Why would the car put out a smell like eggs ( sulphur) when speeding on a highw on 2003 Mercedes-Benz SL500

When speeding on highway the car puts out a smell like sulphur. Why would this happen?

by in North Richland Hills, TX on October 27, 2011
1 answer 1 comment
ANSWER by on October 27, 2011
You have a very rich running car, most likely you have a check engine light on too, yes? Have your car inspected by a good German car shop ASAP.
COMMENT by on March 14, 2012
Thank you for your response to the comment I wrote in Oct. Coincidentally, I put my Mercedes SL500 in a German shop as you suggested because the " check engine light " recently came on . Have spent over 5 grand in less than a year. Love the car but seriously considering whether to buy an ESA or trade it in .

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