SEE MORE:
(cylinder bank 5 to 8)
Necessary preliminary tasks:
Read out fault memory of control unit of Digital Motor Electronics (DME)
Switch off ignition
Remove design cover, if equipped.
Unlock hose on tank venting valve and disconnect.
NOTE: Solenoid valve (1) controls adjustment unit on inlet side.
The valvetrain on the N52 introduced in 2006, used 5 mm valve stems on both
the intake and exhaust. To
increase durability, the exhaust valve stems were increased to 6 mm from 6/06
production.
All of the new NG6 engine have adopted the 6 mm valve stem for the exhaust, the
intake stem remains at