1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

w203 C270CDI Gearbox issue

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Big Dogg, Jan 3, 2013.

  1. Big Dogg

    Big Dogg New Member

    Messages:
    5
    Likes Received:
    0
    Joined:
    Dec 28, 2012
    Location:
    Belfast, NI
    Your Mercedes:
    '01 C270 CDI
    Hi Folks,

    Hoping someone can shed some light on this: I bought my father-in-law's C270CDI and absolutely loved it, but after a day of driving, I found an issue with the gearbox and I'm now giving the car back.

    Issue: I drove the car home from the father-in-law's (about 80 mile journey). The car nearly ran out of diesel (it was showing 0 miles range for about the last 20 miles) - I didn't do this deliberately, it was down to the car's fuel guage/reserve tank being a lot less than my old car and also the fact that there were no garages on the journey home. Anyways, I got the car home, put diesel in etc and everything was fine.

    Next day, I took the car down to show my parents etc., but the car didn't seem to be dropping gear when I put the foot down. There was a little acceleration, but no kick down. When I used the tiptronic and manually shifted down a gear or 2, it did shift down, but there was no additional acceleration over what there was in top gear.

    After driving like this for a while, I pulled in and stopped for a minute (didn't shut engine off). When taking off, the car seemed to be driving fine again. However, a few minutes later, the issue of little poke was back. I stopped, turned the engine off for a few mins and then started her again. She seemed to be working fine again. Then a different issue reared it's head - when accelerating hard to join the motorway, the car disengaged gear (while in drive) and was just revving when I pressed the accelerator, but no acceleration in the car. I had to knock it into neutral and then back into drive, for it to engage the gear again. The same thing happened after leaving a roundabout (again under hard acceleration).

    Anyone encountered a similar issue or have any idea what this is? Is the gearbox knackered? It's a real shame as I absolutely love the car and would love to keep it if it happened to be an easy fix, but I somehow doubt it.

    Thanks in advance.
     
  2. WG M-B

    WG M-B Senior Member Authorised Forum Supporter

    Messages:
    3,105
    Likes Received:
    6
    Joined:
    Dec 5, 2010
    Location:
    North west london
    Your Mercedes:
    C63 Wagon in black
    First thing would be to get the fluid level in the transmission checked
     
  3. OP
    Big Dogg

    Big Dogg New Member

    Messages:
    5
    Likes Received:
    0
    Joined:
    Dec 28, 2012
    Location:
    Belfast, NI
    Your Mercedes:
    '01 C270 CDI
    Forgot to mention, the gearbox oil and filter was changed about 3/4 months ago, with proper oil, filter and gasket bought from Merc dealership. The problem never really occurred with the father-in-law as he is really light footed (unlike me lol).
     
  4. television

    television Always remembered RIP

    Messages:
    164,074
    Likes Received:
    310
    Joined:
    Mar 14, 2005
    Location:
    Daventry
    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    But if the pilot bush was bad or a gator had split you will still not know,, A level check is the first thing to do.
     
  5. WG M-B

    WG M-B Senior Member Authorised Forum Supporter

    Messages:
    3,105
    Likes Received:
    6
    Joined:
    Dec 5, 2010
    Location:
    North west london
    Your Mercedes:
    C63 Wagon in black
    You could have a totally shot engine mount? You got a specialist near you that could take a look on star?
     
  6. OP
    Big Dogg

    Big Dogg New Member

    Messages:
    5
    Likes Received:
    0
    Joined:
    Dec 28, 2012
    Location:
    Belfast, NI
    Your Mercedes:
    '01 C270 CDI
    Hmmm.. I'm sure there are some MB specialists about. I'll have a look tomorrow. I had a quick search online and it seems a few people have had similar problems with the gearbox knocking itself into neutral on when 'kicking down'. No common cause though...
     
  7. television

    television Always remembered RIP

    Messages:
    164,074
    Likes Received:
    310
    Joined:
    Mar 14, 2005
    Location:
    Daventry
    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    The only way is when the fluid is low, you accelerate and the remaining fluid is pushed to the rear of the sump and the pump is starved, and your drive stops
     

Share This Page