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Registered
1983 300 SD; 2000 E320
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1,099 Posts
Discussion Starter · #1 ·
When I use a/c or heat I sometimes get a burnt smell coming thru. The systems work fine, with no unusual noises. This happens at all fan speeds.

Any suggestion?
 

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Registered
1989 560SEL
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2,110 Posts
could be oil, coolant, or transmission fluid burning in the engine compartment and coming in through the vents. i'd start by opening the hood the next time you smell something coming through the vents and checking to see if you can also smell it in the engine compartment. any leaks you're aware of?
 
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