c270 cdi epc error only on kickdown

Discussion in 'Engine' started by mbc270cdiscott, Sep 14, 2014.

  1. mbc270cdiscott

    mbc270cdiscott New Member

    Messages:
    9
    Joined:
    Sep 14, 2014
    Location:
    essex
    Car:
    c270 cdi
    hi there iv just got this problem on my 2003 c270 cdi ,when you hit kickdown i get a epc light flash then go away ,so i dont get any kickdown power ,but if i put my foot down to the point just before kickdown button endless power ,

    any help will be appreciated

    many thanks scott
     
  2. panason1c

    panason1c Hardcore MB Enthusiast

    Messages:
    1,141
    Joined:
    Feb 20, 2005
    Location:
    Somerset
    Car:
    ML270cdi, VW Polo 1.9 tdi, BMW K1200rs
    I would suspect the throttle potentiometer to be faulty (the small unit under the bonnet, nearside and close to the bulkhead, what the throttle cable connects to)
     
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  3. OP
    OP
    mbc270cdiscott

    mbc270cdiscott New Member

    Messages:
    9
    Joined:
    Sep 14, 2014
    Location:
    essex
    Car:
    c270 cdi
    great thanks i will try that ,one thing i noticed is that when i put ignition position 2 so lights are on dash,then put my foot on throttle pedal and touch kickdown button same flash comes up without the engine on at all.

    cheers panason1c i will try that
     
  4. panason1c

    panason1c Hardcore MB Enthusiast

    Messages:
    1,141
    Joined:
    Feb 20, 2005
    Location:
    Somerset
    Car:
    ML270cdi, VW Polo 1.9 tdi, BMW K1200rs
    Definitely worth trying another potentiometer.....(throttle position sensor)

    MERCEDES ML 270 CDI '03 W163 ACCELERATOR THROTTLE POSITION SENSOR A0125423317 | eBay
     
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  5. OP
    OP
    mbc270cdiscott

    mbc270cdiscott New Member

    Messages:
    9
    Joined:
    Sep 14, 2014
    Location:
    essex
    Car:
    c270 cdi
    thanks mate changed throttle sensor iv got kickdown

    happy man thank you again
     
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