Roof switch-Brake delete
- Thread starter jaguartvr
- Start date
not if you break the circuit that comes from the brake pedal to the roof relays, then join the new live on the relay side.
- Joined
- Feb 18, 2016
- Points
- 231
- Model of Z
- Z3M Imola and Z4 (e89)
Don't forget the system is there to ensure you don't operate the roof when driving (too fast) and bending the roof frame, it will act like a wind brake and its not designed to tolerate high wind pressure 
- Joined
- Jul 26, 2020
- Points
- 74
Why not move the roof switch to the front panel?
So, you are afraid that you won't be able to unlock your car?
You know the car can be opened with the key, both doors are independent mechanialy.
The roof can be lowered manually by relieving the pressure at the roof motor in the trunk.
Maybe I am misunderstanding what you are saying?
I have not ever heard of a Z3's door locks or door latch release failing simultaneously.
Again, sorry if I misunderstand your fear.
You know the car can be opened with the key, both doors are independent mechanialy.
The roof can be lowered manually by relieving the pressure at the roof motor in the trunk.
Maybe I am misunderstanding what you are saying?
I have not ever heard of a Z3's door locks or door latch release failing simultaneously.
Again, sorry if I misunderstand your fear.
So I assume you have added a locking mech addition for the car to self lock then ? As you have taken the key lock away from the door, what happens with a flat battery ? Still puzzled as to how you would get the roof down without being able to open the car door itself. You need to unhook the two catches for a start.
Wooahh steady on,
no need for any of that..
On the ZKE A104 module behind the glovebox you will see 3 plugs, black, purple and green
The middle purple one (X13253) is where the magic happens
Applying +12v to the Blue/Red/Yellow wire on that plug (terminal 4) will unlock all the doors.
run 12v from a switch in the boot to that wire and when you press it you will unlock everything..
You can also lock the doors and roll up the windows on other inputs on that plug.
I like Pete‘s suggestion, my idea would be rather than delete the brake switch system I would move the option to maybe a switch on the dash?
Tony.
Tony.
reason I suggested boot is, he can still get into there when the car is deadlocked (through his new handle lock) he can't get to dash
jaguartvr
Zorg Guru (I)
- Joined
- Jan 9, 2017
- Points
- 95
Switch on the dash would be an option but I would rather do away with it. I have an SL Merc that has a similar brake switch that won't allow you to move out of park unless your foot is on the brake, The switch fails (twice on mine) and locks the gearbox in park, but the brake lights still work.
A wire to the module would solve all my problems. It is one of the problems that all Z3 kits with door skins suffer and nobody yet has come up with a solution. If it works the could be a half-pint in it for gookah!
A wire to the module would solve all my problems. It is one of the problems that all Z3 kits with door skins suffer and nobody yet has come up with a solution. If it works the could be a half-pint in it for gookah!
well why didn't they just ask me.....?
I know it works, I have a centre console switch that does exactly that.
The reason I have it is that my Carvox alarm deadlocks the doors on driving off.
I can only unlock them if I switch off the ignition (or the airbag crash circuit triggers the unlock),
if I want to let the passenger out without switching off the ignition (or crashing
) I can do that by operating my switch.If you notice my console has an ASC switch and a DSC switch
The DSC is the door unlock, wired with an ignition live to the switch, with the switched output to that blue/red/yellow wire as described before
DSC = Door Security Cancelled...
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