Quote Originally Posted by 525i winter driver View Post
welcome to the e34 club, there's this amazing website you should know about .

my overheat was the pump... po had replaced the radiator, pipes, thermo, fan, and motor(!) but not the pump... engine ran smooth air came out cold in the vents even at high engine temperature.
Looks like the fan clutch, rad, hoses, thermostat and pump is new. I had to fill up the rad with another 4 liters of distilled water...
Could be that they didn't know how to fill up and bleed the M50 engine, they can be tricky sometimes, not all shops know how to do it.

As for the locks locking and unlocking non stop, I think it is due to someone hacking into the harness to install then partialy remove the remote starter...
ARG, I hate electrical grimlins.