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Help!!! Automatic Gear Over-revs

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by DannyMit88, Mar 8, 2019.

  1. DannyMit88

    DannyMit88 New Registration

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    Your Mercedes:
    A180 AMG Sport 2013 1.8D
    Hi, new to this forum!

    I have a Mercedes A Class AMG Sport 1.8,

    Manual Gear paddles, Auto Economic and Auto Sport gear shift settings,

    When in auto, the car occasionally gets to 3rd gear, then instead of shifting up to 4th it will over-rev and then jolt and shift up to 4th.

    Any ideas what this could be? I am short on the cash atm so hoping nothing major!

    I am due a Service B but cant afford the £900 quotes by Mercedes!

    Help!
     
  2. umblecumbuz

    umblecumbuz Senior Member

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    Your Mercedes:
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    DannyMit88 likes this.
  3. Chrishazle

    Chrishazle Senior Member

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    Your Mercedes:
    S204 2008 C220CDI Elegance Estate Auto, 2008 R171 Facelift SLK280
    Sounds like the first thing you need to find is a reputable MB indie near you rather than using the MB main dealer! Post your approximate location and you'll get recommendations from forum members!
     
    rifiki and Dean Fletcher like this.
  4. CowleyStJames

    CowleyStJames Senior Member

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    Your Mercedes:
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  5. LostKiwi

    LostKiwi Senior Member

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    Your Mercedes:
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    Needs a diagnostic session on Star. It may be a failing electroplate but a Star session will confirm.
     
  6. malcolm210

    malcolm210 Senior Member

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    Could be the gearbox ECU needs a software upgrade or is faulty and needs replacing, hope it’s the former
     

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