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Mercedes E320 CDi Estate
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Discussion Starter · #1 ·
Could anyone please provide definitive information regarding the protocol used on my Mercedes with respect to Diagnostic Trouble Codes?

My understanding is that in the USA all cars post 1996 by law have had to use OBDII however Europe didn't catch up with this until (for diesel cars) 2004. Since the U.S.A. market was all petrol between 1996 and 2004 most European petrol cars were also OBDII compliant, however I understand there wasn't a U.S.A. diesel market at that time and hence the European diesels did their own thing.

I have a 2001 UK model E320CDi estate with the 38 pin diagnostic plug under the bonnet. There is no 16 pin plug inside the passenger compartment. I would dearly love to know for definite if this car uses EOBD, OBD, OBDII or Mercedes own system.

Many thanks

Adam
 

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1997 E300D
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Adam, I don't know the answer to your question but there were USA market diesels from 1997 to 1999. I own a 97 E300D.

Best,

John Bohn
 

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Mercedes E320 CDi Estate
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Discussion Starter · #3 ·
John,

Many thanks for that information. It gives me a degree of hope that Mercedes in their wisdom would use the same protocol for the European market as they would for the U.S.A. market hence there is a chance mine may be OBDII compliant.
 

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Mercedes E320 CDi Estate
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Discussion Starter · #4 ·
Well I now have a definitive answer 'cause today I bought the mOByDic interface which communicates in all the standard protocols ..... but it doesn't talk to my 2001 European E320 CDi.:crybaby2:

It looks like Mercedes have me by the short & curlies on this which at £90 sterling per hour is a bit painful, particularly since based on past experience I have no confidence in their ability to even change a light bulb!
 
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