOTE: Illustration shows N12

Replace gasket (1).
Replace all seals (2).
Clean all sealing surfaces.
Seal all edges and contact points on the cylinder head with sealing compound Drei Bond 1209.

Fig 104: Identifying Gaskets
Courtesy of BMW OF NORTH AMERICA, INC.

Secure bolts for cylinder head cover in sequence 1 to 13.

CYLINDER HEAD COVER BOLTS SPECIFICATION

Cylinder head cover to cylinder head
M6x30	10 Nm

Fig 105: Valve Cover Bolts Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Mount oxygen sensors on cylinder head (1).

Fig 106: Identifying Oxygen Sensors On Cylinder Head
Courtesy of BMW OF NORTH AMERICA, INC.
Clip on engine wiring harness with bracket (1).

Fig 107: Identifying Engine Wiring Harness Brackets
Courtesy of BMW OF NORTH AMERICA, INC.
Install gaiter (7) dry and free from grease.
Mount and lock connector (6).
Install vent hose with gaiter (7).
Connect vent hose to cylinder head cover opposite to direction of arrow.
Connect lock (5) of vent hose downwards and secure.
Connect and lock vacuum line (4).
Mount and lock connector (3).
Tighten clamps (1 and 2).

Fig 108: Identifying Vacuum Line, Connectors, Gaiter, Lock, And Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

Installing intake silencer housing (N14)

NOTE: Risk of damage to exhaust turbocharger! Fit gaiter and charge air hoses without grease and dry.

NOTE: Connecting branch on intake silencer housing must be dry and free from grease.

Install intake silencer housing (3) together with intake pipe.
Connect intake pipe (2) to intake pipe on intake silencer housing (3).
Connect gaiter (1) to intake silencer housing (3).
Fasten clamp.

Fig 109: Identifying Intake Silencer Housing, Intake Pipe And Gaiter
Courtesy of BMW OF NORTH AMERICA, INC.
Mount screw and tighten.

INTAKE FILTER HOUSING SPECIFICATION

Intake filter housing to intake manifold
6	± 0, 5 Nm

Fig 110: Locating Intake Silencer Housing Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Installing hot film air mass meter

NOTE: Risk of damage to exhaust turbocharger! Fit gaiter and charge air hoses without grease and dry.

Install hot film air mass meter (4) in direction of arrow.
Connect gaiter to hot film air mass meter.
Insert screws (3) and tighten.
Tighten clamp (2).
Connect plug connection (1).

HOT FILM AIR MASS METER SPECIFICATION

Hot film air-mass meter to intake filter housing
	4, 6 Nm

Fig 111: Removing Hot Film Air Mass Meter

Courtesy of BMW OF NORTH AMERICA, INC.

Installing ignition coils (N14)
NOTE: Ignition coils must not be contaminated by fuel. The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail! The silicone tube of the spark plug connector is coated with talc to reduce the pulling forces. The silicone tube must NOT be oiled or greased. This would greatly reduce the durability of the silicone material, which can lead to a failure of the ignition coil.

NOTE: If rubber parts are squashed, the ignition coil can slip out again during engine operation.

NOTE: Illustration shows N12
- Position the ignition coil (1) and gently push it to the limit position, if necessary by twisting it back and forth slightly. Then check anti-twist lock.
- The rubber cap must completely surround the sealing collar of the cylinder head cover.
  
  Fig 112: Positioning Ignition Coil
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  NOTE: The locking lever can become deformed if it is not installed correctly. This means that there is no longer a safety lock on the plug connection. As a result, the connector can slip out during engine operation (loose contact, misfiring).
  
  NOTE: Illustration shows N12
  
  Fig 113: Closing Ignition Coil Connector Fastener
  Courtesy of BMW OF NORTH AMERICA, INC.
- Push connector (1) with connector latch mechanism (2) open onto ignition coil.
- Carefully close connector catch (2) in direction of arrow. The connector latch mechanism must engage without great effort.
The connector must be positioned on the counter piece with hardly any gaps when the locking lever is being closed. In the process, the crank webs of the lever are positioned inside the counter piece.
Attaching engine to workshop crane
- Suspend engine with workshop crane (1) from lifting eye (2).
Fig 114: Identifying Engine Crane And Lifting Eye
Courtesy of BMW OF NORTH AMERICA, INC.
Removing special tool to secure engine
- Release series screw connections (1 and 2).
- Remove special tool 0 496 016 (11 9 630) .
Fig 115: Securing Special Tool (11 9 630) With Standard Bolts
Courtesy of BMW OF NORTH AMERICA, INC.

