I have started to work on my BMWs a lot more than ever- I have owned 5from e30,e36,e46 to 540i- always used to go to a stealership for everything. I am always surprised at how much we pay here in OZ compared to OS for parts.
Anyway I have found a guy in WA who is very cheap and will always give me advice- he even has given me some stuff for free.
I am not affiliated in any way- just a satisfied customer.
If any of you want to contact him his name is Darren Mitchell and email is
BMW@repairman.com
He seems to know all models back to front.
Hope this helps some of you.