1996 S320 check engine light is on and the car smells like the cat converter is running hot, or has that sulpher smell. The local MB tech said it was probably just fuel additives and not to worry. He said the codes were not anything major, cancelled the light and it came back on 10 miles later. The car runs fine but I cant stand the light, any suggestions?????

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83 240D 250K
95 S320 85K
81 Rabbit D 185K
01 Ram 2500/Cummins 125k
36 Chev 52 K

better ask you tech about the code messages.

TAKE IT BACK AND tell them that having the CHECK ENGINE light is NOT normal and you WANT TO KNOW WHAT CODES are coming up!!!

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

Sounds like the converter is clogged!!!

What kind of tech resets the code and ignores it???

I am glad he doesn't work at a nuclear power plant console!!!

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

I am wondering if this tech even knows how to retrieve the codes and even understand what they mean.