11 31 560 Replacing both timing chains (N47)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Follow diagnosis instruction.

Necessary preliminary tasks:

Remove ENGINE
Mount engine on ASSEMBLY STAND
Remove CYLINDER HEAD COVER
Remove FLYWHEEL
Remove OIL SUMP

NOTE: Cylinder head is not removed.

Removal:

IMPORTANT: Magnet wheel (1) is magnetic.
Keep magnet wheel (1) in a plastic bag away from swarf.

Remove magnet wheel (1) from crankshaft.

Fig 1: Magnet Wheel

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Release screws (1) of wiring harness.

Unlock plug connection (2) of the crankshaft pulse sensor and disconnect.

Fig 2: Crankshaft Pulse Sensor Plug Connection

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Release screw of high pressure pump (if fitted).

Fig 3: High Pressure Pump Screw

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Release screws (1).

Unfasten screws (2).

Fig 4: Screws

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Loosen the timing case cover with a screwdriver (1) in the direction of the arrow.

Fig 5: Loosening Timing Case Cover With Screwdriver

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Loosen the timing case cover with a screwdriver (1) in the direction of the arrow.

Fig 6: Loosening Timing Case Cover With Screwdriver

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Carefully remove timing case cover (1) in direction of arrow.

Fig 7: Removing Timing Case Cover

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Crank engine with special tool 11 6 480 to TDC firing position of cylinder no. 1.

IMPORTANT: Do not turn the engine against the direction of travel .

Fig 8: Special Tool (11 6 480)

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The cam on the intake camshaft (E) points obliquely upwards at cylinder No. 1.

The cam on the exhaust camshaft (A) points obliquely outward to the left at cylinder No. 1.

Fig 9: Camshaft Points

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The mark on the exhaust camshaft (A) must correspond to the mark on the intake camshaft (E).

NOTE: See Fig 10.

Fig 10: Exhaust Sprocket Wheel Marking

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Place special tool 11 8 760 on exhaust camshaft.

NOTE: Special tool 11 8 760 must lie flush on cylinder head.

Fig 11: Placing Special Tool (11 8 760) On Exhaust Camshaft

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Only release screws (1).

Remove chain tensioner (2).

Fig 12: Removing Chain Tensioner

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Release bearing journal (1).

Remove guide rail (2) upwards.

Release bearing journal (3).

Remove tensioning rail (4) downwards.

Fig 13: Bearing Journal, Tensioning And Guide Rail

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Remove top timing chain with camshaft sprocket (1).

Fig 14: Camshaft Sprocket

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IMPORTANT: Risk of damage to the valve gear
The guide pin (1) of the crankshaft may not exit the marked area during the entire repair process.
Only after final setting of the timing the engine may be spun again.

NOTE: Cylinder head remains mounted.

Fig 15: Crankshaft Guide Pin

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Vehicles before 5/2013:

Fix special tool 11 4 320 on crankshaft and fix with a screw (1).

Fig 16: Installing Special Tool (11 4 320) On Crankshaft

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Vehicles after 5/2013:

Mount special tool 2 285 671 on the crankshaft, screw in transmission bolt (1) somewhat.

Fig 17: Installing Special Tool (2 285 671) On Crankshaft

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IMPORTANT: Left-hand threads.

Release screw (1) on camshaft sprocket of oil pump.

Fig 18: Oil Pump Camshaft Sprocket Screw

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NOTE: To loosen the central bolt on the high pressure pump, crankshaft must remain fixed with special tool 11 4 320 or 2 285 671 .

Release central bolt (1) of high pressure pump.

IMPORTANT: Release central bolt only, do not remove.
Pistons of cylinder 1 and 4 are at 45° after TDC position.

Fig 19: Removing High Pressure Pump Central Bolt

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NOTE: To loosen the central bolt on the high pressure pump, crankshaft must remain fixed with special tool 11 4 320 or 2 285 671 .

Screw special tool 11 8 740 in hand-tight.

Twist out central bolt of high pressure pump (1) until impeller has detached from taper of high pressure pump.

Fig 20: Removing High Pressure Pump

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Using tensioning rail (1), press chain tensioner in direction of arrow until special tool 11 3 340 /11 4 120 can be positioned.