Removing top screw connection on alternator

Install belt tensioner (3).

Insert screws (2) and tighten.

BELT TENSIONER BOLT SPECIFICATION

Belt tensioner to alternator
M8x110	20 Nm

Mount positive battery cable.

Position nut (1) and tighten.

POSITIVE BATTERY CABLE SPECIFICATION

Positive battery cable to alternator
	13, 5 Nm

Fig 116: Identifying Belt Tensioner Nut, Screws And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Mount and lock connector.
Place drive belt (4) in position on alternator pulley.
Hold belt tensioner (1) in service position with spanner (2).
Remove locating pin (3) in direction of arrow.
Slowly relieve tension on belt tensioner (1) in direction of arrow.

Fig 117: Relieving Tension On Belt Tensioner
Courtesy of BMW OF NORTH AMERICA, INC.
Attach holder (1).
Mount screw and tighten.

Fig 118: Identifying Holder And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Installing the right engine mount

Install engine mount.
Insert screws (1) and tighten.

ENGINE MOUNT BOLT SPECIFICATION

Engine mount to body
M12 8.8 screw	68 Nm

Fig 119: Identifying Right Engine Mount Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installing engine mounting bracket

Install engine mounting bracket.

Fit nut (3) and tighten.

ENGINE SUPPORT BRACKET BOLTS SPECIFICATION

Engine support bracket to engine mount
M12x1.5 -10.9 nut	100 Nm

Insert screws (2) and tighten.

ENGINE MOUNTING BRACKET SCREW SPECIFICATION

Engine mounting bracket to adapter plate
M10 10.9 screw	56 Nm

Install ground strap, mount nut (1) and tighten.

GROUND CABLE SPECIFICATION

Ground cable to engine support bracket
Nut M8	15 Nm

Fig 120: Identifying Engine Mounting Bracket Nuts And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Detaching engine from workshop crane
- Release workshop crane (1) from lifting eye (2) and remove.
Fig 121: Identifying Engine Crane And Lifting Eye
Courtesy of BMW OF NORTH AMERICA, INC.

Mounting front panel from service position

NOTE: When installing, pay attention to retaining tabs on headlight.

Loosen screws (2).
Remove the special tool 0 495 895 (00 2 272) from the left and right.
To guarantee that front panel is correctly seated, the left and right sides of the panel must be slid evenly towards the rear.
With a second person helping, slide front panel (1) into position and secure.

Fig 122: Identifying Front Panel, Special Tool, And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Mount and tighten screws (4) and (5).

BODY LOCK BRIDGE SPECIFICATION

Lock bridge to body
	22 Nm

Connect plug connection (1).
MINI Cooper S only:
Connect air duct (3).
Fasten clamp (2).

Fig 123: Identifying Plug Connection, Clamp, Air Duct, And Screws
Courtesy of BMW OF NORTH AMERICA, INC.

Mount and tighten screws (3) and (4).

BODY SUPPORT BOLT SPECIFICATION

Lock bridge to body
	22 Nm

Attach Bowden cable (2).
Close clutch (1).

Fig 124: Identifying Clutch, Bowden Cable And Screws
Courtesy of BMW OF NORTH AMERICA, INC.

Insert nuts (2) and tighten.

BODY SUPPORT BOLT SPECIFICATION

Support to body
M8	22 Nm

Release screw of special tool 0 495 894 (00 2 271) .
Remove special tool 0 495 894 (00 2 271) .

Fig 125: Identifying Special Tool (00 2 271), Sleeve, And Nuts
Courtesy of BMW OF NORTH AMERICA, INC.
Insert gaiter (3) in lock carrier (4).
Install expansion tank (2).
Insert screw (1) and tighten.

Fig 126: Identifying Expansion Tank, Gaiter, Lock Carrier And Screw
Courtesy of BMW OF NORTH AMERICA, INC.
Version with air conditioning:
Clip coolant line (1) into holder (2).

Fig 127: Identifying Refrigerant Line And Holder
Courtesy of BMW OF NORTH AMERICA, INC.
Mount and tighten screw (1) on side panel on left and right.

Fig 128: Identifying Screw On Side Panel
Courtesy of BMW OF NORTH AMERICA, INC.

Insert screws (2) and tighten.

HOLDER SUPPORT BOLT SPECIFICATION

Support to holder, bumper, front
M8	18, 5 Nm

Version with headlight cleaning system:
Connect plug connection (1) to windscreen washer pump.

