Bought this 535i a couple of weeks ago. It has been well maintained judging by the service records, however it has 100K miles on it and is due for a cooling system overhaul.

I have already replaced the Upper Radiator Hose. Plastic connectors had gotten brittle. Also, radiator appears to be in good shape. Did a flush and fill, and coolant (besides being green stuff) was clean and clear with no debris or sludge whatsoever.

Does anyone have a diagram of the other hoses in the cooling system? I have to believe that other plastic is getting brittle, too.

Any suggestions as to what I should replace will be appreciated!

Thanks!

 

Go to realoem.com and put your vin in there. That will give you diagrams and part numbers.

 

Thanks, I will check it out!