Z4 E85 Won't Start After Taking Out the Radio and Heater Control

[Alex Funnell]

Hi Guys,
Not posted on here for a while but I have had a problem meaning I now can't drive home from my parents. I was investigating why my blower doesn't work and the famous final stage resister you can't get any more. Anyway I took the radio and blower control out to check if the potentiometers were working properly as I wasn't receiving the control voltage in to the FSR. Having put it back together the car will no longer start. I thought perhaps I have tripped the immobiliser but haven't found anything online to solve my problems so I thought I would ask here. I have tried leaving the battery unattached for a while to try reset the system but still nothing. The car cranks but doesn't fire up.

Any ideas?

 

[Alex Funnell]

Got the breakdown guys out. They couldn't fix it. It has an immobiliser fault and also it says failed to connect to ECU, they suggested I take it to BMW

 

[Antm72]

Its not blown any main fuses has it, seems odd unless somethings become unplugged/ disconnected by accident when in behind the dash.

 

[Alex Funnell]

You were right BMW said it was fuses. It's a bit annoying as I looked at them all and the breakdown guy tested them all. £192 for BMW to tell me that