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Old 10-28-2011, 09:14 AM   #7
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Join Date: Oct 2010
Location: Silver Spring, MD
Posts: 1,459
My Ride: 1999 323i 5-SPD
Yea, the thermostat is pretty straightforward. A bit more challenging if you have an auto, only cause you have to use a 32mm wrench to get the fan off first. Otherwise pretty simple.

Check for oil, should be pretty easy. If you are smelling something, it may be oil dripping onto the exhaust manifold. When facing the car from the front bumper, look to the left side of the engine (passenger side) and look on the metal heat shield. If there is oil all over it, that may be your culprit.

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