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C200 air flow meter problem???

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Daves W202, Jul 10, 2011.

  1. Daves W202

    Daves W202 Active Member

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    Location:
    Cumbria
    Your Mercedes:
    1997 c200 elegance
    Just noticed something about my w202 c200. The wire to the air mass meter was disconnected when I reconnected it the car barely ran at all no warning lights on the dash tho disconnected it runs fine again with no warning lights but is heavy on fuel. I assume theres a problem with the meter but would like a second opinion before I order a new one. Also my oil filler cap is stuck hard and wont come off what would the best way be to remove it without damaging it?
     
  2. grahamcol

    grahamcol Senior Member

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    Your Mercedes:
    2001 SLK230, 2007 CLK220 CDI
    Sounds like it might be that, I think a star test would confirm. The oil cap tends to be extremely tight on a cold engine. Warm the engine up properly and you should find it comes off with ease.
     
  3. television

    television Always remembered RIP

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    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    Yes some cars will run just fine when the MAF has failed and it is disconnected, they will run rich, and thirsty.

    What make is it, if a Bosch then cheapest from any Bosch service center
     
  4. OP
    Daves W202

    Daves W202 Active Member

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    Your Mercedes:
    1997 c200 elegance
    Yeah it uses buckets of fuel lol! Its a bosch part.
     
  5. television

    television Always remembered RIP

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    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    Then £150 roughly from any Bosh service center
    http://www.boschautoparts.co.uk/#

    Use the dealer locator
     
  6. OP
    Daves W202

    Daves W202 Active Member

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    Your Mercedes:
    1997 c200 elegance
    What about the ones on ebay? I have one in watching for £32. Brand new bosch part.
     
  7. umblecumbuz

    umblecumbuz Senior Member

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    Your Mercedes:
    S204 and CLC 204 cdi, other non-Merc machines
    Can't help wondering how long you've had the car???
     
  8. Steve@Avantgarde

    Steve@Avantgarde Forum Supporter Authorised Forum Supporter

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    Your Mercedes:
    C220CDI AMG Line Premium, SLR McLaren Roadster, SL55 & C32AMG
    On these engines if you disconnect the MAF it will run in a base setting. Check the signal wires to the MAF too. Mine started misbehaving last week, star said "MAF sensor current and stored". I threw a MAF at it and it was still the same. Turned out I had a broken signal wire from the ECU. Should have diagnosed it properly first!!!
     
  9. television

    television Always remembered RIP

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    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    Are you sure that the word Bosch is spelt correctly
     
  10. OP
    Daves W202

    Daves W202 Active Member

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    Your Mercedes:
    1997 c200 elegance
    Iv only had the car a fortnight. Il have a look at the wires first. Yep deffo says bosch.
     
  11. OP
    Daves W202

    Daves W202 Active Member

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    The £32 part works fine!
     

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