1996 C 220 Questions - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 02-06-2009, 11:55 AM Thread Starter
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Date registered: Feb 2009
Vehicle: 1996 C 220
Location: Omaha, NE
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1996 C 220 Questions

I purchased a 1996 C 220 from the original owner with 80k miles on about 3 weeks ago. Great car other than the "rotten egg smell" recently. I put in premium gas only from BP or Phillips 66 and the battery was replaced with a new Interstate battery the day before I bought it. Any thoughts on what this could be?

Also there seems to be a noise coming from the rear view mirror area, almost like a fan whirring. Any thoughts? I appreciate any help or advice you can give. Thanks!

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post #2 of 2 (permalink) Old 02-06-2009, 12:33 PM
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The noise is the aspirator motor, it's part of the acc system. Its a fan that draws in car air in over a temperature sensor.
The egg smell is the catalytic converter either after hard driving or cold start up. If it continues have someone check it for you.
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