BMW X5: Transfer Case, General

 Valvetrain

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

 Fuel Ventilation

REMOVING AND INSTALLING/REPLACING TANK LEAK DIAGNOSIS MODULE (PETROL/GASOLINE CARS WITH US DMTL VERSION) Necessary preliminary tasks: Remove carbon canister. Unlock and disconnect quick-connect coupling (1). Unfasten hose clip (2) and remove hose. Installation: If necessary, replace hose clamp.