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E320 going limp during slow driving

jshodgson

Active Member
Joined
Aug 25, 2017
Messages
138
Location
Torquay UK
Car
E class 320 cdi sport 2007
my E320 goes into limp mode most journeys now (used to on e every few months). It always seems to happen in slow driving (around town, in traffic). The OBD codes are always 404 (EGR) and 132 (O2). Yet I’ve heard that these can be triggered by other problems. Before I take it to the Indy are there any quick things I can check myself and what could be causing it?
 
STAR code reader - your 132 points to MAF, but generic OBDs don’t drill down as far as star can
 
The garage diagnosed it as a faulty EGR and replaced it. I also had 4 dead glow plugs that were changed although they said they wouldn’t have contributed to the limp mode problem.
 
The garage diagnosed it as a faulty EGR and replaced it. I also had 4 dead glow plugs that were changed although they said they wouldn’t have contributed to the limp mode problem.
 

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