Releasing the VANOS central valve

NOTE: DANGER
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
After replacing one or more VANOS central valves or VANOS adjusters:
When removing, make note of the identification/part number of the VANOS central valve or VANOS adjuster and consider writing it down.
It must be replaced with a VANOS adjuster or VANOS central valve with the same part number. A mixed installation is not allowed.
Read out the vehicle l-level and proceed accordingly.
Be absolutely certain to pay attention to PuMA measure 64122020.
For further information, see the applicable BMW parts catalogue.

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

Preliminary work

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 SEAL FOR THE HOOD REAR .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING BOTH TENSION STRUTS FROM SHOCK TOWER .
Refer to REMOVING THE CENTER COWL UPPER PART .
Refer to REMOVING THE RIGHT SEALING FRAME .
Refer to FASTENING HIGH-VOLTAGE CABLES ON THE ELECTRICAL MACHINE ELECTRONICS .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING LEFT SEALING FRAME .
Refer to REMOVING THE CENTER BULKHEAD LOWER PART .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING RESONATOR .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to REMOVING IGNITION COILS .
Refer to REMOVING ALL SPARK PLUGS .
Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING HIGH PRESSURE PUMP .
Refer to REMOVING THE INJECTORS .
Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
Refer to REMOVING REAR THRUST FIELD .
Refer to DRAINING THE COOLANT FROM THE HIGH-TEMPERATURE COOLING SYSTEM .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING AUXILIARY COOLANT PUMP FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVING FRONT ENGINE ENCAPSULATION .
Refer to REMOVING BOTH ACTUATORS .
Refer to REMOVING THE CYLINDER HEAD COVER .
Refer to PARTIALLY RELEASE ACOUSTIC COVER OF OIL SUMP .
Refer to REMOVING THE THERMOSTAT FROM THE TRANSMISSION OIL LINES .
Refer to TURNING THE ENGINE ON THE VIBRATION DAMPER .
Refer to BLOCKING THE CAMSHAFTS .
Refer to BLOCKING THE CRANKSHAFT IN HE TDC FIRING POSITION OF CYLINDER 1 .
Refer to REMOVING CHAIN TENSIONER .

NOTE: TECHNICAL INFORMATION
Assemble the tools for releasing and tightening of the VANOS central valves according to their accessibility.

Have the special tool 2 469 138 ready.

Courtesy of BMW OF NORTH AMERICA, INC.

Have all the special tools and commercially available tools ready.

Number	Description
1	Standard torque wrench
2	Wrench socket set 2 450 487
3	Reversible ratchet 0 496 855
4	Commercially available reduction
5	adapted 469 138

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble all the special tools and commercially available tools as shown.

Courtesy of BMW OF NORTH AMERICA, INC.
To release the VANOS central valve (1) use the reversible ratchet (2) from the special tool 0 496 855 with the special tool 2 450 487.

Courtesy of BMW OF NORTH AMERICA, INC.
To release VANOS central valve (1), use the special tool 0 496 855.

Courtesy of BMW OF NORTH AMERICA, INC.
Release the VANOS central valve of the intake adjuster (1) with special tool 0 496 855 or 2 450 487.

Courtesy of BMW OF NORTH AMERICA, INC.
Release VANOS central valve of the exhaust camshaft adjuster (1) with the special tool 0 496 855 or 2 450 487.

Courtesy of BMW OF NORTH AMERICA, INC.