Mercedes 2001 3.2 diesel W210 loss of power

Discussion in 'Engine' started by Lord Creed, Aug 1, 2017.

  1. Lord Creed

    Lord Creed New Member

    Messages:
    18
    Joined:
    Apr 12, 2014
    Car:
    Mercedes e320 diesel
    Hi everyone I'm having problems with my mercedes 2001 3.2 diesel. it keeps losing power after heavy acceleration. I've changed the mass air flow sensor, turbo, cleaned the cat and more yet its still losing power and won't rev over 3000rpm!! please help as this is driving me insane!
     
  2. ringway

    ringway MB Enthusiast

    Messages:
    6,847
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    Nov 29, 2008
    Location:
    In a World of My Own.
    Car:
    Audi A6 Avant 3.0 Bi TDI - A Fantastic Car! Range Rover Supercharged - Lovely! Also R32 & S4.
    Do you get an error message in the speedo display such as ECP when his happens?

    Can you see air in the plastic fuel lines when the plastic rocker cover is removed and you rev the engine?

    Have you had the car diagnosed on STAR?
     
  3. OP
    OP
    Lord Creed

    Lord Creed New Member

    Messages:
    18
    Joined:
    Apr 12, 2014
    Car:
    Mercedes e320 diesel
    Hi there, yes i did get an error message for the first time 3 days ago after pushing the throttle down hard reading ECP. regarding the plastic fuel lines etc i haven't checked this. I have however had the diagnostics done at mercedes last week but no faults just old stored ones. Regards
     
  4. Richard1973

    Richard1973 Active Member

    Messages:
    211
    Joined:
    Mar 4, 2017
    Car:
    S210 320cdi Avantgarde
    I have had the exact same issue, only it will still rev. Had it looked at today and got 4 injectors leaking. It did have a fuel pressure fault showing for rail pressure when I had it on STAR. Will report back when the injectors are done.

    Sent from my SM-T365 using Tapatalk
     
  5. OP
    OP
    Lord Creed

    Lord Creed New Member

    Messages:
    18
    Joined:
    Apr 12, 2014
    Car:
    Mercedes e320 diesel
    thats great news as haven't met anyone with the same problem and its driving me mad!
     
  6. OP
    OP
    Lord Creed

    Lord Creed New Member

    Messages:
    18
    Joined:
    Apr 12, 2014
    Car:
    Mercedes e320 diesel
    when you say rev will yours rev over 3000?
     
  7. bob6600

    bob6600 MB Enthusiast

    Messages:
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    Jan 3, 2013
    Car:
    AUDI S8 V10, S210 E320 CDI (R.I.P.)
    It won't rev over 3000 because it is in limp mode, possibly via the MAF but this doesn't mean the MAF is faulty.

    Plastic fuel lines need to be checked, could be leaking air into the system. If you're lucky, just the O rings need changing. Change fuel filter if hasn't been done. Also check air pipes (intercooler etc) ensuring no splits
     
  8. Richard1973

    Richard1973 Active Member

    Messages:
    211
    Joined:
    Mar 4, 2017
    Car:
    S210 320cdi Avantgarde
    Yes it will. It's in at Swadlincote Diesel to be sorted. At least 4 injectors leaking! Waiting to hear what the damage is to my wallet!

    Sent from my SM-T365 using Tapatalk
     
  9. a111r

    a111r MB Enthusiast

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    Did STAR not show their QCVs out, then?

    Got loads of OM613 spares inc. fuel system, as I might be 'throwing in the towel', so the wife recently tells me...:(:dk:
     
  10. Richard1973

    Richard1973 Active Member

    Messages:
    211
    Joined:
    Mar 4, 2017
    Car:
    S210 320cdi Avantgarde
    The STAR session was a little while ago and the starting issue has got worse recently. Decided it was best to get it sorted out once and for all.

    Sent from my SM-T365 using Tapatalk
     
  11. Richard1973

    Richard1973 Active Member

    Messages:
    211
    Joined:
    Mar 4, 2017
    Car:
    S210 320cdi Avantgarde
    Still not ready! Injectors are out. No.4 was siezed in and the body is damaged. Testing the others on Monday.

    Sent from my SM-T365 using Tapatalk
     
  12. jpwilliams

    jpwilliams Active Member

    Messages:
    975
    Joined:
    Dec 23, 2006
    Location:
    Wirral /Axarqia,Spain
    Car:
    W210 DIESEL AUTO EST,LEXUS GS 450h
    Had same problem with my 220 cdi....it needed a new Mas Air Flow Sensor.

    Good luck.

    Regards
    John
     
  13. m2287

    m2287 MB Enthusiast

    Messages:
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    cambridge
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    It will be low fuel pressure - injectors, high pressure pump or split lines
     

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