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2003 Sprinter 311 cdi - engine cuts out whilst driving and some problems starting

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by Bonehead, Oct 20, 2014.

  1. Bonehead

    Bonehead New Member

    Likes Received:
    Oct 17, 2014
    Your Mercedes:
    Sprinter 311cdi/2003/2.1L turbo
    Hi all,

    I having a problem with my 2003 Sprinter 311 cdi that seems to crop up on this forum and others. The main issue is that the engine will cut out whilst driving - usually after having driven the van for while that day (i.e. the engine is warm). When the problem occurs i have to pull to the side of the road, turn the key back, and then restart. It will restart fine but 10 minutes later the problem will happen again. I can usually start it one last time but if the engine cuts out a third time i then can't get it started at all and EDC light comes on. The engine doesn't even try to turn over.

    In addition to this i have had some problems starting it on occasion. Easystart will get it going but i imagine the 2 problems are somehow connected.

    On taking it to my mechanic each time the cause he has shown me has been a cracked washer in the fuel pressure regulator/valve and all error codes point to the fuel pressure valve. I have had the valve replaced twice but the problem persists. I have just broken down again and so want to take it to another mechanic (preferably a merc specialist who has seen this problem before) to get the error codes read and the problem properly diagnosed.

    I read a lot the problem could be the CPS - but will this crack the fuel pressure valve washer? Could anyone shed any light please? If it is the CPS then i could replace this myself so i am told which could save me a lot of money.

    I live in Bristol if anyone could help me locate a trusty independent merc specialist?

    Please help me.

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