Loosen the plug connection on the VANOS central valve, exhaust side, cylinders 5 to 8

Preliminary work 

• Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
• Refer to REMOVING THE LEFT AND RIGHT FRONT-END STRUT .
• Refer to REMOVING FRONT CROSS CONNECTION (FRONT-END STRUT REMOVED) .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING INTAKE SILENCER HOUSING .
• Refer to REMOVING FAN COWL .
• Refer to REMOVING THE LEFT UNFILTERED-AIR DUCT .
• Refer to REMOVING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to DETACHING THE CHARGE AIR HOSE FROM THE EXHAUST TURBOCHARGER OF CYLINDERS 5 TO 8 .
• Refer to REMOVING LEFT CHARGE AIR COOLER .
• Refer to DRAINING THE COOLANT FOR THE CHARGE AIR COOLER .

• Pull the lock (1)  the direction of the arrow.
• Disconnect the plug connection (2)  on the VANOS central valve in the direction of the arrow.

  Courtesy of BMW OF NORTH AMERICA, INC.