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
General information
The windows can be opened with the vehicle
key from the outside as well as closed with Comfort
Access.
With Comfort Access: The windows can be
closed from the outside via Comfort Access.
When a window is often opened in the same position,
this task can be performed by the BMW
I