E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Check Engine Light

Old Jun 25, 2005 | 01:47 PM
  #1  
dizzybonez's Avatar
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400 E
Check Engine Light

Whats the first thing to look for when the check engine light comes on?
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Old Jun 27, 2005 | 07:03 PM
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91 300E
My check engine light just came on a week ago or so and was intermittent. I was going to call the shop tomorrow about it but the car actually died on me en route home from work today.

Typically the first thing to check is the 02 sensor.

I guess the book is right when it says bring it to the shop as soon as possible...blah
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Old Jun 27, 2005 | 09:21 PM
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2001 E-430 4-Matic
Don't Overfill the Gas Tank

When filling up, don't top off. Also, make sure the gas cap is reinstalled properly. If you did top off, or the gas cap was loose, the light will shut off in a few days of driving (or so I've heard).
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Old Jun 27, 2005 | 10:42 PM
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some
Originally Posted by livetodrive
When filling up, don't top off. Also, make sure the gas cap is reinstalled properly. If you did top off, or the gas cap was loose, the light will shut off in a few days of driving (or so I've heard).

not on the 124s, they wernt that smart yet

Mark
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Old Jun 27, 2005 | 10:46 PM
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91 300E
yeah j00r damn right...when my car broke i cursed it and informed it that it was really stupid and self centered.
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Old Jun 28, 2005 | 02:46 PM
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is the o2 sensor easy to get to?

replacing the o2 sensor easy to do?
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Old Jun 29, 2005 | 08:11 PM
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from what i understand yes...it's about a $150 part....I havent had the work done yet so I cant say for sure how easy or hard...i need to do my head gasket and some toher stuff first.
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