Transmission oil change?

Discussion in 'Engine' started by turboGT, Apr 19, 2014.

  1. turboGT

    turboGT Active Member

    Messages:
    87
    Joined:
    Mar 20, 2014
    Car:
    Mercedes only!
    Hi everyone,

    I would like to know how it is possible to check whether my W220 S500 needs a transmission oil change.

    I have no idea when was the last transmission oil change. My car does not have a dipstick; the oil should be changed underneath I believe.

    My car has a whining noise from time to time when I drive slowly.
    When the engine/transmission are still cold, the downshift from 2 to 1 is very rough.

    Can anyone please help me here?

    Thanks a lot
     
  2. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
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    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, MK1 Caddy, S500, etc
    You can tell buy just looking at the oil. If it's greeny brown then change it.

    If you are not sure, change it anyway, it's not expensive to do.
     
  3. OP
    OP
    turboGT

    turboGT Active Member

    Messages:
    87
    Joined:
    Mar 20, 2014
    Car:
    Mercedes only!
    How do you actually check the oil?

    Thanks
     
  4. OP
    OP
    turboGT

    turboGT Active Member

    Messages:
    87
    Joined:
    Mar 20, 2014
    Car:
    Mercedes only!
    Anyone? :dk:
     
  5. RAJ55

    RAJ55 Hardcore MB Enthusiast

    Messages:
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    May 9, 2009
    Location:
    west mids
    Car:
    R230 SL, W212 E250 cdi
    via the gearbox dip stick. it should look like this
    [​IMG]
     
  6. wongl

    wongl Hardcore MB Enthusiast

    Messages:
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    May 29, 2005
    Location:
    Hong Kong
    Car:
    A180CDI x3, C300h
    I would change the gearbox oil every 30,000 to 40,000 as a precaution. You can check with your local MB dealership for the correct oil and the amount required. Don't forget to get a new gearbox filter and sump gasket (if you have an automatic gearbox). Total cost would be around £60 to £70 and an indie would probably charge circa £150 to £200 to do this.

    If your are going to change the oil yourself, I would invest in a MB gear dipstick from either your dealer (circa £15 to £20) or from eBay if your local dealership refuses to sell you "MB tools". Failing this, I measured the amount of oil drained from the gearbox and replace with the exact amount of fresh MB Gearbox oil - a bit messy doing it this way but worked for me (check the oil level after I got the dipstick and it was spot on). This method assumes that your gearbox is sealed and had the correct level to start with. Wouldn't work if there is a leak on your gearbox.
     

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