Leak Testing the Sun Roof

Sun roof, leak test

Special tools:
115 8957 HOSE PLIERS 115 8957 Hose Pliers

As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information in the illustrations is always correct.
If any work that may effect the sun roof seals has been carried out, it must be checked.

Remove:
- the A-post panel. See Panel A-post, replacing Panel, A-Post, Replacing
- the C-post panel. See Panel C-post, replacing Panel, C-Post, Replacing.




Seal the drainage hoses and pour water into the sun roof base plate.
The front hoses are between the A-post and the front edge of the sun roof. The best way to seal the hoses is by clamping them using special tool 115 8957 HOSE PLIERS 115 8957 Hose Pliers.
The rear hoses are inside the C-post panel. Seal the hoses by clamping them using special tool 115 8957 HOSE PLIERS 115 8957 Hose Pliers.

After work involving the removal of the drainage frame, carry out the following test:
1. Test both the gutters for leaks at the front and rear edges before installing them in the car
2. Install the sun roof base plate in the car and connect the drain hoses
3. Check that all seals are intact. Install other components so that the entire sun roof is complete
4. Seal the drains as above
5. Check for leaks
6. Remove the hose clip and sealant
7. Check that the drains function.