Remove/install front axle

AR33.10-P-0100TW

Remove/install front axle

2.11.11

11.12.06

Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle

*BA33.20-P-1018-01A

21.2.07

Special tool 220 589 00 15 00 (set of drifts) incorporated

Step 24

*220589001500

 

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

Danger!

Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid

Depressurize hydraulic system completely before starting any work on system. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A



Notes on self-locking nuts and bolts

All models

AH00.00-N-0001-01A



Notes on AIRmatic

AH32.22-P-1000-02T

 Installation

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

1

Remove wheels



Remove/install wheels, rotate if necessary

AP40.10-P-4050Z

2

Detach hexagon collar bolt from front axle shaft

 To loosen the front axle shaft, if necessary screw in the hexagon collar bolt a few threads again and hammer out the front axle shaft slightly using a rubber hammer.

AR33.30-P-0620-05P

 Collar bolt, front axle shaft to front axle shaft flange

*BA33.30-P-1003-02C

3

Deactivate SBC brake system using STAR DIAGNOSIS.

Vehicles with SBC brake system

4

Empty, fill front suspension struts using STAR DIAGNOSIS

With AIRmatic (semi-active air suspension), code 489

5

Move front wheels to straight-ahead position and secure steering wheel.

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

 On vehicles with easy entry/exit, this function must be disabled otherwise the windshield may be damaged.

 Holding device

*129589012100

6

Remove air filter housing with air ducts

 Pull air filter housing vertically upwards off the rubber retainers on the cylinder head covers.

Model 211.087 /092 /287 /292

AR09.10-P-1150TS

 Installation: Rub the rubber retainers on the cylinder head covers and the sealing ring of the hot film mass air flow sensor in the air filter housing with liquid lubricant.

Lubricant paste

*BR00.45-Z-1002-06A

7

Extract the hydraulic fluid from the power steering pump's reservoir

 Hand pump

*210589007100

8

Attach engine hoist and raise engine

 Make sure when lifting out engine that no cables and lines are damaged and that engine does not hit against partition wall.

AR33.10-P-0100-01T

Use optionally:

 Engine hoist

*240589006100

Engine support device, engine hoist
gotis://A_01_09.0

9

Remove front parts of fender liner in front fender

AR88.10-P-1310T

10

Disconnect electrical connector

 On the left and right front trailing arm.

AR42.10-P-1040-04TV

11

Disconnect electrical connector

With AIRmatic (semi-active air suspension), code 489

AR32.22-P-1500-01TV

Danger!

Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes.

Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.

AS42.50-Z-0001-01A

12

Disconnect brake hose from brake line

AR42.10-P-0013T

13

Detach link rod from torsion bar

AR32.20-P-0300-02VM

 Self-locking nut, link rod to torsion bar

*BA32.20-P-1002-02B

14

Loosen front shock-absorber strut from lower transverse control arm

AR33.20-P-0500-06VM

 Nut, shock-absorber strut to lower transverse control arm

*BA32.25-P-1012-04B

15

Press follower joint (8) out of steering knuckle (5)

 When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the of the parts will be reduced.

AR33.20-P-0500-01VM

 In the process, secure steering knuckle to prevent it from tilting away. The brake hose and electrical feed cables must not be stretched.

 Self-locking nut, upper transverse control arm follower joint to steering knuckle

*BA33.20-P-1018-01A

 Puller

*202589023300

 Thrust piece M101.5

*210589046300

16.1

Remove lower engine compartment paneling

Vehicles with gasoline engine

AR61.20-P-1105T

 Installation: Only install the engine compartment paneling after the leak test on the rack-and-pinion steering e.

16.2

Remove bottom section of soundproofing

Vehicles with diesel engine

AR94.30-P-5300T

 Installation: Install bottom section of soundproofing only after the leak check of the rack-and-pinion steering.

