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Old 11-01-2002, 12:35 AM
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Location: Toronto, Ontario
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1994 E320 fault codes 2 and 6?

The check engine light just came on my wife's 1994 E320 wagon, so I followed the procedure to read the codes, and 2, 5, and 6 came up. The car has 150,000 KM's and is running and idling fine.

Error code 5, EGR is well documented and I will follow the directions to test and clean.

I cannot seem to find codes 2 and 6 mentioned in the archives. Would someone please id them for me?

Thanks,

John Wells
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Old 11-01-2002, 03:27 AM
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See if this link to Jim F.'s site helps:

http://pages.prodigy.net/jforgione/MB_DM.html

Last edited by bobterry99; 11-01-2002 at 12:11 PM.
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Old 11-01-2002, 09:37 AM
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That is a nice complete list of codes for the Diagnostic Module N59, but it does not say what models or years use that module. Can I assume that the listed fault codes apply to any vehcile?

In that case the fault codes say:
code 2: Heated oxygen sensor inoperative
code 6: Idle speed control inoperative

Thanks,

John
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  #4  
Old 11-01-2002, 01:32 PM
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this page shows the fault codes for your car:

http://www.batauto.com/MB/

It looks like you have the correct info from JimF's page.

Out of curiousity, have you ever replaced your engine wiring harness?
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2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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  #5  
Old 11-01-2002, 01:34 PM
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By looking at the codes, you may have a bad O2 sensor.

Regarding code number 6, your idle speed is controlled by the throttle actuator, which is a very expensive part - about $1,000.

Better hope it's just your O2 sensor.
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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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