Thread: '98 ML320 - EGR tube cleaned but still P0400
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  #12  
Old 07-01-2009, 11:00 AM
lkchris lkchris is offline
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Join Date: Jun 1999
Location: Albuquerque, NM USA
Posts: 1,947
There's an electric motor in the M112 EGR system that sometimes fails and generates the 0400 code. That is, there can be more to fixing the problem than simple cleaning.
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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles
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