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W210 e320 cdi deisel leak

Discussion in 'Engine' started by M.A.94, Aug 25, 2017.

  1. M.A.94

    M.A.94 Hardcore MB Enthusiast

    Messages:
    163
    Joined:
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    Location:
    Newcastle upon Tyne
    Car:
    2001 Mercedes E320 CDI (W210) OM613
    So my car has had a strong fuel smell coming the past day or two. Today I took the engine cover off and it I've found the leak however not sure what the leaking part is called and it's purpose. Any advice is appreciated thank you

    [​IMG]
    [​IMG]
     
  2. bob6600

    bob6600 Hardcore MB Enthusiast

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    Car:
    S210 E320 CDI
    Have you taken that out and put it on top of the engine for the pics? Is it originating from where the white line is?
     
    1 person likes this.
  3. Richard1973

    Richard1973 Hardcore MB Enthusiast

    Messages:
    133
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    Car:
    S210 320cdi Avantgarde
    Not sure what it's for, but my guess is that if the fuel lines are old, they have become brittle and maybe fractured and started leaking. Common problem. I have just replaced all of them on mine. Surprisingly, Mercedes had that one in stock!

    Sent from my SM-T365 using Tapatalk
     
    1 person likes this.
  4. bob6600

    bob6600 Hardcore MB Enthusiast

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    Car:
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    It's a valve , no. 49

    A6110780349

    [​IMG]
     
    1 person likes this.
  5. OP
    OP
    M.A.94

    M.A.94 Hardcore MB Enthusiast

    Messages:
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    Location:
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    Car:
    2001 Mercedes E320 CDI (W210) OM613
    Thank you the part number is a big help, I'm going to pop into Mercedes on Tuesday and order the part. I reckon they wont have it in stock so probably wont get it replaced by Thursday'ish
     
  6. bob6600

    bob6600 Hardcore MB Enthusiast

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    I hope you can get it, EPC says no longer available
     
  7. Richard1973

    Richard1973 Hardcore MB Enthusiast

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    Car:
    S210 320cdi Avantgarde
    Comes as part of the fuel line it's attached to. About £45 from Mercedes.

    Sent from my SM-T365 using Tapatalk
     
  8. Benzinario

    Benzinario New Member

    Messages:
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    Joined:
    Aug 30, 2017
    Car:
    MB W210 220 CDI 143CV
    My 220 CDI suffers exactly the same fault, not yet repaired. MA94, I ask you if you have repaired it by means of the simple change of the valve. Thank you very much.
     
  9. a111r

    a111r Hardcore MB Enthusiast

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    Location:
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    Car:
    S123 240TD, S210 320cdi.
    I've heard that valve is hardly ever used.

    If you look at Bob's EPC diagram, you can see that it Ts into the line that transfers fuel from the low pressure pump to the high pressure pump.

    It could be eliminated easily with some home modification.
     
    1 person likes this.
  10. OP
    OP
    M.A.94

    M.A.94 Hardcore MB Enthusiast

    Messages:
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    Car:
    2001 Mercedes E320 CDI (W210) OM613
    Had the valve and pipe changed out. However now the car does not want to start it cranks but doesent start. Any ideas. I've attempted to bleed air out by cracking the injectors still no luck
     
  11. mersum1es

    mersum1es Hardcore MB Enthusiast

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    Location:
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    Car:
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    Triple check you put hoses on right order to hp-pump. MOST COMMON reason lol...

    If right, Is there air bubbles running in clear pipes? Still leak somewhere...

    If no, check that CPS connector plug is intact, all injector plugs are tight, shut valve (if you have one) wiring is good.

    If system is not in 100% condition it can requires minutes of starting anyway...
     
  12. bob6600

    bob6600 Hardcore MB Enthusiast

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    Yes they can be a PAIN to start. Not unusual for the battery to get flattened in the process
     
  13. OP
    OP
    M.A.94

    M.A.94 Hardcore MB Enthusiast

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    Does this mean I keep starting the car until it fires up. Will this not eventually kill the starter.
     
  14. a111r

    a111r Hardcore MB Enthusiast

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    A really very brief 'sniff' of 'easy start' into the air filter (very volatile ether) is the way to do it, saving the battery.

    Don't over-egg it with a 'big one', i.e. a more than 2 seconds squirt.... or you might bend a rod...
     
  15. OP
    OP
    M.A.94

    M.A.94 Hardcore MB Enthusiast

    Messages:
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    Location:
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    Car:
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    It seems as though the fuel pump is the culprit here. If fuel is forced using air the car starts however no start without. Any ideas
     
  16. OP
    OP
    M.A.94

    M.A.94 Hardcore MB Enthusiast

    Messages:
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    Joined:
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    Car:
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    Not been on the forum since this issue, had the car looked at by my local indy. Turned out the hoses going to the HP pump were installed incorrectly as mersum1es suggested, so thank you for the suggestion. It was my fault all along :mad:
     
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