If necessary, remove chain tensioner.

Fig 21: Pressing Chain Tensioner

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Release bearing journal (1).

Remove guide rail (2).

Release bearing journal (4).

Remove tensioning rail (3).

Fig 22: Bearing Journal, Tensioning And Guide Rail

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Release screw (1).

Remove special tool 11 4 320 or 2 285 671 .

Fig 23: Special Tool (11 4 320)

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Remove camshaft sprocket of the oil pump and drive chain of the oil pump.

Remove impeller (1) with timing chain (2) from high pressure pump.

Remove timing chain (2).

Fig 24: High Pressure Pump Impeller And Timing Chain

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Installation:

IMPORTANT: The high pressure pump and crankshaft must be positioned to each other with special tool 2 285 671 .

Fit timing chain (1).

Lay drive chain for oil pump.

Position crankshaft with special tool 2 285 671 (crankshaft is in the 11° top dead center ).

Fix special tool 2 285 671 via the fitting bush on the crankcase.

Fig 25: Positioning Crankshaft With Special Tool (2 285 671)

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Pay attention to spline groove on high pressure pump (1).

Fig 26: High Pressure Pump Spline Groove

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Installation note:

The marking on the crankcase and spline groove on the high pressure pump must be in line (graphic N57).

Fig 27: Crankcase And Spline Groove Marking

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Installation note:

Groove and marking (0) on pinion are on a single plane.

Fig 28: Pinion Groove And Marking

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Position impeller (1) with timing chain (2) on high pressure pump.

Marking (0) and cast lug must be in line.

Fig 29: High Pressure Pump Impeller Position

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Insert central bolt (1) of high pressure pump.

Fig 30: High Pressure Pump Central Bolt

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Installation note:

Clean screw thread.

Renew all bearing journals.

Position guide rail (1).

Screw in bearing journals (2).

Tightening torque: 11 11 3AZ .

Fig 31: Guide Rail And Bearing Journals

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Installation note:

Clean screw thread.

Renew all bearing journals.

Position and tighten tensioning rail (3).

Screw in and tighten bearing journal (4).

Tightening torque: 11 11 3AZ .

Fig 32: Bearing Journal And Tensioning Rail

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IMPORTANT: Clean sealing surfaces (1) with compressed air.

Fig 33: Tensioning Rail Sealing Surfaces

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If necessary, screw hydraulic chain tensioner (1) on again.

Tightening torque: 11 11 4AZ .

Remove special tool 11 3 340 /11 4 120 .

Fig 34: Pressing Hydraulic Chain Tensioner

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Position timing chain with secondary sprocket wheel for oil pump.

Screw in screw in oil pump shaft (1).

Installation note:

Pay attention to mounting flats on oil pump shaft (1) (see arrow).

Fig 35: Installing Oil Pump Shaft Mounting Flats

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For better support of the special tool 2 285 671 screw in transmission bolt (1) slightly.

Fig 36: Supporting Special Tool (2 285 671)

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Tighten central bolt (1) of high pressure pump.

Tightening torque: 13 52 2AZ .

IMPORTANT: Left-hand threads.
Replace screw.

Tighten screw (2) of oil pump.

Tightening torque: 11 41 3AZ .

NOTE: Do not remove special tool 2 285 671 yet.

Fig 37: Tightening High Pressure Pump Central Bolt

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Special tool 11 8 760 must lie flush on cylinder head.

Fig 38: Placing Special Tool (11 8 760) On Exhaust Camshaft

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Installation note:

Place the camshaft sprocket with timing chain on the intake camshaft such that screws (1) are located in the center of the elongated holes.

Fig 39: Screws

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Lay timing chain on top with camshaft sprocket (1) and fix screws.

Fig 40: Camshaft Sprocket

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Installation note:

Clean all threads of bearing journals.

Renew all bearing journals.

Install guide rail (2).

Screw in and tighten bearing journal (1).

Tightening torque: 11 12 4AZ .

Install tensioning rail (4).

Screw in and tighten bearing journal (3).

Tightening torque: 11 11 3AZ .

Fig 41: Bearing Journal, Tensioning And Guide Rail

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Installation note:

Renew chain tensioner.

