1992 W124 300TD - Noisy Tappets

Discussion in 'Engine' started by tomghannon, Oct 11, 2010.

  1. tomghannon

    tomghannon Member

    Messages:
    41
    Joined:
    Oct 10, 2010
    Location:
    Co. Clare, Ireland
    Car:
    1992 W124 300TD, 2001 W210 E320CDI
    Hi all,

    Long time lurker here - first time poster!

    As the title says, I have a 1992 W124 300TD with 231,000 miles.

    Mechanically, the car has been faultless - however it has a persistent problem with what I assume are noisy tappets. I change the oil and filter every 3000 miles and in the last two changes I ran an engine flush which doesn't seem to have cured the problem. I use 5w30 semi-synthetic oil as advised by a number of mechanic friends.

    My questions, is there anything else I can do along with or instead of the engine flush and also would I be better off using fully synthetic oil.

    Thanks
     
  2. krimat2005

    krimat2005 Hardcore MB Enthusiast

    Messages:
    317
    Joined:
    May 31, 2009
    Location:
    Littlehampton, West Sussex
    Car:
    Mercedes W124 300D/ S203 220cdi
    Hi, change the tappets, they cost about £10-12 each from gsf, well i'm suggesting get them all 12 done. if you have a friendly mechanic who knows what he's doing it's 2 hrs job with a pint of lager...
     
    1 person likes this.
  3. 230K

    230K Hardcore MB Enthusiast

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    2,190
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    Jun 1, 2003
    Location:
    Belfast
    Car:
    09 E320 cdi Sport Estate, 98 E300TD Estate, 99 SL 500
    Hi

    I agree, just change them, i tried changing just 2 to start with and then bit the bullet and bought the remaining 10 and she has been as silent as a mouse chewing paper since and that was 7 years ago!!

    Easy to change too

    230K
     
    1 person likes this.
  4. spock500

    spock500 Hardcore MB Enthusiast

    Messages:
    727
    Joined:
    Apr 1, 2008
    Location:
    Milton Keynes
    Car:
    S124
    Given the miles I might be tempted to try 10/40w to see if that makes a difference.

    What spec oil do MB recommend for this engine?

    If you do change them give these guys a try, paid about £8ish each for mine :thumb:

    UltraParts
     
  5. sub_zero

    sub_zero Hardcore MB Enthusiast

    Messages:
    257
    Joined:
    Oct 18, 2004
    Location:
    kuwait
    Car:
    W124 E220 1995
    Pardon me all, what do you mean by tappets?
    I tried Google to translate it, Google translated it to another word I don't know :confused:
     
  6. compress ignite

    compress ignite Hardcore MB Enthusiast

    Messages:
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    Joined:
    Jun 4, 2006
    Location:
    32 degrees North by 81 degrees West
    Car:
    '90 300D 2.5
    In Yank speak

    Hydraulic Lifters(They fit in between the Valve Stem and the Camshaft.On top of the Valve)
     

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    Last edited: Oct 15, 2010
    1 person likes this.
  7. OP
    OP
    tomghannon

    tomghannon Member

    Messages:
    41
    Joined:
    Oct 10, 2010
    Location:
    Co. Clare, Ireland
    Car:
    1992 W124 300TD, 2001 W210 E320CDI
    Thanks for all the replies so far.

    Just been quoted €32.75 ea + VAT = €39.62 (x12) = €475.44 from my local friendly main stealer.

    I assume (hope) I can get these cheaper elsewhere.

    Does know the Mercedes part no and any suggestions on who to try to obtain these.

    Thanks.
     
  8. spock500

    spock500 Hardcore MB Enthusiast

    Messages:
    727
    Joined:
    Apr 1, 2008
    Location:
    Milton Keynes
    Car:
    S124
    Did you try the link in my post?
     
  9. snoopy

    snoopy Hardcore MB Enthusiast

    Messages:
    104
    Joined:
    Oct 8, 2010
    Also very possibly injector knock, they'll be worn at that mileage.

    Loosen each one of (13mm spanner) one by one and see if knock stops, if so you've found it.

    Do you run on comedy fuel?

    I have a working spare for sale if you need it, I bought 6 from a breakers and only needed 5 for my 250d. It's been tested. See: http://gb.adings.com/?classifieds;module=view;id=163
     
    Last edited: Oct 15, 2010
  10. krimat2005

    krimat2005 Hardcore MB Enthusiast

    Messages:
    317
    Joined:
    May 31, 2009
    Location:
    Littlehampton, West Sussex
    Car:
    Mercedes W124 300D/ S203 220cdi
    try GSF car parts, they are about £12, but if you ask nicely they might give you discount. anyway, staff they selling is OEM INA, so I wouldn't think twice.
     

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