2006 325i Water leak into trunk battery compartment.

JoshS98 · 09-24-2024, 08:14 PM

Hey y’all hoping someone has some idea where this water is coming from.

Alternator died, had it rebuilt and they said it looked like it failed due to being overworked. No idea if that could be caused by this, would be nice to know that too

Was replacing battery as well and noticed it was slightly damp when pulling it out.

There wasn’t any standing water but some signs of it in the past. Current situation was more like the battery was outside and had the smallest amount of morning dew on it.

Started looking more and noticed this trail of what seems to be rust coming down the far side of the battery compartment.

Live in the PNW and we’re gonna start getting more and more rain so hoping to figure this out asap.

Car was well taken care of by single previous owner but he did have it parked for 4 years during Covid under a tree so tons of these rubber seals are moldy and falling apart.

First thought was tail light gaskets but those would be at the front of the battery compartment.

I tried pulling back the carpeting but couldn’t find how to release it.

Any help is greatly appreciated

StradaRedlands · 09-24-2024, 08:23 PM

If not the taillight gaskets, then the rear sunroof drains.

E93Dude · 09-24-2024, 10:14 PM

Its always the fucking sunroof/convertible top drains on these things…….

09-24-2024, 08:14 PM	#1
JoshS98 Enlisted Member 8 Rep 55 Posts Drives: 2006 325i Join Date: Jul 2024 Location: BC iTrader: (0)	2006 325i Water leak into trunk battery compartment. Hey y’all hoping someone has some idea where this water is coming from. Alternator died, had it rebuilt and they said it looked like it failed due to being overworked. No idea if that could be caused by this, would be nice to know that too Was replacing battery as well and noticed it was slightly damp when pulling it out. There wasn’t any standing water but some signs of it in the past. Current situation was more like the battery was outside and had the smallest amount of morning dew on it. Started looking more and noticed this trail of what seems to be rust coming down the far side of the battery compartment. Live in the PNW and we’re gonna start getting more and more rain so hoping to figure this out asap. Car was well taken care of by single previous owner but he did have it parked for 4 years during Covid under a tree so tons of these rubber seals are moldy and falling apart. First thought was tail light gaskets but those would be at the front of the battery compartment. I tried pulling back the carpeting but couldn’t find how to release it. Any help is greatly appreciated Attached Images Last edited by JoshS98; 09-24-2024 at 08:15 PM..
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09-24-2024, 08:23 PM	#2
StradaRedlands Brigadier General 6106 Rep 3,650 Posts Drives: 2006 BMW 330i MT Join Date: Dec 2021 Location: SoCal iTrader: (2) Garage List 2006 BMW 330i [8.25] 2009 BMW 328i Touri ... [8.00] 2013 BMW X5 35i [7.80] 2011 BMW 528i [8.70] 2006 Mazda3 [5.50]	If not the taillight gaskets, then the rear sunroof drains.
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09-24-2024, 10:14 PM	#3
E93Dude Lieutenant 389 Rep 444 Posts Drives: 2007 E93 MT6 Join Date: Sep 2018 Location: The Old Dominion iTrader: (0) Garage List 2007 BMW E93 [0.00]	Its always the fucking sunroof/convertible top drains on these things……. __________________ BMW: Doing Amazing(ly cheap) Things With Plastic (crap) Since the E90...
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