problem... help!
Thread Starter
Member
Joined: Sep 2002
Posts: 127
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From: Dix Hills, NY (soon to be Orange County, CA)
2000 Mercedes S500
problem... help!
when i drive at high speeds or when i floor the car and let go i smelled something similar to rotten eggs. i looked behind me and i saw a decent amount of smoke, maybe light grey or yellow? can anyone help me out or tell me what to do to get this fixed? also, how do i tell mercedes? (since it's still under warrantee) because I can't exactly tell them i have a problem with my car each time i drive it 100 mph...
thanks for your help
thanks for your help
MBWorld Fanatic!
Joined: Mar 2003
Posts: 3,445
Likes: 3
From: WOT somewhere in the Bay Area
1951 Caterpiller D6
Rotten egg smell is sulfur oxides being converted to hydrogen sulfides by the Catalytic Converters. Sulfur builds up in the Cats during lean conditions and is converted under rich conditions. A little smell after hard driving is normal. A lot is not. Report it to the dealer so they can check the engine paramaters. It could be caused by a bad O2 sensor or other device rendering an over rich condition.
There is a remote chance that the brand of gasoline you buy is unusually high in sulfur. Try changing and testing again after a few tanks.
There is a remote chance that the brand of gasoline you buy is unusually high in sulfur. Try changing and testing again after a few tanks.
