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I've been trying to find this out too (for a mark III Golf). The smell's more noticeable in heavy traffic, I sometimes see smoke coming out of the air vents when the air's not switched on, and find condensation on the windscreen.

It seems to be a problem with the cooling system. The coolant leaks onto the engine where it's burnt off. Maybe the heater core?

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โˆ™ 2007-10-02 16:24:34
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Q: What is the cause of a rubber or plastic smell coming from a heater in a 2000 cavalier?
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