Air quality
General information
The air quality in the interior is improved by the
following components:
Emission tested passenger compartment.
Interior filter.
Air conditioning system to control
AUTO program
Principle
The AUTO program cools, ventilates or heats
the car's interior automatically.
The air distribution and the temperature are controlled
automatically depending on the interior
tem
Principle
The air flow directions can be adjusted individually
for direct or indirect ventilation.
Setting the ventilation
General information
Open the air vents and position them to ensure
effective
As far as the physical appearance and dimensions, the crankcase on the N54 is
the same as the N52. The main
change is in the materials, the N54 uses an all aluminum alloy crankcase. There
is also cast iron cylinder liners
similar to the previous M54 engine.
The reason for using the all aluminum c
Special tools required:
31 4 160
Necessary preliminary tasks:
Remove left output shaft.
Lever shaft seal (1) out of front differential with a screwdriver (2).
Fig. 113: Identifying Shaft Seal And Screwdriver
Installing shaft seal:
NOTE: The installation protective ring (1) serves to protect t