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#1
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EGR Flow Problem
The problems never end........ :-(
I'm driving last night and the Check Engine light comes on. Check the code, and it's P0400 (Exhaust Gas Recirculation Flow). Any clues on what/where/how to start checking?? This vehicle is driving me crazy....... I have NO problems with my S500, but this one MORE than makes up for it..... :-( Thanks.
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Barry |
#2
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Most common problems are the EGR valve($76.) itself & the tube from the EGR valve to the intake plugging up.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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I haven't dug into the engine area yet to check, but what are we looking at here to get to the EGR valve and the tube??
I'm guessing a good cleaning would be the first step?? Thanks!
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Barry |
#4
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M.B.DOC,
Where can I buy the EGR valve at this good price ($76)? I need to replace mine. I tried cleaning it and after 20 miles of driving, the P0400 popped back again. Thanks. Danny |
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