Fix screws (1) with 10 Nm and release by 90°.

Install chain tensioner (2) and tighten.

Tightening torque: 11 12 3AZ .

Remove special tool 2 285 671 .

Fig 42: Installing Chain Tensioner

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IMPORTANT: Engine is still found at 11° as per TDC.
In order to adjust the timings timing case cover and flywheel must be mounted.

If necessary remove the gasket residue at the cylinder head gasket (1).

Fig 43: Cylinder Head Gasket

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Installation note:

Fitting sleeves (1) must be exchanged.

Use the fitting sleeves with 9 millimeter length.

Mount the fitting sleeves (1) in the crankcase at the limit position.

Fig 44: Crankcase Sleeves

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Installation note:

Mount the timing case cover without the crankshaft seal.

Support the timing case cover (1) from below.

Set the inner punch in the crankshaft seal (2).

Drive the crankshaft seal (2) outwards.

Fig 45: Crankshaft Seal

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Remove gasket remnants from crankcase and timing case cover using special tool 11 4 470 .

Apply sealing bead (1) at marked points.

Installation note:

Loctite 5970, (LIQUID SEALING COMPOUND 2.2 under consumable)

Application time of sealing bead (1) max. 12 min.

Fig 46: Sealing Bead Marked Points

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Thickness of sealing bead: 1.5 to 2.0 mm .

All N47:

Installation note:

Loctite 5970, (LIQUID SEALING COMPOUND 2.2 under consumable)

Application time of sealing bead (1) max. 12 min.

Apply sealing bead (1) as shown on the cylinder head gasket.

Thickness of sealing bead: 1.5 to 2.0 mm .

Strength of the sealing bead on the ends (marked area): 2.5 to 3.0 mm .

Fig 47: Cylinder Head Gasket Sealing Bead

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IMPORTANT: Do not shear off sealing beads.

Place the timing case cover (1) uniformly on the crankcase/cylinder head.

Fig 48: Timing Case Cover

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Place the timing case cover (1) on the fitting sleeves in the crankcase (2) in the center and attach with a rubber mallet in direction of arrow.

Fig 49: Placing Timing Case Cover On Crankcase Sleeves

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Insert screw (2) and tighten until it makes contact.

Insert bolts (1).

Fig 50: Screws And Bolts

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Installation note:

Replace screws 1 - 11.

Tighten screws in the sequence 1 - 11 .

Tightening torque: 11 14 2AZ .

Tighten the screws 12 - 14 .

Tightening torque: 11 00 4AZ .

Fig 51: Timing Case Cover Bolts Tightening/Loosening Sequence (N47)

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Tighten the screw of the high pressure pump (if installed).

Tightening torque: 11 00 2AZ .

Fig 52: High Pressure Pump Screw

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Replace CRANKSHAFT SEAL (1) .

Fig 53: Replacing Crankshaft Seal

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Attach OIL SUMP with special tool 11 8 780 .

Position magnet wheel (1) on crankshaft.

NOTE: Note the installation position of the magnet wheel.

Fig 54: Magnet Wheel

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Installation note:

Flywheel must be installed to determined TDC.

IMPORTANT: Clean thread in the crankshaft.
Replace screws.

Fig 55: Installing Flywheel

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Position flywheel.

INSTALL FLYWHEEL .

Turn back the flywheel (1) from the 11° to the OT-position.

Use special tool 11 5 320 to block the crankshaft in the TDC firing position Cylinder 1

Fig 56: Positioning Flywheel Using Special Tool (11 5 320)

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Special tool 11 8 760 must lie flush on cylinder head.

Fig 57: Placing Special Tool (11 8 760) On Exhaust Camshaft

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Tighten camshaft bolts (1).

Tightening torque: 11 31 1AZ .

Spin engine twice in the direction of rotation.

CHECK TIMING and if necessary correct.

Remove all special tools.

Fig 58: Camshaft Bolts

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Tighten screws (1) of the wiring harness.

Tightening torque: 11 00 2AZ .

Connect the plug connection (2) of the pulse sensor of crankshaft.

Fig 59: Crankshaft Pulse Sensor Plug Connection

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Required follow-up work: