[Tomnavigator]

Please let me know where the rear sunroof drains exit the car. The sunroof drains usually plug up right where they exit the car because the exit fitting is a flapper that easily plugs up. I searched the forum for sunroof leaks and get mixed information on where the drain comes out because I cannot find a posting for a 335d. I found three different locations for other cars and don't want to take the whole car apart looking.
I know the problem is a plugged sunroof drain because I found the front drains plugged after my wife told me both front and rear passenger side floorboards soaking wet.
I cleaned out the front drains but cannot find where the rear drains come out and can not see a way to clean the rear drains from above.
Thanks in advance for your help.

[montr]

The rear drains come out inside the rear fenders. Remove the battery trim cover, you will see a semi circle cutout in the acoustic material. Behind it, there is the drain tube. You can pull it up and out to clean it. Same opposite location on the other side. You need to remove the trim to access it.

If you want to clean it from above, you need to remove the trim between the shelf and the headliner. Next you need to remove the grab handle on both side and the trim around the top rear brake light. This allows you to drop the rear of the headliner and give you enough room to unplug the two drain tubes.

I cleaned mine by injecting degreaser in all the tubes, front and back, and followed by compressed air.