Remove/install hydraulic unit

AR77.37-P-3500W

Remove/install hydraulic unit

27.7.11

 

Remove/install

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 Vario roof assembly work

AH77.30-P-0002-01R

1

Open Vario roof fully

2

Completely move front seats and backrests toward front

3

Switch off ignition

4

Remove draft stop or left right glass draft stop (1) and associated brackets from roll bars

 Glass wind draft (1) only on vehicles with code (288) AIRCAP)

5

Remove center speaker cover (2)

6

Remove left and right speaker cover with belt guide (3) and allow to hang on seat belt.

7

Remove cross member paneling (4)

8

Remove left and right coat hanger hooks (5)

9

Remove pocket (6) from rear wall cover (7)

10

Remove left and right cover (8) from rear wall paneling (7)

11

Fold rear wall paneling (7) toward front until cross member cover (9) can be removed

12

Remove crossmember cover (9) and lay down toward front with electrical lines connected

Rechargeable drill / screwdriver

gotis://G_58.0_01.1



*BA77.30-P-1001-01E

13

Fold up insulating mat (10) and secure against folding down

 Installation:Before folding down insulating mat (10), check oil level of Vario roof actuation hydraulic unit (A7/5), correct if necessary.
See: 

Check oil level Vario roof actuation hydraulic unit (A7/5), correct if necessary

AR77.37-P-3501W

14

Unclip hydraulic wiring harnesses (11) from Vario roof crossmember (12)

15

Open cable ties (13) and disconnect electrical connector (14)

16

Unhook Vario roof actuation hydraulic unit (A7/5) from rubber mounts (15) and turn until the connections on the hydraulic cylinders are accessible

17

Disconnect hydraulic lines from Vario roof actuation hydraulic unit (A7/5)

 For this purpose the vehicle interior must be covered. Otherwise the vehicle interior can be soiled with hydraulic fluid running out.

AR77.37-P-1000-04V



*BA77.37-P-1001-01A



*BA77.37-P-1002-01A

 Set of stop plugs

*129589009100

18

Remove Vario roof actuation hydraulic unit (A7/5) from vehicle

19

Install in the reverse order

Number

Designation

Model 172

BA77.30-P-1001-01E

Bolt, cover to Vario roof cross member

Nm

6

Number

Designation

Model
172

BA77.37-P-1001-01A

Emergency operation valve at hydraulic unit

Nm

2.5

See picture

-

BA77.37-P-1002-01A

Bolt, connection plate to hydraulic unit

Nm

4