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Soft top not working - now fixed

Discussion in 'Z3 Roadster & Coupé' started by Brian4, Jan 5, 2013.

  1. Brian4

    Brian4 Zorg Guru (IV)
    British Zeds East Anglian Crew

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    Last Sunday I thought I would go out as it was a nice day so got ready, started car, got roof ready and pressed lower button - nothing. tried again checked brake was on checked roof switch was operated still nothing.

    Checked all fuses as you do so I then got the wiring diagram out and started checking circuits. I had lowered the roof manually by this time to see if it would come back up but nothing, but whilst I was sat in the car with the boot open I looked back and noticed I had no brake lights and sure enough the switch had an intermittent fault on it. I had passed the MOT 2 weeks before.

    Anyway I have replaced the switch from Euro car parts and all is ok again so if your roof won't lower check first you have brake lights before you delve any deeper and save wasting a day.

    There was also a gearbox fault showing and the brake switch is wired through the 2 computers along with the gearbox so I left the battery disconnected, whilst waiting for the switch, and all faults have been reset so will be out next sunnyish day.

    Brian
     
  2. EnthuZiaZT

    EnthuZiaZT Zorg Guru (V)
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    Great news, Brian & Sheila, that will hopefully be the wind in your hair feeling tomorrow then! :-bd ,

    See you in Feb at the Meguiar's meet, are you stopping for a bite to eat?

    Mike & Sandy
     
  3. Frank.A

    Frank.A Zorg Addict

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    The instruction manual states you should operate roof with the engine running to ease the load on the battery.What I have experienced is the roof won't operate without the engine running due to the brake pedal not operating the brake light switch.This is due to the extra movement of the pedal when the servo is evacuated with engine running. 8-|
    This could be worth checking if the roof fails to operate, engine off.
     
  4. Brian4

    Brian4 Zorg Guru (IV)
    British Zeds East Anglian Crew

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    Hi Frank. I had started the car '(o got ready, started car, got roof ready and pressed lower button - nothing.)' and even with the switch out of the car it wouldn't work unless I very quickly released the plunger. If I let it go slowly as if I was putting my foot on the brake it wouldn't work. All I was saying is if the roof fails to operate check your brakes lights before going further.


    Happy motoring

    Brian