31 11 506 Lowering/Raising Front Axle Carrier (AWD)
Special tools required:
- 00 2 040
- 31 4 060
- 31 4 070
Secure engine in installation position to prevent it from falling down.
Replace damaged zinc foil (1).
Do not stick over zinc foil (1).
Necessary preliminary tasks:
- Secure engine in installation position
- Remove reinforcement plate
- Remove steering gear cover on both sides
- Remove lower steering spindle from power steering gear
- If necessary, disconnect plug connection from EH converter and remove line from front axle carrier
- If necessary, disconnect plug connection from ride-height sensor and remove line from front axle carrier
- If necessary, disconnect vacuum line of electrically operated valve from Y-distributor and expose
If necessary, position special tool 00 2 040 with a 2nd person helping on workshop jack.
Insert special tool 31 4 070 into corresponding receptacles 1 and 2 of special tool 00 2 040.
Insert special tool 31 4 060 with marking 1 into receptacle 4 of special tool 00 2 040.
Insert special tool 31 4 060 with marking 2 into receptacle 3 of special tool 00 2 040.
Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.
When supporting components, make sure that
- the vehicle can no longer be raised or lowered
- the vehicle does not lift off the locating plates on the lifting platform
Align special tool 00 2 040 to front axle carrier.
If necessary, lower special tool 33 3 274.
Support front axle carrier by raising special tool 00 2 040.
M57T2:
Release bolts (1).
Tightening torque 31 10 13AZ .
When lowering and raising, make sure the cover for the relevant tension strut rubber mount is free to move.
Release screws (1, 2).
Installation:
Check threads for damage; if necessary, repair with Heli-coil thread inserts.
Tighten down screws (1) and then screws (2).
Tightening torque 31 10 1AZ .
The following operation must be carried out during lowering:
- N54 with automatic transmission: Release screws (1) and remove bracket (2) for transmission oil cooler lines from front axle carrier
Lower front axle carrier until power steering gear rests on output shaft.
After installation:
- Carry out steering angle sensor adjustment