Manny

3 minutes ago, str8_6 said:

If it’s anything like the e39 or e92, it could be the door vapor barrier. 
To check, pull the door card off and check to see the seal is still bonded all the way around.
There will be plenty of detail online on how to remove the door card and how to replace the vapor barrier. 

Thanks for your response, but it was water tested and no issues were found. Anything else could go wrong if you can think of?

2 minutes ago, Breaker said:

Possibly blocked sunroof drain is often a culprit 

Thanks for your response. They tested it, but it was fine.

Hi everyone, I new to this forum and I am having some trouble lately with my 730li f02. The rear passenger side carpet gets wet when it rains or I wash my car. Got it checked at BM workshop but they couldn’t find a solution. They dried the carpet and foam and water tested both doors on the left side for vapour barrier seal leakage, but no luck. It is stil the same. Any help with this would be appreciated. Please let me know if someone knows a fix or where I can get it fixed.