bwells

Unfortunately, I have no idea whether they are the same or not. It seems that no one really does know - unless you have the old one to compare to, you're a bit lost. If someone would be so kind as to read the actual code numbers off their own 735i air con pump, that would probably go a long way towards solving the problem. Thanks for your help guys - it's much appreciated

Thanks a lot for that. I'll forwrd that on to the dealer and see if they can help more

I had one of those cars when I lived in the UK and it overheated too. I notice someone else mentioned the viscous fan couplng. Mine was that problem too - replaced the coupling and overheating problems gone. After the fix it would idle in traffic in mid-summer as long as you liked and not overheat. Before the fix, it only took about ten minutes in that situation to boil.

I am currently looking at buying a 1989 735i that has a missing air conditioning compressor. To try and get a correct replacement for it, I need the old one to get code numbers off of it . Unfortunately, the old compressor was binned years ago. Could someone with a similar car please help me with code / model numbers from their own compressor? This would be a great help