hesitation prior to kickdown

Discussion in 'Engine' started by cmarkod, Jun 25, 2008.

  1. cmarkod

    cmarkod Active Member

    Messages:
    70
    Joined:
    May 14, 2008
    Location:
    Nr Manchester
    Car:
    w211 220CDi
    Over the last couple of weeks my car seems to have developed a longer delay from flooring it to kicking down. Also feels slower from a standstill. Moving acceleration stills feels ok though. Any ideas??
     
  2. columb

    columb Active Member

    Messages:
    461
    Joined:
    May 11, 2008
    Location:
    Exeter, Devon
    Car:
    W212
    Slepping gearbox?
    I have same problem :(

    It feels like 10% power loss? When from a standstill? And it is intermittent?

    Cheers
    Chris
     
  3. Gollom

    Gollom MB Enthusiast

    Messages:
    4,313
    Joined:
    May 10, 2006
    Location:
    Preston, Lancs
    Car:
    S211 E220CDi AvantGarde, NTG 2.5 with Linguatronic
    Mine is doing it also. Bit dangerous sometimes too!

    Spoke to Olly at the GTG and he said it could be a sticking turbo switch or something? I'm sure he'll be along to comment soon
     
  4. colinhelen

    colinhelen Member

    Messages:
    38
    Joined:
    Jun 24, 2008
    Location:
    Portsmouth area
    Car:
    e320 cdi estate 2002
    I am no expert but mine is suffering the same thing and it has been diagnosed as the EGR valve stuck open. The garage has blocked it off somhow pending a new one at £300 plus VAT plus fitting (possibly new solenoid too) but with the temporary fix, car is running much better.
     
  5. nbgianna

    nbgianna New Member

    Messages:
    9
    Joined:
    May 29, 2007
    Location:
    GREECE
    Car:
    MB E200 W211
    Try this.
     

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    Last edited: Jun 25, 2008
  6. OP
    OP
    cmarkod

    cmarkod Active Member

    Messages:
    70
    Joined:
    May 14, 2008
    Location:
    Nr Manchester
    Car:
    w211 220CDi
    Thanks nbgianna. I'll give this a try. Its booked in for a service next week anyway so I'll ask them to check if I get no joy, although I've not used this garage before so not sure how techy minded they are:rolleyes: (Mercedes Whitefield).
     
    Last edited: Jun 26, 2008
  7. nickcc101

    nickcc101 Active Member

    Messages:
    355
    Joined:
    Aug 4, 2007
    Location:
    Helston Cornwall
    Car:
    2001 S203 C180 auto estate (sold)
    Wouldn't have thought it was turbo related as turbo on most cars doesn't kick in until over 2000 rpm. This of, course, is only my opinion.
     
  8. Dieselman

    Dieselman Banned

    Messages:
    34,206
    Joined:
    Jul 13, 2003
    Car:
    Peugeot 403 Convertible
    I'd go with sticking EGR valve causing lack of oxygen when first coming off idle.

    Any smoke?
     
  9. Dieselman

    Dieselman Banned

    Messages:
    34,206
    Joined:
    Jul 13, 2003
    Car:
    Peugeot 403 Convertible
    I'd be interested to know how they have done this as the EGR valve operation is monitored by the MAF sensor, unless the MAF is going duff, then it will ignore it.

    It is possible to turn down the EGR percentage so maybe that's what they have done, but I'd be surprised.
    If it's possible to continue to run without the EGR valve operational then that's a good option.
     
  10. OP
    OP
    cmarkod

    cmarkod Active Member

    Messages:
    70
    Joined:
    May 14, 2008
    Location:
    Nr Manchester
    Car:
    w211 220CDi
    Weel problem sorted. The gearbox was losing oil through a busted seal. Now replaced and running as usual....
     
  11. rf065

    rf065 MB Enthusiast

    Messages:
    4,109
    Joined:
    Jun 8, 2007
    Location:
    Grossbritannien
    Car:
    SLC300 - C250d Estate 4 Matic & Z900rs

    Not very good English, has anyone done this who could rewrite the instructions so as there is no ambiguity?

    "
    You must put the key switch of engine on position 2 ( All the warning lamps turned on ) (Don’t start engine).
    Push the throttle full down and hold for 5 sec..
    Turn off the key switch without to leave the throttle.
    Leave the throttle
    Wait 2 min for reset .
    After that start engine and drive the car"
     

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