17

Remove heat shield (23k) from steering gear

 Bolt connecting heat shields to steering gear

*BA46.20-P-1012-01F

18

Disconnect electrical connector from quantity control valve

With speed-sensitive power steering, code 213

19

Detach steering coupling (25) from rack-and-pinion steering (23)

 Self-locking bolt, steering coupling to rack-and-pinion steering

*BA46.10-P-1002-01E

20

Remove oil line retaining plate (23s) from rack-and-pinion steering (23) and pull out hydraulic lines

 Before opening the hydraulic circuit of the rack-and-pinion steering, thoroughly clean the surrounding area of the separation point. Even the smallest particles of dirt, introduced into the hydraulic components, can lead to malfunctions of the rack-and-pinion steering.

 Collect hydraulic fluid which flows out in vessel and seal off connections with plugs.

 Installation: Replace O-rings.

 Bolt, oil line retaining plate to rack-and-pinion steering

*BA46.20-P-1001-01F

 Set of stop plugs

*129589009100

21

Detach hydraulic line from front axle carrier

22

Prop front axle carrier (1) with telescoping lifter, transmission lifter and transmission platform for passenger cars

AR33.10-P-0100-03T

Telescopic transmission jack

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

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

23

Remove engine mount bolts (1g) at right and left from front axle carrier (1)



*BA22.10-P-1002-03A

24

Remove front axle carrier bolts (1f)

 The bolts are self-tapping, so the following points should be noted:

 Never retap the thread in the side member

 Replace bolts

 Use only original bolts (4 x)

 When screwing bolts in, do not
position on a slant

 Do not use an impact wrench

 Observe tightening torque

 Installation: Before tightening the bolts (1f) align the front axle carrier (1) using  drift (Ø 11.7 mm) at right and left. After this, insert rubber plugs.

 Drift set

*220589001500

 Bolt, front axle carrier to longitudinal member

*BA33.10-P-1005-01A

25

Lower front axle

26

Remove front suspension struts

With steel suspension

AR32.25-P-1017T

With AIRmatic (semi-active air suspension), code 489

AR32.25-P-1017TW

27

Remove upper control arm (6)

 Only if required.

AR33.20-P-0500TA

28

Check front axle for signs of damage

 Replace damaged parts with new parts.

29

Install in the reverse order

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it moving off. Wear closed and close-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

30

Fill power steering pump and bleed

Engine 112, 113, 642

AR46.30-P-0010P

Engine 272, 273

AR46.30-P-0010TS

31

Activate SBC brake system using STAR DIAGNOSIS

Vehicles with SBC brake system

32

Use STAR DIAGNOSIS to move brake pads toward brake disks

Vehicles with SBC brake system

33

Inspect rack-and-pinion steering for leaks

34

Perform wheel alignment check

AR40.20-P-0200T

Number

Designation

Model
211
with 4 MATIC

BA22.10-P-1002-03A

Front engine mount on front axle carrier

Nm

35

Number

Designation

Model
211.08/09/
28/29

BA32.20-P-1002-02B

Self-locking nut, connecting rod to torsion bar

M10

Nm

-

M101.5

Nm

-

M121.5

Nm

95

M141.5

Nm

-

Number

Designation

Model
211.08/
09/28/29

BA32.25-P-1012-04B

Nut of shock-absorber strut to transverse control arm

Nm

162

Number

Designation

Model 211.08/09/ 28/29

BA33.10-P-1005-01A

Bolt, front axle carrier to longitudinal member

Nm

120

Number

Designation

Model
211.08/09/ 28/29

BA33.20-P-1018-01A

Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle

Stage 1

Nm

20

Stage 2

°

90

Number

Designation

Model
211.08/09/
28/29

BA33.30-P-1003-02C

Collar bolt, front axle shaft to front axle shaft flange

Stage 1

Nm

70

Stage 2

°

90

Number

Designation

Model
211.08/
09/28/29

BA46.10-P-1002-01E

Safety screw and steering coupling locknut to rack-and-pinion steering

Nm

18

Number

Designation

Model
211.08/
09/28/29

BA46.20-P-1001-01F

Bolt, oil line retaining plate to rack-and-pinion steering

Nm

20

BA46.20-P-1012-01F

Bolt, heat shields to steering gear

Nm

7.5

Number

Designation

Order number

BR00.45-Z-1002-06A

Antifriction paste, rubber parts 2.5 kg, DB supply specification 6867.00

A 000 989 01 60