Will unplugging a Reach Now sensor make a car shut down from electrical issues?
I recently bought a mini clubman from a used car dealership that was
previously part of BMW's Reach Now program. The car still had the sensor on
it and the day after we bought it we unplugged the sensor. That evening while I
was driving it the car just completely shut off and the dash said: "Drivetrain:
Stop and turn off engine. Secure parking brake. Please call Roadside
Assistance.” The dealership towed the car back to their lot the next day and
since then have been avoiding our phone calls and only occasionally
responding to texts. Finally, after 10 days, and because I texted that I was
going to go to the lot to talk to someone because they weren't answering
phone calls, they said that the issue was that we had unplugged the sensor.
They also said it would be impossible to give us an estimate of when the car
could be fixed and that we were not allowed to show up to their dealership.
Aside from the obvious unprofessionalism of the dealer, is it possible for a car
to shut down like that from unplugging a sensor? And what is a reasonable
amount of time to let the dealership keep our car?