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Thread: hard to start

  1. #1

    hard to start

    my 94 c280 recently started to have trouble starting. its acting like the gas doesn't want to come up. I had to give a little gas then it would start. This doesn't happened everytime, just once in a while and I see it happened mostly when the car is dead cold. Anybody experienced the same thing?? Any ideas??

    Z
    \'93 190E -
    \'94 c280 -

  2. #2
    Senior Member
    Join Date
    Nov 2004
    Posts
    1,757
    Try unplugging the coolant temp sensor on top of the thremostat housing. if nothing changes, my guess would be thats the problem. also a failing wiring harness can cause poor starting, but it would be accompanied by engine performance issues.

    nenad
    2002 S500
    2002 CLK430 w/ 5.5L swap
    2002 SLK32 AMG
    2003 S430 w/ 5.0L swap
    2000 ML55 AMG

  3. #3
    I'll try that.. engine performance is still okay i think... I've had a MB mechanic told me about the harness problem on the 94-95.. if that is my problem, you think I can get one from a junkyard off a newer car? (96 up)?
    thanks for the reply
    \'93 190E -
    \'94 c280 -

  4. #4
    Senior Member
    Join Date
    Nov 2004
    Posts
    1,757
    it actually has to be off of a 94 or 95 model, but I would highly recommend you buy a new one, since the old ones are defective, so going with a used one is not a good idea.

    nenad
    2002 S500
    2002 CLK430 w/ 5.5L swap
    2002 SLK32 AMG
    2003 S430 w/ 5.0L swap
    2000 ML55 AMG

  5. #5
    Senior Member
    Join Date
    Jul 2003
    Location
    San Antonio, Tx
    Posts
    883
    I had the same problem with my 95 and the MAS replacement fixed it. Same symptoms too. Didn't seem to affect performance, just had the starting issue.
    2011 Audi A3 2.0T Quattro S. Tronic Ti Package
    APR FMIC
    APR Stage II Software
    Carbonio Intake
    B&B Turboback Exhaust

    2006 Audi A4 2.0T Quattro 6MT (Sold)
    1999 C 280 Sport (Sold)
    1995 C 280 (Sold)

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