Checking the timings of the camshaft

WARNING: High-voltage system.
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!

All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
For additional information see: SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
For additional information see: NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

WARNING: Working on fuel system.
Risk of fire! Danger of explosion!

When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
No fire, sparks, open flames or smoking.

CAUTION: On releasing high pressure line, fuel may emerge at high speed.
Injury hazard!

Wear suitable personal protective equipment.
Before performing any installation work, allow cooling system to cool down to less than 40°C.
Note warnings on cylinder head cover.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work

Refer to REMOVING FLAP IN LUGGAGE COMPARTMENT TRIM PANEL ON RIGHT .
Refer to DE-ENERGIZING THE HIGH-VOLTAGE SYSTEM
Refer to CHECKING THAT NO VOLTAGE IS APPLIED
Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE (STARTER UNIT BATTERY) .
Refer to REMOVING BATTERY COVER IN TRUNK .
Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY
Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
Refer to REMOVING THE SEAL FOR THE HOOD REAR .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING THE TENSION STRUT AT THE SHOCK TOWER ON THE LEFT AND RIGHT .
Refer to REMOVING THE BULKHEAD UPPER PART .
Refer to RELEASING THE HIGH-VOLTAGE CABLES ON THE EME .
Refer to REMOVING THE SECOND BULKHEAD AT THE BOTTOM .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING RESONATOR .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to REMOVING THE IGNITION COIL .
Refer to REMOVING ALL SPARK PLUGS .
Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
Refer to REMOVING THE RAIL WITH INJECTORS .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING HIGH PRESSURE PUMP .
Refer to REMOVING BOTH ACTUATORS .
Refer to REMOVING THE CYLINDER HEAD COVER .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to RELEASING THE EPS WIRING HARNESS FROM THE ELECTROMECHANICAL STEERING GEAR .
Refer to REMOVING THE THERMOSTAT FROM THE TRANSMISSION OIL LINES .
Refer to REMOVING THE HOLDER FOR THE THERMOSTAT ON THE TRANSMISSION OIL LINE .

Keep set of special tools 2 456 372 at hand:

Number	Description
1	Basic carrier
2	Setting gauge for adjusting the intake camshaft
3	Setting gauge for adjusting the exhaust camshaft
4	Screws of the basic carrier on the cylinder head
5	Screws of the gauge on the basic carrier

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Check the test gauges from the set of special tools 2 358 122 for completeness:

Number	Description
1	Test gauges for fixing in place the intake camshaft
2	Test gauges for fixing in place the exhaust camshaft

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NOTE: RISK OF DAMAGE
Damage to the engine.
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged.

Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.

With the special tool 0 493 380 (11 6 480) , turn the engine in arrow direction to the TDC firing position of cylinder 1.

Courtesy of BMW OF NORTH AMERICA, INC.
Make sure the marks (1) on the intake camshaft (E) and the exhaust camshaft (A) are legible from above.

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Make sure the cam (1) on the exhaust camshaft on cylinder 1 is pointing slightly to the inside right at an angle.

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Make sure the cam (1) on the intake camshaft on cylinder 1 is pointing leftwards at an angle.

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Make sure that the flat sections (1) on the intake and exhaust camshafts point upwards.

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Position the basic carrier (1) from the set of special tools 2 456 372 on the cylinder head.

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Tighten the screws (1) from special tool set 2 456 372 on the basic carrier (2).

TIGHTENING TORQUES SPECIFICATION

Basic carrier to cylinder head
M6	Tightening torque	8 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Position the test gauge (1) from the set of special tools 2 358 122 between the intake camshaft and the basic carrier from the set of special tools 2 456 372 .
Position the test gauge (2) from the set of special tools 2 358 122 between the exhaust camshaft and the basic carrier from the set of special tools 2 456 372 .
Tighten the screws (arrows).

TIGHTENING TORQUES SPECIFICATION

Test gauge to basic carrier
M6	Tightening torque	8 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Guide out and remove sealing cap (1).

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Make sure the right special tool 2 288 380 is resting correctly on the lock support up to dimension (X).

Dimension (X) = 55 mm

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Check whether the correct dimension has been reached
The special tool 2 288 380 is incorrectly positioned.

The TDC firing position (1) of cylinder 1 not achieved.

Courtesy of BMW OF NORTH AMERICA, INC.
Check whether the correct dimension has been reached

The special tool 2 288 380 is correctly positioned.

The engine is in TDC firing position (1) of cylinder 1.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE HOLDER FOR THE THERMOSTAT ON THE TRANSMISSION OIL LINES .
Refer to INSTALLING THE THERMOSTAT ON THE TRANSMISSION OIL LINES .
Refer to INSTALLING CYLINDER HEAD COVER .
Refer to INSTALLING BOTH ACTUATORS .
Refer to SECURING THE HIGH-VOLTAGE CABLES ON THE EME .
Refer to PREPARING THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING THE RAIL WITH INJECTORS .
Refer to INSTALLING HIGH PRESSURE PUMP .
Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to INSTALLING ALL SPARK PLUGS .
Refer to INSTALLING IGNITION COIL .
Refer to INSTALLING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to INSTALLING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to INSTALLING RESONATOR .
Refer to CONNECTING NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
Refer to INSTALLING BATTERY COVER IN TRUNK .
Refer to CONNECTING THE NEGATIVE BATTERY CABLE (12 V BATTERY) .
Refer to ACTIVATING HIGH-VOLTAGE SYSTEM .
Refer to INSTALLING FLAP IN RIGHT LUGGAGE COMPARTMENT TRIM PANEL .
Refer to CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
Refer to INSTALLING THE SECOND END PANEL UNDERNEATH .
Refer to INSTALLING ACOUSTIC COVER AT REAR .
Refer to INSTALLING THE COWL UPPER PART .
Refer to INSTALLING TENSION STRUT ON LEFT AND RIGHT SHOCK TOWER .
Refer to INSTALLING WINDSHIELD PANEL COVER .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .
Refer to SECURING THE EPS WIRING HARNESS TO THE ELECTROMECHANICAL STEERING GEAR .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE FRONT UNDERBODY PROTECTION .
Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
Refer to TAKING HOOD OUT OF THE SERVICE POSITION .