Releasing the VANOS central valve of the intake adjuster

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 DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
Refer to REMOVING THE SEAL FOR THE HOOD REAR .
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 LEFT AND RIGHT WIPER ARM .
Refer to REMOVING WINDSHIELD PANEL COVER .
Refer to REMOVING TRAILING LINK AT SPRING BOLT .
Refer to REMOVING THE CENTER COWL UPPER PART .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to RELEASING THE HIGH-VOLTAGE CABLES ON THE EME .
Refer to REMOVING THE CENTER BULKHEAD LOWER PART .
Refer to REMOVING BOTH ACTUATORS .
Refer to REMOVING THE CLEAN AIR PIPE WITH THE RESONATOR .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING ALL IGNITION COILS .
Refer to REMOVING ALL SPARK PLUGS .
Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING THE RAIL WITH INJECTORS .
Refer to REMOVING HIGH PRESSURE PUMP .
Refer to REMOVING THE HOLDER OF THE POSITIVE BATTERY CABLE .
Refer to REMOVING THE HEAT SHIELD AT THE CYLINDER HEAD .
Refer to REMOVING THE CYLINDER HEAD COVER .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR .
Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to IF INSTALLED: REMOVE THE UNDERBODY PROTECTION OF THE STEERING SYSTEM .
Refer to REMOVING THE THERMOSTAT FROM THE TRANSMISSION OIL LINES .
Refer to REMOVING THE HOLDER FOR THE THERMOSTAT ON THE TRANSMISSION OIL LINE .
Refer to BLOCKING ENGINE IN TDC FIRING POSITION .
Refer to REMOVING CHAIN TENSIONER .

To release the VANOS central valve (1) , use reversible ratchet (2) from special tool 0 496 855 with special tool 2 450 487 .

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The figure shows the rear of the engine.
Release the VANOS central valve (1) of the intake adjuster.

Courtesy of BMW OF NORTH AMERICA, INC.