Remove/install front hydraulic lines of electrohydraulic suspension

AR32.50-P-0044ME

Remove/install front hydraulic lines of electrohydraulic suspension

21.04.2020

Model

167

with code 489 (AIRMATIC)

with code 490 (Electrohydraulic suspension)

Modification notes

13.03.2020

"Pressure release of electrohydraulic suspension", changed.

Operation step 1

1

Screw

4

Bolts

2

Bracket

5

Bolts

3

Hydraulic pressure lines

 Warning

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

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

AS00.00-Z-0013-01A

Topical note

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

AH00.00-P-0020-01A

Topical note

Information on E-ACTIVE BODY CONTROL suspension

AH32.50-P-0002-01ME

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

Empty hydraulic pressure lines (3) of electrohydraulic suspension using guided diagnosis.

AR32.50-P-0042ME

2

Remove front left or right wheel and tire assembly.

AR40.10-P-1102ME

3

Unscrew screw/bolt (1) from bracket (2).

 Screw, oil pressure line bracket to shock absorber

*BA32.50-P-1005-04A

4

Remove screws/bolts (4).

 The  socket wrench socket is to be used when a special bolt is installed.

 Screw, oil pressure line to shock absorber

*BA32.50-P-1004-04A

 Socket wrench bit

*167589010900

5

Remove lower engine compartment paneling.

AR61.20-P-1105ME

6

Remove bolts (5).

 Screw, oil pressure line to hydraulic pump

*BA32.50-P-1003-04A

 Socket wrench bit

*167589010900

7

Clean area of hydraulic pressure line connections.

 Do not use any cleaning agents or solvents.

8

Remove hydraulic pressure lines (3) of electrohydraulic suspension and seal exposed connections using suitable stop plugs.

 Installation: Replace damaged sealing rings.

 Record plug

*129589009100

9

Collect escaping hydraulic fluid using suitable container.

10

Install in the reverse order.

 Electrohydraulic suspension

Number

Designation

Model 167
with code 490 (Electrohydraulic suspension)

BA32.50-P-1003-04A

Screw, oil pressure line to hydraulic pump

Stage 1

Nm

18

Stage 2

°

45

 Electrohydraulic suspension

Number

Designation

Model 167
with code 490 (Electrohydraulic suspension)

BA32.50-P-1004-04A

Screw, oil pressure line to shock absorber

Stage 1

Nm

18

Stage 2

°

45

 Electrohydraulic suspension

Number

Designation

Model 167
with code 490 (Electrohydraulic suspension)

BA32.50-P-1005-04A

Screw, oil pressure line bracket to shock absorber

M6

Nm

8

M8

Nm

24