Lowering/Raising Front Axle Carrier (AWD)

31 11 506 - Lowering/raising front axle carrier (AWD)





Special tools required:
- 00 2 040 00 2 040 Basic Take-Up Fixture
- 31 4 060 31 4 060 Take-Up Set
- 31 4 070





Warning!
Danger to life!

Secure engine in installation position Securing Engine In Installation Position (N52, N53) to prevent it from falling down.





Important!
Before installing the front axle carrier, make sure there is zinc foil (1) present on middle bolting point (2).

Replace damaged zinc foil (1).

Do not stick over zinc foil (1).





Necessary preliminary tasks:
- Secure engine in installation position Securing Engine In Installation Position (N52, N53)
- Remove reinforcement plate Service and Repair
- Remove steering gear cover on both sides
- Remove lower steering spindle from power steering gear Removing and Installing/Replacing Steering Spindle Lower Section (AWD)
- 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 00 2 040 Basic Take-Up Fixture 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 00 2 040 Basic Take-Up Fixture.

Insert special tool 31 4 060 31 4 060 Take-Up Set with marking 1 into receptacle 4 of special tool 00 2 040 00 2 040 Basic Take-Up Fixture.

Insert special tool 31 4 060 31 4 060 Take-Up Set with marking 2 into receptacle 3 of special tool 00 2 040 00 2 040 Basic Take-Up Fixture.





Warning!
Danger of injury!

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 00 2 040 Basic Take-Up Fixture to front axle carrier.

If necessary, lower special tool 33 3 274.

Support front axle carrier by raising special tool 00 2 040 00 2 040 Basic Take-Up Fixture.

Note:
Make sure when raising that special tools 31 4 070 and 31 4 060 31 4 060 Take-Up Set are correctly inserted in the front or rear recesses on the front axle carrier.





M57T2:

Note:
This bracket is only installed on the left side.

Release bolts (1).

Tightening torque 31 10 13AZ Front Axle Suspension.





Important!
Pay attention to power steering hoses and lines when lowering and raising. Hoses/lines must not be kinked/tensioned/bent!

When lowering and raising, make sure the cover for the relevant tension strut rubber mount is free to move.





Release screws (1, 2).

Installation Note:
Check threads for damage; if necessary, repair with Helicoil thread inserts Service and Repair.

Tighten down screws (1) and then screws (2).

Tightening torque 31 10 1AZ Front Axle Suspension.





Important!
Risk of damage!

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 Adjustments