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Engine Cutting Out Randomly W210

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Bluegrass, Mar 6, 2019.

  1. Bluegrass

    Bluegrass Senior Member

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    Joined:
    Aug 17, 2005
    Your Mercedes:
    W210 E320 Avantgarde 2000
    For the past couple of months the engine randomly cuts out when stationary or starts →revs up and either cuts out instantly or slowly with the whole car shaking.Also whilst driving it feels like it's suffocating i.e not the normal amount of power readily available (if that makes sense).

    This issue is very random. I could drive the whole day without any problems but on another day constantly cuts out, but it fires up instantly.

    I have replaced the breather pipes, air filter and had a stab at cleaning the throttle plate in situ.the Now thinking of removing it and doing a proper clean. The fuel filter isn't too old and my mileage is very low 5000m a year, but will clean that also.

    Anything else I could try before giving up and taking it to my "friendly" indie?

    Thanks.
     
  2. brandwooddixon

    brandwooddixon Senior Member

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    Location:
    Wolverhampton
    Your Mercedes:
    CL500 Bluefficency 2012
    I think that you'll be visiting an indie if the problem is intermittent.
    A faulty cam sensor will cause the engine to cut out, but it doesn't always cause rough running, instead as it fails the engine will cut out when hot and restart when cold.
    Another culprit would be a faulty MAF, but that usually causes rough running most of the time.
     
  3. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    I don't think it's the Cam Sensor because it starts back up straight away i.e no waiting time needed to cool down. The Sensor it's about 4 months old though it might be poor quality product from ECP.

    I suspect air leak but having changed all the breather pipes don't know where else to look.Fitted a new air filter from MB last month and notice a gap of about 1cm when in the holder. Don't know if this is normal. Never noticed it before.
     
  4. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    I was wrong.
    Bit the bullet and took it to the regular Indi I use. No fault codes showed up but at his suggestion changed the CPS and so far touch wood issue is gone.
    Pleasant surprise was that he didn't charge me for the test.
     
    alexanderfoti, om613 and Blobcat like this.
  5. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Spoke too soon.

    Problem is back.
     
  6. giuseppe

    giuseppe Senior Member

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    Location:
    Bournemouth
    Your Mercedes:
    E220Cdi avantgaurde 2001
    check the fuel valve regulator and sensor at the end of the high pressure rail near the bulk head, can get bunged up causing fuel starvation, a good dose of Stanadyne from dieselpartsdirect.co.uk will help to keep the fuel line and injectors clean
     
  7. mattkh

    mattkh Senior Member

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    Location:
    England
    Your Mercedes:
    W168 1999 1.6
    Clean the fuel pump relay.
     
  8. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Is it the one next to the battery under the rear seat?
     
  9. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Do you have a picture or a link to one of this valve regulator & sensor?
    Thanks.
     
  10. mattkh

    mattkh Senior Member

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    England
    Your Mercedes:
    W168 1999 1.6
    No.
    It is integrated into the K40 relay module in the fuse box under the hood.
     
  11. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Yes did that last year when the problem started following this guide.

    Visually all solder points looked good and shiny but my soldering iron wasn't powerful enough to do a proper job.Maybe I need to have another go.

     
  12. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Found it. Will check when I have time. Browsing the internet this Valve Regulator seems a good suspect. Thanks.
     
  13. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Thought I knew where the Fuel Valve Regulator was. Can someone please point to it on this image.
    Thanks. IMG_20190502_150059.jpg
     
  14. mattkh

    mattkh Senior Member

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    Your Mercedes:
    W168 1999 1.6
    Start at one end of the u-bending fuel rail. Feel below the rail. You are looking for a small saucepan looking thing attached to the fuel rail.
     
  15. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Thanks for your reply.

    Just tried but unfortunately didn't find anything. Could this be it?

    Forgot to mention before.Sometimes when this happens I hear a loud phuss sound like when a lorry breaks.
    IMG_20190505_185516.jpg
     
    Last edited: May 5, 2019
  16. mattkh

    mattkh Senior Member

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    Your Mercedes:
    W168 1999 1.6
    Yes, thats what they look like.
    But to be sure, can you see any connection to the fuel carrying part.
    Also, any part number you can read on it.
     
  17. matthew k

    matthew k Senior Member

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    Feb 4, 2015
    Location:
    Winchester Hampshire
    Your Mercedes:
    2005 320 cdi Sport 7 seat estate
    Does the W210 suffer from ECU/loom faults, dry joints etc? It's obviously getting on now, I may of course be barking up TWT.
     
  18. LostKiwi

    LostKiwi Senior Member

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    Location:
    Midlands / Charente-Maritime
    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    That's not it. That looks like the variable intake operating diaphragm.
    The M112 and M113 fuel pressure regulator is integrated into the fuel filter housing.
     
  19. OP
    Bluegrass

    Bluegrass Senior Member

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    Your Mercedes:
    W210 E320 Avantgarde 2000
    Thanks for clearing it up. If it's integrated then I have no choice but to buy a whole filter.
    I know it's recommended to buy parts from the dealer but since it's guess work can I get away with a cheaper brand? Have already spent about £500 for this problem.
     
  20. Alex Green

    Alex Green Senior Member

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    Jul 5, 2017
    Your Mercedes:
    Cl500/2000/V8 5.0L
    My W215 CL500 had a similar issue and I changed the MAF and it is completely sorted now.

    The engine ran well most of the time without any roughness but when cold would sometimes just cut out.

    Turns out the Ford Ranger MAF is the same Bosch part number as the MAF on mine. Bought one for fault finding for £17 and problem solved.

    HTH

    AL.
     

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