Article by: Winston Fong Article applies to: all E32 and E34 models. Remove the cover to the AC sight glass and fill valves, located by the passenger side firewall. Look at the sight glass. If you see a lot of bubbles and the AC has trouble cooling you’ve probably found […]

Article by: Johan Article applies to: all e32 and e34 models. Problem: The heater is on full ALL of the time. It can also happen that you have no heat at all. If you have no heat and unplugging the plug on top of the heater valve gives you a […]

Article by: Johan Applies to: all e32 and e34 models. Introduction: The IHKA system (Intergriertes Heizung und Klima Automatic) is probably one of the systems that will cause you some major headaches over the course of your E32 ownership. The system seems really complex, but once you get a better […]

Article by: Johan Applies to: all e32 and e34 models. Problem: There is no air coming from the rear ventilation ducts. Background info: The rear air ducts will only blow fresh air or air conditioned air. So there will be no heat coming from this duct. There are two wires […]

Article by: Toni Kosec Applies to: all e32 and e34 models – that are equipped with a cabin micro filter (not all are). Problem: The air conditioner micro filter gets clogged up over time with all the dirt that would otherwise end up inside the IHKA/IHKR system or your car. […]