Remove/install lower wishbone

AR33.20-P-0510ME

Remove/install lower wishbone

20.03.2020

Model

167

Modification notes

13.03.2020

Pressure release of air suspension changed.

Operation step 2

13.03.2020

"Pressure release of electrohydraulic suspension", changed.

Operation step 3

Shown on left side of vehicle

1

Transverse control arm

4

Nut

7

Nut

2

Nut

5

Nut

8

Screw

3

Pin

6

Screw

9

Supporting joint

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Information on E-ACTIVE BODY CONTROL suspension

AH32.50-P-0002-01ME

Topical note

Notes on air suspension

AH32.22-P-1000-01T

Notes on safety-relevant components

AH00.00-Z-0019-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A

 

Remove/install

1

Remove corresponding front wheel.

AR40.10-P-1102ME

2

Transfer the pneumatic pressure of the suspension strut into the central reservoir using the diagnostic system.

Model 167
with code 489 (AIRMATIC)
except code 490 (Electrohydraulic suspension)
Model 167
with code 489 (AIRMATIC)
with code 490 (Electrohydraulic suspension)



AD00.00-P-2000-06ME


The complete wheels must not touch the ground.
Otherwise the suspension struts may suffer initial damage and malfunction at a later stage.

 Select menu item "Actuations" in active suspension and damping system control unit.

 Installation: Transfer pneumatic pressure out of the central reservoir into the suspension strut using the diagnostic system.

3

Drain the hydraulic pressure lines of the electrohydraulic suspension using guided diagnosis.

Model 167
with code 489 (AIRMATIC)
with code 490 (Electrohydraulic suspension)

AR32.50-P-0042ME


The complete wheels must not touch the ground.
Otherwise the suspension struts may suffer initial damage and malfunction at a later stage.

 It is essential for shutoff valves on suspension strut to be closed.

4

Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).

5

Remove center and rear engine compartment lining.

AR61.20-P-1105ME

6

Remove torsion bar linkage from stabilizer bar.

Model 167
except code 489 (AIRMATIC)
except code 490 (Electrohydraulic suspension)
Model 167
with code 489 (AIRMATIC)
except code 490 (Electrohydraulic suspension)

AR32.35-P-3330ME

 Remove torsion bar linkage carefully; stabilizer bar is under tension.

 Bolt, stabilizer rod to stabilizer

*BA32.35-P-1002-02D

7

Remove nut (2) and remove bolt (3).

 Installation:
Tighten nut (2) lightly by hand. Apply final torque only after the vehicle is on the measuring platform or when the vehicle is in a neutral position.
Otherwise, the elastomer bearing will be stretched.

 Self-locking nut, shock absorber to wishbone

*BA32.25-P-1002-01O

8

Remove nut (4) and remove lock plate.

 Ensure that the lock plate placed behind it does not fall out.
Counterhold nut over supporting joint (9) with suitable tool.

 Locking slotted nut, supporting ball joint to steering knuckle

*BA33.20-P-1005-01W

 Socket wrench

*167589000900

9

Remove nut (5) at rear elastomer bearing and remove screw (6).

 Installation:
Tighten nut (5) lightly by hand. Apply final torque only after the vehicle is on the measuring platform or when the vehicle is in a neutral position.
Otherwise, the elastomer bearing will be stretched.

 Nut, lower transverse control arm to front axle carrier

*BA33.20-P-1004-01W

10

Remove nut (7) at front elastomer bearing and remove screw (8).

 Installation:
Tighten nut (7) lightly by hand. Apply final torque only after the vehicle is on the measuring platform or when the vehicle is in a neutral position.
Otherwise, the elastomer bearing will be stretched.

 Nut, lower transverse control arm to front axle carrier

*BA33.20-P-1004-01W

11

Remove lower transverse control arm (1) with supporting joint (9).

12

Check supporting joint (9) for damage.

If there is a problem,



Replace supporting joint (9).

AR33.20-P-0440ME

 Self-locking nut, supporting joint to lower transverse control arm

*BA33.20-P-1003-01W

13

Install in the reverse order.



Measure

14

Perform chassis alignment.

AR40.20-P-0200ME

 Front axle shock absorber

Number

Designation

Model 167

BA32.25-P-1002-01O

Self-locking nut, shock absorber to wishbone

Stage 1

Nm

100

Stage 2

°

180

 Front axle stabilizer bar

Number

Designation

Model 167
except code 490 (Electrohydraulic suspension)

BA32.35-P-1002-02D

Bolt, stabilizer rod to stabilizer

Stage 1

Nm

80

Stage 2

°

90

 Wheel control, hub

Number

Designation

Model 167

BA33.20-P-1003-01W

Self-locking nut, supporting joint to lower transverse control arm

Stage 1

Nm

120

Stage 2

°

45

 Wheel control, hub

Number

Designation

Model 167

BA33.20-P-1004-01W

Nut, lower transverse control arm to front axle carrier

Stage 1

Nm

100

Stage 2

°

180

 Wheel control, hub

Number

Designation

Model 167

BA33.20-P-1005-01W

Locking slotted nut, supporting ball joint to steering knuckle

Stage 1

Nm

120

Stage 2

°

45