Remove/install front section of Vario roof

AR77.50-P-3100G

Remove/install front section of Vario roof

28.5.10



Remove

1

Remove paneling from front Vario roof

AR68.30-P-4350G

2

Remove C-pillar paneling from Vario roof

AR68.30-P-4500G

3

Align installation position with roof switch

 Leave ignition switched on. DAS

Vario roof remains in this position for 7 minutes when the roof switch is released (Stop function).When the Vario roof switch is pressed again, this position can be adjusted for another 7 minutes.

4

Press off Bowden cable (2) of front lock

5

Remove circlip (3) from C-pillar lock and unhook Bowden cable (2)

6

Remove electrical lines and hydraulic lines from Vario roof at front together with retaining clamps.

 Do not disconnect lines from brackets

7

Switch off ignition, remove lock from Vario roof at front and lay down next to the passenger seat

 Maintain assembly position during removal.The bolts can be unscrewed more easily when the ignition is switched off, since the lock can no longer be tensioned

AR77.33-P-3400G

8

Lay front Vario roof down manually on crossmember above windshield

9

Press Vario roof downward in area of roof separation until the

Slide valve (4) on the C-pillar lock is located in the eccentric (5)

10

Mark position of bracket (7) when reusing same roof

11

Unscrew bolts (6) from bracket (7), remove any spacer (8) present and lift front Vario roof

 Do not mix up spacers (8)



Install



When replacing the front Vario roof, preinstall stop buffer (9) and retaining clamps (10), because this is no longer possible when the roof is installed

12

Preinstall front Vario roof (1)



*BA77.33-P-1009-01A

13

Position front Vario roof, position bolts (6), install spacers (8), align front Vario roof in relation to A-pillar and C-pillar and tighten bolts (6).



*BA77.33-P-1008-01A

14

Open emergency operation valve(N) on hydraulic unit to stop with 6 mm Allen wrench

 Open emergency operation valve only with roof put down or closed and ignition switched off to avoid damaging the seal on the emergency operation valve (N) which would prevent pressure from building up in the system.

15

Unhook retracting spring (11) from C-pillar lock and slide slide valve (4) upward

16

Move Vario roof to assembly position by hand

17

Install lock on front Vario roof



 Position all bolts, lock lock with 6 mm Allen wrench and unlock againHold lock in unlocking direction and tighten bolts first outside and then in center

*BA77.33-P-1001-01A

18

Install electrical lines and hydraulic lines on front Vario roof

19

Install Bowden cable (2) in C-pillar lock and hook in retracting spring (11)

When hooking in retracting spring (11), ensure that grommet on the Bowden cable (2) is located in the bracket (2).

20

Install Bowden cable (2) on front lock

21

Close emergency operation valve (N) on hydraulic unit



*BA77.37-P-1001-01A

22

Carefully close Vario roof with roof switch and lock completely

23

Install seal on front Vario roof at side

AR77.50-P-4200G

24

Check gap between front Vario roof and rear Vario roof with feeler gage, if necessary correct front Vario roof



 Unlock front lock to correct

AR60.00-P-0700-01G

Dimensions

*BE60.00-P-1006-01A

25

Check gap between Vario roof and crossmember above windshield, adjust gap if necessary



AR77.50-P-3035G

AR60.00-P-0700-01G

Dimensions

*BE60.00-P-1006-01A

26

Adjust stop buffer (9) on Vario roof

AR77.50-P-3050G

27

Check Vario roof contour



 Correct height offset on separation joint between front Vario roof and rear Vario roof with spacers (8) below

bracket (7)

AR77.50-P-3040G

28

Check adjustment of catch on C-pillar

AR77.50-P-3045G

29

Install paneling at front of Vario roof

AR68.30-P-4350G

30

Install paneling at C-pillar on Vario roof

AR68.30-P-4500G

31

Perform rain test

Number

Designation

Model
170

BE60.00-P-1006-01A

Gap dimension

Roof to windshield frame

Dimension "S"

mm

9.0 (+0/-2)

Roof to rear window frame

Dimension "T"

mm

7.0 (+0/-2)

Fig., see

AR60.00-P-0700-01G

Number

Designation

Model
170

BA77.33-P-1001-01A

Bolts, catch to Vario roof

Nm

10

BA77.33-P-1008-01A

Bolts, bracket to roof halves

Nm

22

BA77.33-P-1009-01A

Bolts, bracket of Bowden cable to front roof half

Nm

8

Number

Designation

Model
170

BA77.37-P-1001-01A

Emergency operation valve (N) on hydraulic unit

Nm

3

Fig., see

AR77.50-P-3100G