W124 E320 Estate `94 *Intermittant cut out*

Discussion in 'Engine' started by Richydev, Jun 24, 2011.

  1. Richydev

    Richydev New Member

    Messages:
    8
    Joined:
    May 26, 2011
    Car:
    W124 E320 Estate
    :confused:Engine intermittant `cut out`. HELP. Not had the car long, my mechanic is stumped ? Starts and runs beautifully, then after stopping (at traffic lights / junction), just cuts out ?? Nothing obvious, checked all the forum threads, but can`t see one to match. Other days it wont do it. Usually after/during short journey. Once it cut out whilst I was driving. It used to start again after 5 minutes or so, but the last time, it wouldn`t start at all for days. When it happens, turns over fine, but no fire up. Could this be electronic / fuel cut out / Now it is with mechanic and starts all the time !!! typical. What do I check ? he cannot find any faults......Please help.
     
  2. trapperjohn

    trapperjohn MB Enthusiast

    Messages:
    7,316
    Joined:
    Nov 19, 2008
    Location:
    Lancashire
    Car:
    124 300D 24V Estate
    Sounds like "crank position sensor" or perhaps fuel pump relay. But that is an armchair mechanic talking. Others with proper qualifications will be along soon.

    At least my comment will "bump" your question to the top of the threads for now
     
  3. abecketts

    abecketts MB Enthusiast

    Messages:
    1,403
    Joined:
    Dec 8, 2008
    Location:
    Devizes, Wiltshire
    Car:
    Mercedes X250, Alfa Giulia Veloce, Alfa 166 3.2, Alfa Spider 3.0, Alfa 166 3.0 and tractors
    has the engine wiring loom been changed on the car, check the forum for a "sticky" thread on this a known fault on these vehicles though John maybe more in the zone in your case.

    Welcome to the forum
     
  4. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    18,896
    Joined:
    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, E55 AMG, S500, etc
    I doubt a CPS issue but you never know. I have never changed on eon a 104 engine and they are generally very reliable.

    Listen when it does it again and see if you can here the fuel pumps prime atthe rear of the car. If they dont suspect the fuel pump relay.

    OPen the wiring loom up too and see what state it is in.
     
  5. GP801

    GP801 MB Enthusiast

    Messages:
    2,905
    Joined:
    Jun 18, 2010
    Location:
    Sussex and Tuscany
    Car:
    2003 W209 CLK, 2005 R171 SLK in UK, 1995 S124 E280 in Italy
    Had a similar issue on our 280 last year. As above check if the fuel pump is running. It was the OVP relay om ours rather than the fuel pump relay but ended up doing both just to be sure.
     
  6. haaran

    haaran Active Member

    Messages:
    112
    Joined:
    Apr 18, 2011
    Location:
    West Yorkshire
    Car:
    Mercedes E55k
    Had similar symptoms on a 300-24v. It turned out to be the Ignition Control Module.
     
  7. bolide

    bolide MB Enthusiast

    Messages:
    3,726
    Joined:
    Oct 8, 2005
    Location:
    Brighton
    Car:
    BMW E39 525 Diesel Touring
    In lots of ways the 300-24 is a different car. There is no ICM on a late M104 (E280 / E320)

    I'd plump for fuel pump relay or OVP. Or even the MAF

    Nick Froome
    the independent Mercedes Estate specialists
     
  8. kth286

    kth286 MB Enthusiast

    Messages:
    2,923
    Joined:
    Feb 4, 2003
    Location:
    Caversham Berks
    Car:
    E320 Coupe
    Richydev

    Is you mechanic experienced on this generation of Merc.

    If not take it to someone that is.

    Let us know where you located and you will get some suggestions.

    the fault codes need to be read - has this been done and what codes were present, if any ?
     
