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 […]
Topic: DIY Repairs & Mods
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. […]
Radiator Replacement M70 (V12)
Article by: Sean Article applies to: all e24, e28, e32, and e34 models (some details regarding automatic transmission lines to not apply to models with standard gear boxes). Problem: Leakage of coolant at the point where the upper trans-cooler connection is attached to the radiator body. This is just below […]
MAF Troubleshooting M70 (V12)
Article by: Sean Article applies to: all models with the M70 V12 engine. Problem: People who often visiting this site are probably aware of my ongoing problems with hesitating, surging, running rough, erratic idle, hunting idle and stalling when accelerating. Folks who have some years of experience with working on […]