Replace shock absorber mount on lower wishbone

AR32.25-P-0107ME

Replace shock absorber mount on lower wishbone

20.03.2020

Model

167

except code 489 (AIRMATIC)

except code 490 (Electrohydraulic suspension)

Model

167

with code 489 (AIRMATIC)

except code 490 (Electrohydraulic suspension)

Modification notes

12.03.2020

Pressure release of air suspension changed.

Operation step 2

Shown on right side of vehicle without code 489 (AIRMATIC) and without code 490 (Electrohydraulic suspension)

1

Shock absorber mount

6

Lower control arm

2

Screw

7

Nut

3

Stabilizer bar linkage

8

Upper transverse control arm

4

Stabilizer bar

9

Nut

5

Screw

10

Steering knuckle

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

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

Notes on air suspension

AH32.22-P-1000-01T

Evaluation of elastomer bearings

AH00.10-P-0001-01A

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 front left or right wheel and tire assembly.

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)



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.

3

Remove screw (5) and remove torsion bar linkage (3) from stabilizer (4).

 Bolt, stabilizer rod to stabilizer

*BA32.35-P-1002-02D

4

Relieve threaded connection of shock absorber on lower control arm (6) and release.



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B



000 588 10 62 00 Support plate

WS26.00-P-3309B

5

Remove nut (7) and remove screw (2).

 Self-locking nut, shock absorber to wishbone

*BA32.25-P-1002-01O

6

Remove nut (9) and remove steering knuckle (10) from upper transverse control arm (8).

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

*BA33.20-P-1001-01W

7

Secure steering knuckle (10) against tipping over using suitable means.

8

Lower the lower control arm (6) until the shock absorber mount (1) is accessible.



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B



000 588 10 62 00 Support plate

WS26.00-P-3309B

9

Press out shock absorber mount (1) toward front.


Do not exceed a pressure of 140 bar.
Otherwise, the shock absorber mount (1) will be damaged.

 Installation: Press in shock absorber mount (1) from front to back.
Observe marking.

Mobil Vacuoline 137 insertion agent, 0.5 l

*BR00.45-Z-1097-06A

 Sleeve

*167589001400

 Threaded spindle

*652589003311

 Extraction/insertion tool

*164589004300

 Hollow cylinder

*652589003322

 Hydraulic hose (complete)

*652589003323

 Hand pump

*652589003321

10

Thoroughly clean bearing surfaces of shock absorber mount (1) on lower control arm (6) and check for damage.

If damage is present,



replace lower control arm (6).

AR33.20-P-0510ME

11

Install in the reverse order.

 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-1001-01W

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

Stage 1

Nm

75

Stage 2

°

45

Repair materials

Number

Designation

Order number

BR00.45-Z-1097-06A

Mobil Vacuoline 137 insertion agent, 0.5 l

A 000 989 18 60 09