  9. OP
    OP
    Richydev

    Richydev New Member

    Messages:
    8
    Joined:
    May 26, 2011
    Car:
    W124 E320 Estate
    Thanks for all the suggestions. I work overseas so just got back and mechanic says that he couldn`t get a Fuel pump relay ANYWHERE. I made a couple of calls and sourced two in stock straight away. Took the car back home in disgust.
    Fault codes...well I`ve been told that although this car has an ECU it does not have a "fault logger", so you can`t see what`s happened, until it actually happens !! The mechanic told me that he has started her up lovely every morning no probs, however, when I turned up, it wouldn`t !!
    Another mechanic that I know said that FPR`s can easily be `cleaned out`, so not usually that. Crank Shaft Sensor is heat related, i.e. when they get hot, they can cause engine to cut out, well don`t think it`s that either as it was stone cold a couple of times when it happened !!
    OK so you`ve given me some other options now....Ignition Control Module ?? and OVP relay (whatever that is ?), and a MAF (not a clue what that is).
    I live in Newton Abbot, Devon. I need an expert to take good care of her as I am desparate to get rid of my Audi Allroad and drive my dream car Merc. Always wanted one, now I`ve got her and nobody in this area knows what they are talking about.
    You guys are great.....
    Nick Froome....(independant Merc Est Specialist) - where are you based ?
     
  10. OP
    OP
    Richydev

    Richydev New Member

    Messages:
    8
    Joined:
    May 26, 2011
    Car:
    W124 E320 Estate
    Wherever it is that I take her, she could do with a service and there is perhaps a very very faint knock on speed ramps, but most people wouldn`t hear it (front right), but bit of a perfectionist I am......

    Oh, and when I got it back, the square plastic hollow housing in the back seat where the seat belt is retained when not in use, was shattered to pieces, so I need a new one !! can you still get these ??

    Appreciate all your help guys, love this club, but am overseas working a lot, so do what I can when I home. Just need to hand to someone good and reliable (specialist) to sort.

    Thanks, Richard.
     
  11. GP801

    GP801 MB Enthusiast

    Messages:
    2,905
    Joined:
    Jun 18, 2010
    Location:
    Sussex and Tuscany
    Car:
    2003 W209 CLK, 2005 R171 SLK in UK, 1995 S124 E280 in Italy
    OVP relay sits behind battery. It has a fuse on top. It is involved in lots of functions including the fuel pump. We had the intermittent starting problem on ours. It was the OVP relay - £65 from MB dealer. We also changed fuel pump relay. No more probs since.
    Dont know a specialist in Devon but I really rate Olly at PCS in Horndean. He transformed our 124 such that it now feels like a new car. Well worth a journey to see him.
     
  12. WG M-B

    WG M-B Auhorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    1,898
    Joined:
    May 26, 2011
    Location:
    N/W london
    Car:
    C63 Wagon in black
    Don't know what the tech means when he says you can't read codes. You can read all codes with star on your car. Someone with experience will diagnose your problem pretty swiftly
     
  13. millo777

    millo777 MB Enthusiast

    Messages:
    1,231
    Joined:
    Mar 9, 2011
    Location:
    Swansea, Dubai, Riyadh
    Car:
    1997 W140 S600L/2003 S211 320cdi
    Not really adding anything that hasn't already been said, but I would also suspect the fuel pump relay.

    I've had 2 Volvo 760's of the same era and experienced exactly the symptoms you describe, which turned out to be bad solder joints in the fuel pump relay. After replacing one of the relays I took the old one apart and it was clearly visble where the solder would expand slighty in operation just enough to break the circuit connection, then after 15-30 mins it would contract enough to make the circuit and the car would then re start. fwiw, they were bosch branded relays as well. They were actually repairable by replacing the offending solder joint.
     
  14. grober

    grober MB Master

    Messages:
    27,863
    Joined:
    Jun 22, 2003
    Location:
    Perth, Scotland
    Car:
    W204 C200CDI Estate
    As Bolide said there is no IGNITION CONTROL MODULE on your later model both fuelling and ignition are controlled via the engine ECU.
    The fuel pump and OVP relays can often be repaired by removing the covering can and then resoldering [ basically remelting the solder] on ALL the joints on the small internal circuit board with a small electronic soldering bolt.
     
    Last edited: Jul 21, 2011

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.