Fig 129: Identifying Windscreen Washer Pump Plug Connection And Screws
Courtesy of BMW OF NORTH AMERICA, INC.

Insert screws (3) and tighten.

HOLDER SUPPORT BOLT SPECIFICATION

Support to holder, bumper, front
M8	18, 5 Nm

Connect plug connections (2) to air conditioning compressor.
Secure cable clip (1).

Fig 130: Identifying A/C Compressor Plug Connections, Cable Clip, And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Fasten clips (1) on left and right.
Replace faulty clips (1).

Fig 131: Identifying Front Panel Clips
Courtesy of BMW OF NORTH AMERICA, INC.

Installing both headlights
NOTE: Description is for left component only. Procedure on the right side is identical.
- Version with headlight cleaning system:
- Connect hose connection (3) to high-pressure nozzle (4).
- Install headlight.
- Connect plug connection (2).
- Insert screws (1) and tighten.
FRONT PANEL HEADLIGHT SPECIFICATION

Headlight to front panel

3.5 Nm

Fig 132: Identifying High Pressure Nozzle, Hose Connection, Plug Connection, And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Adjusting headlights
- Carry out headlight adjustment at adjusting screws (1) and (2).
- A definite allocation of adjusting screws is not possible.
- Adjusting screw (1) - priority for vertical adjustment
- Adjusting screw (2) - priority for lateral adjustment
Fig 133: Identifying Headlight Adjustment Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Installing trim on front left and right wheel arch
NOTE: Description is for left component only. Procedure on the right side is identical.
- Feed trim (1) into bumper in area (A).
- Connect associated plug connection as necessary and engage trim (1) evenly.
  
  Fig 134: Releasing Cover From Clips
  Courtesy of BMW OF NORTH AMERICA, INC.
- Bend wheel arch panel (1) inwards slightly and release clip (2).
- Fasten the front wheel arch cover (1).
Fig 135: Identifying Wheel Arch Panel And Clip
Courtesy of BMW OF NORTH AMERICA, INC.
Installing left and right bumper panel
NOTE: Description is for left component only. Procedure on the right side is identical.
- Latch mechanisms (1) and guides (2) on trim (3) must not be damaged.
  
  Fig 136: Identifying Catches And Guides On Trim
  Courtesy of BMW OF NORTH AMERICA, INC.
- Fit trim (1).
Fig 137: Unclipping Trim With Special Tool 00 9 322
Courtesy of BMW OF NORTH AMERICA, INC.
Installing center trim
NOTE: Risk of damage! Paint damage on bumper panel Tape off bumper in working area with adhesive tape.

NOTE: Latch mechanisms (1) on cover (2) must not be damaged.
- First thread in trim on the side.
- Engage trim (2) evenly.
Fig 138: Identifying Trim And Latch Mechanisms
Courtesy of BMW OF NORTH AMERICA, INC.
Installing trim on radiator grille
- Feed in trim (2) from front and engage.
Fig 139: Removing Radiator Grille Trim
Courtesy of BMW OF NORTH AMERICA, INC.
Installing number plate baseplate
NOTE: Only use the vehicle-specific number plate baseplate.
- Secure number plate baseplate (2) with screws (1).
Fig 140: Identifying Number Plate Baseplate And Screws
Courtesy of BMW OF NORTH AMERICA, INC.
Connecting the battery earth lead

Headlight to front panel
	3.5 Nm

NOTE: For more information see: DISCONNECTING AND CONNECTING BATTERY EARTH LEAD

Version without intelligent battery sensor (IBS):
Connect battery earth lead (2) to battery terminal.
Tighten nut (1).
BATTERY EARTH LEAD NUT SPECIFICATION

Battery earth lead

M6 5 Nm

Fig 141: Identifying Battery Earth Lead And Nut
Courtesy of BMW OF NORTH AMERICA, INC.
Version with intelligent battery sensor (IBS):
Connect battery earth lead (2) to battery terminal.
Tighten nut (1).
BATTERY EARTH LEAD NUT SPECIFICATION

Battery earth lead

M6 5 Nm

Fig 142: Identifying Battery Earth Lead And Nut
Courtesy of BMW OF NORTH AMERICA, INC.
Close cover (1).

Battery earth lead
M6	5 Nm

Battery earth lead
M6	5 Nm

Fig 143: Identifying Cover

Courtesy of BMW OF NORTH AMERICA, INC.