Remove/install seal at front of Vario roof on side

AR77.50-P-4200W

Remove/install seal at front of Vario roof on side

11.10.12

MODEL

172.4

Modification notes

11.10.12

Replace seal, added

Operation step 2

11.10.12

"Butyl routing changed" added

Operation step 4

11.10.12

"Coat sealing lips with rubber assembly 1 l lubricant" added

Step 5

1

Seal

4

Vario roof front section

9

C-pillar seal

2

Screw

5

Butyl cord

c

Installed dimension

3

Screw

8

A-pillar seal

X

Direction of travel

1

Seal

4

Vario roof front section

6

Sealing lips

7

Retaining rail

 Danger !

Risk of injury caused by body parts being trapped or crushed when working on a partially open Vario roof (in stop mode) or in its closing area as a result of the Vario roof suddenly collapsing

Secure Vario roof with a suitable special tool.

AS77.50-Z-0001-01A



Remove

1

Move Vario roof to intermediate position with Vario roof control switch and secure

AR77.50-P-3000-01W

 Support

*230589046300

 Support

*231589026300

2

Unscrew bolts (2, 3) and remove seal (1)


Install new seal (1).
Otherwise leakage is possible.



Clean

3

Remove sealant residues from sealing surface on Vario roof front section (4) and thoroughly clean sealing surface


Sealing surface must be free of grease and dust.
Otherwise leakage is possible.

 Observe flash-off time for cleaning agent.

Cleaner

*BR00.45-Z-1025-04A



Install

4

Lay butyl cords (5) down on new seal (1) as shown. In the process wind the butyl cords (5) up to form a ball


Do not touch butyl cords (5) with bare fingers.
Contact points on seals (1) for the butyl cords (5) must be free of grease and dust.
Otherwise leakage is possible.

 The length of the butyl cords (5) is 2 cm.

Rear window sealing profile

*BR00.45-Z-1084-01A

5

Coat sealing lips (6) with lubricant

Lubricant, rubber assembly 1 l

*BR00.45-Z-1010-06A

6

Position seal (1) on Vario roof front section (4) and clip sealing lips (6) into retaining rail (7)

 First insert sealing lips (6) in area (A) and press in in area (B) with  assembly wedge.
Observe installation dimension (c) of approx. 27 mm.
Do not damage butyl cords (5).

 Mounting wedge

*110589035900

7

Tighten screw (2)

8

Tighten screw (3)

9

Remove support for securing intermediate position and close Vario roof completely with Vario roof actuation switch

10

Check whether seal (1) is seated correctly

 Do not tuck seal (1).
Sealing lips (6) should be positioned over the entire length of the retaining rail (7).
The seal (1) must make uniform slight contact with A-pillar seal (8) and C-pillar seal (9).

 Mounting wedge

*110589035900

11

Open Vario roof with Vario roof actuation switch until the seal (1) no longer makes contact with A-pillar seal (8) and C-pillar seal (9)

If the seat of the seal (1) must be corrected.

 Leave ignition switched on. The Vario roof remains in this position for approx. 7 min. in the stop mode. The Vario roof closes automatically after 7 minutes. The stop mode can be increased by an additional 7 min. by actuating the Vario roof actuation switch again.

12

Loosen bolt (2) and pull or tuck seal (1) at corresponding end and ensure that the A-pillar seal (8) is installed correctly

If the seat of the seal (1) must be corrected.

13

Tighten screw (2)

14

Loosen bolt (3) and pull or tuck seal (1) at rear end and ensure that C-pillar seal (9) is pressed on correctly

If the seat of the seal (1) must be corrected.

15

Tighten screw (3)

16

Completely close Vario roof with Vario roof actuation switch

If the seat of the seal (1) must be corrected.

17

Perform rain test

Repair materials

Number

Designation

Order number

BR00.45-Z-1010-06A

Lubricant, rubber assembly 1 l

A 000 989 03 67

BR00.45-Z-1025-04A

Cleaner

A 005 989 19 71

BR00.45-Z-1084-01A

Rear window sealing profile

A 004 989 60 20