Quote:
|
Originally Posted by DT_
Map cooling control is referring to your electronically controlled "Map" thermostat. BMW's do not use Map sensors. You may have a faulty (stuck open or closed) thermostat for the cooling system.
|
BMW does use MAP sensors in fact the P1620 code is BMW specific for a MAP related system error. It has nothing to do with the cooling system. I think looking at each code as a unique problem is going to be the long way around, The voltage problem at the O2 sensor is probably causing chaos with other systems.