Thread: code P0171 and P0174
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Old Oct 25, 2016 | 09:35 AM
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maniacsparadise's Avatar
maniacsparadise
Joined: Sep 2016
Posts: 13
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From: Bremen, Germany
Default Re: code P0171 and P0174
I have the same problem of a rough engine after the oil change.
Codes P0171 and P0173.
I'm going to buy a new oil filler cap today from Mercedes (7 Euros) and hope my problem will be solved.
 
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