Article by: Johan Applies to: all e32 and e34 models. Problem: Only cold air comes from the center vents. There have been discussions on various message boards that this is supposed to be normal. Granted it’s not supposed to blow out hot air, like the demister and foot well vents, […]
Topic: DIY Repairs & Mods
AC R134a Retrofit
Article by: Johan Models: All E32s and E34s with an R12 air conditioning system. Includes E31 models with the V12 engine. Problem: My air conditioning system was empty when I bought the car. I had it charged by a so called “air conditioning specialist”. All they did was put in […]
Air Conditioner Seals
Article by: Johan Article applies to: all e32 and e34 models. Problem: My R12 air conditioner system was leaky when I got the car. Upon converting it to R134a I decided that the best way to go was to replace all of the O-rings in the system. Replacing the […]
VCV/PCV Valves M70 (V12)
Article by: Sean Article applies to: all BMW models with the M70 V12 engine. Problem: there are 2 known problems areas when you are suffering from an unusual high oil consumption. Problem one is worn valve stem seals, and problem two is faulty VCV valves. Both issues are causing the […]
Water Pump Replacement M70 (V12)
Article by: Sean Article applies to: all BMW models with the M70 V12 engine. Problem : those Germans can’t build decent water pumps and if you see them, you can tell Sean750 said so. Throughout the years, I replaced dozens of pumps on lots of German cars, sometimes a couple […]
Valve Stem Seals M70 (V12)
Article by: Sean Article applies to: all models with the V12 M70 engine. Problem: Smoking engine. At first I thought the massive oil consumption was also related to the worn valve stem seals, but later (after replacement of the seals) it proved I was wrong, at least in this case. […]