Slow Headgasket leak on '99 c230...big problem?

Discussion in 'Engine' started by golden1245, Oct 9, 2012.

  1. golden1245

    golden1245 Hardcore MB Enthusiast

    Sep 6, 2011
    1999 C230K Sport
    There's been a very slow headgasket leak on my '99 C230k for a few years now. It's never given me any trouble besides me having to top off the coolant tank every 6-7 months or so. 2 mechanics have diagnosed it but each have different views on what to do. One of them said that it's not a huge problem on the C230's and you'd have to keep refilling in coolant if i decided not to fix it.

    The other said that it can and will explode and all the coolant will leak out at any moment.

    A headgasket job + head polish in California would cost (in GBP) about 935 and would seriously put a dent in my finances.

    From experience, what do you guys think? I've read that headgaskets issues rarely happen on C230's unless they are very very high mileage. Mine only has 152,000 miles on it. Could they be loose head bolts instead? (i read from another member that some lose bolts were causing the leak.)
    Last edited: Oct 9, 2012
  2. brucemillar

    brucemillar MB Club Veteran

    Nov 18, 2010
    Next Door to Alice - 25 'kin years now
    C55 AMG Wagon - W124 300te 4matic Wagon - BMW 4.8is X5 E53 - SWB Pajero 3.5 V6 24v
    I can't really advise you on that engine only from my own experience. I would work on the principle that it will go bang when you least expect it or want it to.

    That is the law that applies to these kind of things.

    I had a slow head leak on a Range Rover and did what you are doing. That went bang with four of us on-board, in the middle of nowhere heading for a Golf Match (which we missed). I nearly survived with some sympathy until I let out that it had "always leaked"
  3. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Feb 8, 2007
    Horndean, Portsmouth, Hampshire, Southsea
    C43 AMG with a 55 engine and supercharger, E55 AMG, S500, etc
    A head gasket coolant leak really can't be left as damage long term could happen to the head. We had one in recently with this issue. It had been left for a long time and the head was damaged.
  4. Stratman

    Stratman Hardcore MB Enthusiast

    Jun 15, 2003
    W203 C200 CDI '04Estate
    I had a dodgy but driveable head gasket on an old Daimler 2.5 V8.

    It worked fine right up to the moment it let go in a spectacular shower of steam.

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