Check the VANOS adjuster of cylinder bank 2

Preliminary work 

• Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
• Refer to REMOVING THE LEFT AND RIGHT UNDERSHIELD (TANK COVER) .
• Refer to REMOVING THE REAR LEFT AND RIGHT TENSION STRUT .
• Refer to REMOVING THE LEFT AND RIGHT REAR DIFFUSER .
• Refer to REMOVING THE STIFFENING PLATE .
• Refer to REMOVING EXHAUST SYSTEM .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING LEFT OXYGEN CONTROL SENSOR .
• Refer to REMOVING RIGHT OXYGEN CONTROL SENSOR .
• Refer to REMOVING SUSPENSION STRUT BRACE .
• Refer to REMOVING RIGHT SUSPENSION STRUT BRACE .
• Refer to REMOVING INTAKE SILENCER HOUSING .
• Refer to REMOVING COVER FOR THE RIGHT DME CONTROL UNIT .
• Refer to REMOVING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to REMOVING COVER FOR THE DME CONTROL UNIT ON LEFT .
• Refer to REMOVING THE DME CONTROL UNIT FOR CYLINDERS 5 TO 8 .
• Refer to REMOVING THE HOLDER FOR THE DME CONTROL UNIT ON THE LEFT .
• Refer to REMOVING THE RIGHT OXYGEN SENSOR MONITOR .
• Refer to REMOVING LEFT OXYGEN MONITOR SENSOR .
• Refer to REMOVING THE RIGHT-HAND ENGINE VENTILATION LINE AND THE CRANKCASE VENTILATION INTAKE PIPE .
• Refer to REMOVING THE LEFT ENGINE VENTILATION LINE .
• Refer to REMOVING UPPER HEAT SHIELD .
• Refer to RELEASING SCREW BETWEEN THE LEFT AND RIGHT HEAT SHIELD .
• Refer to REMOVING THE LEFT HEAT SHIELD .
• Refer to REMOVING RIGHT HEAT SHIELD .
• Refer to REMOVING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
• Refer to REMOVING THE TOP LEFT COVER IN THE ENGINE COMPARTMENT , and REMOVING THE TOP RIGHT COVER IN THE ENGINE COMPARTMENT .
• Refer to REMOVING UPPER CROSS CONNECTION .
• Refer to REMOVING THE TENSION STRUT AT THE SHOCK TOWER ON THE LEFT AND RIGHT .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING THE LEFT UNFILTERED-AIR DUCT .
• Refer to REMOVING FAN COWL .
• Refer to DRAINING THE COOLANT FROM THE HIGH-TEMPERATURE COOLING SYSTEM .
• Refer to DRAINING THE COOLANT FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to RELEASING LEFT CHARGE AIR LINE PARTIALLY .
• Refer to PARTIALLY RELEASING THE RIGHT CHARGE AIR LINE .
• Refer to REMOVING LEFT CLEAN AIR PIPE .
• Refer to REMOVING RIGHT CLEAN AIR PIPE .
• Refer to REMOVING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to REMOVING DRIVE BELT .
• Refer to REMOVING LEFT CHARGE AIR COOLER .
• Refer to REMOVING RIGHT CHARGE AIR COOLER .
• Refer to REMOVING THE COOLANT PUMP .
• Refer to REMOVING THE BELT TENSIONER .
• Refer to REMOVING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
• Refer to REMOVING THE IGNITION COIL FROM CYLINDER 1 .
• Refer to REMOVING THE IGNITION COILS OF CYLINDERS 5-8 .
• Refer to RELEASING THE WIRING HARNESS SECTION FROM THE LEFT HAND CYLINDER HEAD COVER .
• Refer to REMOVING THE HIGH-PRESSURE RAIL ON THE LEFT .
• Refer to REMOVING THE INJECTORS FOR CYLINDERS 5 TO 8 .
• Refer to REMOVING FUEL DELIVERY LINE .
• Refer to REMOVING LEFT HIGH PRESSURE PUMP .
• Refer to REMOVING VANOS SOLENOID ACTUATOR, EXHAUST OF CYLINDER BANK 2 .
• Refer to REMOVING VANOS SOLENOID ACTUATOR, INTAKE OF CYLINDER BANK 2 .
• Refer to REMOVING LEFT CYLINDER HEAD COVER .
• Refer to REMOVING THE SEALING CAP ON THE CYLINDER HEAD OF THE CYLINDER BANK 2 .

Check 

• Check the lock of intake and exhaust camshaft adjusters.
• Position open-end spanner (1) on the hexagon head of the camshaft (2).
• Move open-end spanner slightly back and forward in direction of arrow.
• The camshafts must have a frictional connection to the VANOS adjusters (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» Camshafts are connected to the VANOS adjusters (2) with frictional connections.

Measure

• Continue the repair with the next step.

Result 

» If no frictional connection exists, replace the affected VANOS adjuster.

Measure

• Replace the affected VANOS adjuster.

Measure

• Check timing again.