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 MBE906 W/ DPF losing power, CEL for EGR
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Lgpag
New Member

USA
3 Posts

Posted - 09/01/2016 :  05:31:40 AM  Show Profile  Reply with Quote
The bus is a 2008 C2 with the DPF Mercedes. It randomly derates and has code 2791 for EGR valve control mechanical system not responding. I'm suspecting the EGR valve has gone bad and is throwing a code, preventing it from doing a regen, thus the derate. Anyone have any input ?I don't know much about these engines.

baptistbusman1
Senior Member

USA
175 Posts

Posted - 09/01/2016 :  3:16:54 PM  Show Profile  Reply with Quote
Yes, more than likely it needs replaced. Most times they will get so much soot buildup, they stick shut.

These engines have been a pain in our butt for the last few years. The DPF's clog up and the egr's mess up. It's been a constant battle.

I was formally Baptistbusman. However, I lost my password, and had not updated my email address.

Here is a link to my old posts. http://www.schoolbusfleet.com/forum/search.asp?mode=DoIt&MEMBER_ID=1846
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