[urq] Fw: Engine Start button?

[Huw Powell]

>> I've had a start button wired in for the past 2 years. Works great. 
>> The ignition switch failed (run works, start does not). I put in the 
>> switch as a temporary fix, but 2 years later still haven't fixed the 
>> switch...
> 
> 
> I put a start button on my former Audi Coupe, when I sold it the next 
> owner commented on how rare it was to have a factory start button!  I 
> did tell him the truth before I finalized the deal.

One thing to keep in mind with these cars is that there are two 
"ignition on" circuits - one that is always on with the key in "run" or 
"start", and the other, the load reduction relay circuit ("X" on 
diagrams) which is only on in the "run" position.

This lowers the electrical load while starting by disabling headlight 
and some other stuff while in "start" mode.

Might want to use a double pole/double throw pushbutton that disconnects 
the LRR while cranking...

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/