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  #1  
Old 01-04-2011, 08:20 PM
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Blink code help request - 1988 300ce.

1988 300CE CEL on: #4 light blinks 5 times. I've scoured Tech Help and can't find any clue. Suspect O2 sensor, as exhaust is very rich smelling.

Thanks for any assistance.
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  #2  
Old 01-04-2011, 10:58 PM
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Try this link and see if you find what you're looking for.
http://www.mbslk.de/files/artikel/r170_fehlercodes.pdf
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  #3  
Old 01-12-2011, 10:54 AM
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Smile

Thanks for the good info, lsmalley. Based on the code book link you provided, I bought a Bosch O2 sensor and installed it last night. CEL is now off, and the exhaust smells like it could pass emissions tests again. Start up is now immediate and the m103 settles into a solid idle at ~650.

Solving a CEL for <$100 makes me happy!

Last edited by gld1203; 01-12-2011 at 11:06 AM.
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Old 01-12-2011, 11:25 AM
Rebe
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Where do you get the build or buy information to get a code reader for the Mercedes that didn't have the factory test module with the red light already there. Oh! Not trying to high jack the thread.
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Old 01-13-2011, 01:34 AM
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Quote:
Originally Posted by gld1203 View Post
Thanks for the good info, lsmalley. Based on the code book link you provided, I bought a Bosch O2 sensor and installed it last night. CEL is now off, and the exhaust smells like it could pass emissions tests again. Start up is now immediate and the m103 settles into a solid idle at ~650.

Solving a CEL for <$100 makes me happy!
you are welcome......now if I can just clear my own CEL.
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  #6  
Old 01-13-2011, 04:05 AM
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Answer

Quote:
Originally Posted by Rebe View Post
Where do you get the build or buy information to get a code reader for the Mercedes that didn't have the factory test module with the red light already there. Oh! Not trying to high jack the thread.
Post#5 in the following link.


560SL diagnostic port/tool
560SL diagnostic port/tool






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