Brake hold feature stopped working

Discussion in 'AMG Lounge' started by Brunty88, Aug 31, 2017.

  1. Brunty88

    Brunty88 Hardcore MB Enthusiast

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    Anyone had this and or know a fix or possible solution ?
     
  2. Bryan Allman

    Bryan Allman Hardcore MB Enthusiast

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    I had it on my E55 some years back and strangely the cause of the failure was to do with wear in the gear selector lever. It required a new switch mechanism (covered by Tier 1).

    I have no idea how the two are connected - but after the switch had been replaced, all back to normal.

    Star will pick up the fault and give you the solution on the C63.
     
  3. 55AMGsuperchare

    55AMGsuperchare Member

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    As above but I also saw a vid on youTube where the problem was the aux battery which needed changing?
     
  4. icarus51

    icarus51 New Member

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    When mine stopped working it was associated with the drivers door courtesy light switch.

    Sent from my Moto G (4) using Tapatalk
     
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  5. 400ixl

    400ixl Hardcore MB Enthusiast

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    Does the stop start still work, that is usually the clue as to whether it is the Aux battery as the eco option stops going green as well.
     
  6. bazzabear

    bazzabear Hardcore MB Enthusiast

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    It doesn't have stop start. Or at least my C63 doesn't seem to!

    In another nod to fuel economy being for people who don't choose a car with a 6.3 litre engine, most of the fuel economy readouts that are available on other W204 models are missing from the C63 too. We only get the readout since reset, and since journey started. No graphs, and no instant readout.
     
  7. bazzabear

    bazzabear Hardcore MB Enthusiast

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    Oh, and because there's no start stop, I'm reasonably sure we don't get the aux battery either.
     
  8. OP
    OP
    Brunty88

    Brunty88 Hardcore MB Enthusiast

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    As above it's a c63
    Looks like a dealer trip
     
  9. gianton

    gianton Hardcore MB Enthusiast

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    Brake hold was not working on my car when I got it 7 months ago and it was fixed after a brake fluid change.


    Sent from my iPhone using Tapatalk Pro
     
  10. 400ixl

    400ixl Hardcore MB Enthusiast

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    Stop start is aimed at manufacturers meeting the emissions targets rather than economy really.

    Could be one of a number of sensors which the HOLD system will use to decide whether it should deploy or not. Best to get it on a diagnostics machine at a local indie I would have thought.
     
  11. 55AMGsuperchare

    55AMGsuperchare Member

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    Just changed the both battery's on mine and my SBC H still doesn't work.
     
  12. mersum1es

    mersum1es Hardcore MB Enthusiast

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    Like mentioned, gear selector module minor fault has been often culprit... and its true any related sensor malfunction disables it. Transmission, doors, wheel speed, brake pressure etc.
     
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  13. b1g1an

    b1g1an Hardcore MB Enthusiast

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    If it was battery related it would've just been the front one but it would also have come with a big red unmissable warning in the middle of the dash.
     
  14. Petrol Pete

    Petrol Pete Hardcore MB Enthusiast

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    Good Christ...is it any wonder people are scared of buying used modern cars these days.

    Have a look at what has just been discussed.

    It could be...a battery (or two), a door switch..a gear selector module..a brake fluid change required...wheel speed sensor.. Uranus is not aligned with your moon.

    Just to get the thing to pull away on a hill.

    We're doomed, we're doomed Mr Mainwaring !
     
    1 person likes this.
  15. 55AMGsuperchare

    55AMGsuperchare Member

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    Yep your right. I was going by this youtube vid which shows the red warning
    https://youtu.be/6l20UMf3oT8
     

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