First Day of Summer - AC Woes

[tankowner]

Originally Posted by upallnight

System pressure is NOT the correct way to recharge an AC system. The correct way is to remove all the refrigerant from the system and refill base on the the weight of refrigerant as measured with a digital scale. That is why there is no BMW specification for system pressure.

Yeah, understood, but it seems like most manufactures provide a range of low and high pressures under which the system can be assumed to be functioning properly given the correct mass of refrigerant is present in the system and adjusting for ambient temps. Knowing some baseline pressures would also help diagnose problems when they arise.

If BMW doesn't provide pressure specs, do you happen to know the mass of the refrigerant to be added?

Thanks again.