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Electric parking brake

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  • Strider590 wrote: »
    Wasn't this something to do with preventing the handbrake working whilst the vehicle's moving?

    If an electric handbrake won't apply with the vehicle in motion, where's the emergency/secondary braking system.
  • Strider590
    Strider590 Posts: 11,874 Forumite
    If an electric handbrake won't apply with the vehicle in motion, where's the emergency/secondary braking system.

    Well yes, that's what I was wondering.... But then is that still a requirement these days?
    Was it ever?
    Was it an old wives tail?

    Does anyone know for sure?
    “I may not agree with you, but I will defend to the death your right to make an a** of yourself.”

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  • Strider590 wrote: »
    Well yes, that's what I was wondering.... But then is that still a requirement these days?
    Was it ever?
    Was it an old wives tail?

    Does anyone know for sure?

    A proper and effective handbrake saved us from a serious prang many years ago when the Wartburg i was driving suffered total brake failure.

    Such a thing is a thankfully rare event, but if the electric fad is incapable of stopping the moving vehicle it's about as much use as the proverbial chocolate teapot.
  • poppasmurf_bewdley
    poppasmurf_bewdley Posts: 5,937 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    edited 25 July 2011 at 12:05PM
    If an electric handbrake won't apply with the vehicle in motion, where's the emergency/secondary braking system.

    The secondary braking system is built into your main braking system. Any brake failure of the main system will result in braking power still being available to two of the four wheels - usually one front and one rear. If you look at the brake master cylinder, you will see brake pipes leaving the cyclinder at different heights - the highest going to one front and one rear brake, and the lower going to the other two.

    I don't know what happens in a Reliant Robin three wheeler though!
    "There are not enough superlatives in the English language to describe a 'Princess Coronation' locomotive in full cry. We shall never see their like again". O S Nock
  • Strider590
    Strider590 Posts: 11,874 Forumite
    Oh and RE the electric brake on the Vauxhalls, i've heard it has two settings (explained if you read the manual), one is for holding the car in traffic, the other is the maximum brake setting achieved by pressing the button twice (apparently).
    “I may not agree with you, but I will defend to the death your right to make an a** of yourself.”

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  • B00st
    B00st Posts: 78 Forumite
    The secondary braking system is built into your main braking system. Any brake failure of the main system will result in braking power still being available to two of the four wheels - usually one front and one rear. If you look at the brake master cylinder, you will see brake pipes leaving the cyclinder at different heights - the highest going to one front and one rear brake, and the lower going to the other two.

    I don't know what happens in a Reliant Robin three wheeler though!

    That's just a split in the primary system though.

    The handbrake is completely independent and uses cables so will be unaffected by issues with the main braking system. It's one of the reasons why the effectiveness of the handbrake is checked during the MOT.
  • Lum
    Lum Posts: 6,460 Forumite
    Part of the Furniture 1,000 Posts Photogenic Combo Breaker
    I don't know what happens in a Reliant Robin three wheeler though!

    Just steer really hard and the car will roll onto it's side and quickly slide to a halt.
  • B00st wrote: »
    That's just a split in the primary system though.

    The handbrake is completely independent and uses cables so will be unaffected by issues with the main braking system. It's one of the reasons why the effectiveness of the handbrake is checked during the MOT.

    Yes, but it's also the secondary system, which is what one poster was asking about. I agree with what you say about the handbrake.
    "There are not enough superlatives in the English language to describe a 'Princess Coronation' locomotive in full cry. We shall never see their like again". O S Nock
  • missile
    missile Posts: 11,774 Forumite
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    edited 25 July 2011 at 1:13PM
    ..., but if the electric fad is incapable of stopping the moving vehicle it's about as much use as the proverbial chocolate teapot.
    Electric handbrake does work on an Audi whilst it is motion, but I would not recommend using it:eek:
    "A nation's greatness is measured by how it treats its weakest members." ~ Mahatma Gandhi
    Ride hard or stay home :iloveyou:
  • chrisw
    chrisw Posts: 3,798 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    The Passat brake also works while the car is in motion as a secondary brake. Press and hold the button. Make sure you have a clear road first though. I pressed mine accidentally when I had a Passat and it scared the life out of me.
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