S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

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Old Sep 2, 2003 | 10:42 AM
  #1  
solhood's Avatar
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1994 Mercedes Benz S 500
check engine light

Recently the check engine light came on in my 94 S500 (125,000), my mechaninc told me it was the crankshaft position sensor. $300 later the light was gone and 3 days later the light is on again. Any suggestions, could this be the same thing, or something new?
REH
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Old Sep 2, 2003 | 05:05 PM
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99bmw740il's Avatar
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From: Newport Beach, CA
2006 Mercedes E350 Sport
Probably an o2 sensor. I have been drving with that goddamn service engine soon (check engine) light for 3 weeks! Im gonna put electrical tape over it. O2 sensors are mfg by bosch and run about $65 at autozone, my car has 4 yours probably has one or two. Thats because you have an obd1 computer and mines obd2
Its nothing urgent though
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