Lower front axle

AR33.10-P-0101M

Lower front axle

21.10.11

30.4.03

Risk of death. Death may result if vehicle slips or topples from the lifting platform, notes on safety included for the first time.

30.4.03

Turn key in electronic ignition switch control unit to position "0", included for the first time.

Operation step 2

30.4.03

Remove air filter housing, included for the first time

Step 3.1

 

Remove/install

 Danger!

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 Installation

Only tighten nuts and bolts of chassis components when vehicle is in a ready-to-drive condition.

1.1

Deactivate easy entry/exit function

Vehicles with memory package (driver seat, steering column, mirrors) code 275

 Otherwise the driver seat and steering wheel move into a different position if the driver door is opened or closed for example. Damage to the upper frame can occur when the holding device is installed.

 Deactivation is done using the buttons on the steering wheel in the "comfort" menu of the multifunction display; see operator's manual.

2

Turn front wheels to straight-ahead position and secure steering wheel with  holding device.

 Swivel sun visor to side and  insert retainer.

 On a disengaged steering coupling (25) the steering wheel should not be turned because the spiral contact coil will be destroyed.



*129589012100

3

Switch ignition off, remove ignition key (transmitter key)

 On vehicles with code 889 Keyless Go: Press keyless go start/stop button repeatedly until the ignition is switched off.

Remove the Keyless Go transmitter card or transmitter key from the vehicle and store beyond the reach of the transmitter (min.
2 m).

4.1

Remove air filter housing

Model 220.028 /128

AR09.10-P-1050M

5

Raise engine slightly until front engine mounts are relieved of load

 Do not stretch engine mounts since this can damage the vulcanization.

Model 220 except 220.028 /128

AR33.10-P-0100-01R

Model 220.028 /128

AR01.10-P-7500-03M

Load regulator
gotis://H_00.12_04.0

6

Raise vehicle with vehicle lift

7.1

Remove lower engine compartment paneling

Vehicles with gasoline engine

AR61.20-P-1105M

7.2

Remove bottom sections of soundproofing

Vehicles with diesel engine

AR94.30-P-5300M

8

Remove bolt (25a) of steering coupling (25) at the lower steering shaft (80a)

 Installation: Replace locking plate (25f) with self-locking nut.



*BA46.10-P-1001-01E

9

Insert suitable tool in the bore of the steering coupling (25) or in the bore of the lower steering shaft (80a) and pull lower steering shaft (80a) upwards out of the steering coupling (25)

 Do not counterhold at the rubber boot or at the plastic temperature protection disk for the lower steering shaft (80a). Do not use force (hammer blows, excessive leverage) as the lower steering shaft (80a) is sensitive to lateral forces.

 Installation: Insert lower steering shaft (80a) all the way into the steering coupling (25); pay attention to the studs of the steering coupling (25) while doing so and the groove of the lower steering shaft (80a) (arrows).

10

Remove bolts (40c) at bottom of both suspension struts (40)

 Installation: Bolts (40c) after tightening must lie flush with the suspension strut (40) or be slightly recessed.

 Except model 220.8 and except model 220 with code Z07

*BA32.25-P-1002-04B

 Model 220.8 and model 220 with code Z07

*BA32.25-P-1006-04C

11

Remove bolts (1g) of the front engine mounts on the front axle carrier (1)



*BA22.10-P-1002-03A

12

Prop front axle carrier (1) using transmission platform and transmission jack

AR33.10-P-0100-03I

Transmission plate for passenger cars and commercial vehicles
gotis://A_25/35/49_02.0

Transmission jack 2.0-7.0 t
gotis://H_00.10_01.0

13.1

Detach pressure supply valve unit from front axle carrier (1)

Vehicles with Active Body Control (Code 487) only.

AR32.50-P-0003-01M

14.1

Remove bolts (3) and take off ABC lines

Vehicles with Active Body Control (Code 487) only.

15.1

Remove bolts (4) and take off ABC lines

Vehicles with Active Body Control (Code 487) only.

16

Remove bolts (1f) from front axle carrier (1) at front end

 The bolts (1f) are self-tapping, so the following points must be observed:

 Never retap the thread in the side member

 Replace bolts

 Use only original bolts (4 x)

 Do not attach bolts at an angle
when screwing in

 Do not use an impact bolt tightener

 Observe tightening torque

 Installation: Before tightening the bolts (1f), align the front axle carrier (1) on the left and right using drift (a, 14.8 mm diameter). After this, insert rubber plugs.



*BA33.10-P-1003-01A

17

Lower front axle carrier (1)

 Only lower front axle carrier (1) to the extent that no lines and no components are damaged

18

Install in the reverse order

19

Perform wheel alignment check

Model 220 except model 220.8, except model 220 with special protection version code 979, with top protection code Z07

AR40.20-P-0200I

Model 220 with special protection version code 979, with top protection code Z07

AR40.20-P-0200MB

Model 220.8

AR40.20-P-0200MP

Number

Designation

Model
220

BA22.10-P-1002-03A

Front engine mount on front axle carrier

Nm

35

Number

Designation

Model
220.025/026/028/063/
065/067/070/073/074/
075/125/126/128/163/
165/167/170/173/174/
175/176/178/179

BA32.25-P-1002-04B

Bolt, front suspension strut to spring control arm

Nm

20

Number

Designation

Model 220 with code Z07

Model 220.875/
878

BA32.25-P-1006-04C

Front suspension strut to spring control arm

Nm

110

110

Number

Designation

Model
220

BA33.10-P-1003-01A

Bolt, front axle carrier to front end

Nm

100

Number

Designation

Model
220.025/026/
028/063/065/
067/070/073/
074/075/125/
126/128/163/
165/167/170/
173/174/175/
176/178/179/
875/878

BA46.10-P-1001-01E

Bolt, steering coupling to steering shaft

Stage 1

Nm

30

Stage 2

°

-