I - Noises at Seals of Vario (Hardtop) Roof When Driving

I. Noises at seals of Vario (Hardtop) Roof when driving

Cause:

Sliding action of the seals. Either the coating on the seals is worn or the seals are dirty and/or dry.

Procedure:

Provide Vario roof seals with special sliding oil. Before attempting any adjustments to the roof mechanism or replacing the seals, proceed as follows.

1. Move roof to an intermediate position to gain access to the roof seals.

2. Caution! To help avoid possible personal injury or vehicle damage, secure roof according to WIS document AR77.50-P-3000-01R.

3. Clean all seals which come in contact with the painted metal areas of the roof and body and the upper edges of the side glass using a clean, soft cloth and the window cleaning agent listed below.

4. With another clean, soft cloth, apply the special sliding compound, antifriction oil listed below to the area of the roof seals which contact the painted metal areas of the roof and body and the upper edges of the side glass.

5. Remove support tool (W230 589 04 63 00) according to WIS document AR77.50-P-3000-01R.

6. Actuate roof through the full opening and closing cycle several times.

7. Close roof.

Replacing the seals results in a medium-term remedy only. It is important that the proper sliding action is re-established.

Operational use may result in different rates of wear on the antifriction coating of all rubber seals. Due to the lack of an antifriction coating the seals then tend to make noises at the contact points.