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C180 Kompressor looses power on full-throttle

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by amosuro, Apr 19, 2012.

  1. amosuro

    amosuro New Member

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    Joined:
    Apr 19, 2012
    Location:
    London
    Your Mercedes:
    C180 Kompressor/2003/1.8 AUTO
    Hi everyone,

    I have an issue with my C180 Kompressor (2003) Automatic 1.8.

    Sometime last week, when I was approaching a slip road on the motorway, as soon as I started giving it some gas, it seemed to just loose power and almost go into a neutral state for a few seconds.

    Once this happened, I can literally put my foot all the way down on the pedal and there's no power, the car just starts to slow down to about 40MPH...obviously you can imagine this is quite dangerous on a motorway.

    But what is strange, is when I gradually put my foot on the accelerator it's absolutely fine, it only seems to be when I give it quite a bit of gas. I'm able to drive the car still, I just have to spend about a minute gradually increasing the speed to about 60MPH...which is an absolute pain!

    I've had a mechanic drive it around, and he thinks it's something to do with the intercooler rad, saying that it might be blocked and that I should replace it. Intercooler rads are not cheap, and I'm hesistant to go out and pay that sort of money on a hunch.

    I found this thread, and the guy seems to have exactly the same problem!
    http://forums.mercedesclub.org.uk/showthread.php?t=89648

    Unfortunately he didn't come back to say whether it was the hose or not.

    Has anybody else experienced this problem? I'm thinking about trying the hose first, as it seems like the cheaper option, but I wonder if anybody has a diagram so that I can locate exactly which hose it is I'm looking for.

    Thanks guys!
     
  2. Alex Crow

    Alex Crow Senior Member

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    Joined:
    Jul 9, 2009
    Location:
    Super Suffolk
    Your Mercedes:
    W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
    Hi,

    To suggest a blocked inter cooler is a very very odd suggestion, does this mechanic know Mercedes well?????
     
  3. AMck

    AMck Senior Member

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    Location:
    Newport
    Your Mercedes:
    2007 E320cdi S211, SL320 2000(written off), Lotus Excel
  4. OP
    amosuro

    amosuro New Member

    Messages:
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    Joined:
    Apr 19, 2012
    Location:
    London
    Your Mercedes:
    C180 Kompressor/2003/1.8 AUTO
    Well no, I don't think he does as he doesn't specialise in Mercedes cars.

    Has anybody else had this issue?

    Initially, I thought that the car was going into limp mode once it hit around 3000rpm, but it seems that I can pass 3000rpm provided that I gradually increase my speed. However, if I put my foot down (as if I'm coming onto a slip road) that's when it seems to have problems.

    So this is odd...I can reach high speeds, but if I try to reach a high speed quickly that's when it cuts out. I'm completely lost with this...
     
  5. Alex Crow

    Alex Crow Senior Member

    Messages:
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    Joined:
    Jul 9, 2009
    Location:
    Super Suffolk
    Your Mercedes:
    W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
    You really need it checking properly, starting with fault codes and moving forwards from that point - there are a great many possibilities.
    My guess is a fuel pressure fault, caused by a pattern fuel filter.
     
  6. dswhitehouse

    dswhitehouse Senior Member

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    Joined:
    May 2, 2012
    Location:
    Naples, Italy
    Your Mercedes:
    ML270 CDI/2002/2.7
    I had a similar problem with my ML270 CDI. The power would suddenly cut back significantly under load, ie, overtaking or joining a motorway. Within a day it got to the stage where the ESP light would come on and the engine cut out (very scary on the motorway!). After rolling to a stop on the hard shoulder, the car would start and drive off normally without any problems and lights extinguished but the problem always occurred under load.

    Despite the fact I changed it only 4 months previous, I decided to change the fuel filter as it was the cheapest in the list of possible candidates. Hey presto, it was cured. Next service I'm going to replace it with an genuine MB filter. I live in the South of Italy and fuel quality is abysmal here.
     

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