[Black_Valkyrie]

Hi - okay. My mystery leak has remained. 2007 E93 335i. Was getting water in rear of vehicle the battery compartment as well as tray above amplifier.

Cleaned all rubber roof drains, gummi pfledge. Added gaskets to bolts on the tail lights. Leak remains on drivers side. Tray above amp is full of water again.

Here is the mystery. Next guess was water between rear roof drain entry and exit but I removed mud flap access and lower drain plug but the plug is unclogged and literally bone dry like no water is getting to the drain.

How do I check that drain system from above? This has me stumped. Like water isnt getting to the lower drain. Thx in advance