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Old 01-02-2013, 07:08 AM
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doru doru is offline
Officially Welcomed to the 'Fest
Location: Calgary
Join Date: Sep 2007
Posts: 4,666
Mein Auto: 2003 530iA
Maybe a plastic part is not seated properly, or has deformed in time, and in cold weather it's somehow contracted, creating an unwanted "vortex' where 2 pieces should mate, and now they're leaking?

Try to open the hood and double check both boots that go from the cabin filter into the firewall. I know one boot on my car lost one of the claws (embrittlement), and on another occasion, the other one wasn't mounted properly fogging up the passenger window every time I was in a car wash. Nobody could figure out the problem. Made also a weird sound.

Part #7 in this pic:

Looking for a DIY? Parts? Check this out, it might be your ticket
TMS underdrive pullies - Stewart WP - PSS9 - Beisan Vanos seals - Zimmerman cross-drilled & Akebono Euro - Deka 649 MF - 55w HID headlights - 35w HID foglights - Hualigan double din - ACS (rep) alu pedals - Euro central storage console - Breyton Magic Racing staggered wheels - M5 bumper - M5 steering wheel - Tint
Stable: e39, e53, e46 & Tribby

Last edited by doru; 01-02-2013 at 07:10 AM.
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