E46 Sporadic Exhaust Smell In Cabin - Bimmerfest - BMW Forums

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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 12-20-2013, 03:14 PM
ajh91481 ajh91481 is offline
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Location: PA
Join Date: Feb 2012
Posts: 6
Mein Auto: 330XI
E46 Sporadic Exhaust Smell In Cabin

I have a 2003 330xi with 95k miles on it. Recently, I have been noticing a distinct exhaust smell in the cabin of the car. It seems to occur only when stopped at lights and not when the car is moving. It is sporadic as it is very prevalent on some rides and does not exist on others. I am able to change the thermostat to recirculate the air to remove the smell for temporary relief.

A little history - the car used to burn oil and I had to top off frequently. This problem was never truly fixed but somehow went away after my last oil change. I am worried that the problem has just moved elsewhere.

Any advice or potential solutions are appreciated. The car has been running up increasingly larger repair/maintenance bills and a big issue like this concerns me.

Thank you.
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