Mercedes-Benz Forum - View Single Post - P0400 Code!!!
Thread: P0400 Code!!!
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post #2 of Old 08-14-2019, 06:48 AM
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Originally Posted by Dan Kasht View Post
Hi all need help on a 2003 E320 sedan

I have had a p0400 code i cannot get rid of. I replaced EGR with new and removed and cleaned tube thoroughly. I changed a few of the vacuum lines that had wear and still no luck of ridding this code.

Any suggestions on where to look next?
Not sure if this helps

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