Originally Posted By: mattd
BMW fluids are supposedly "lifetime" fluids. Minus engine oil of course.
I'm pretty sure that coolant is on either the 3 or 4 year interval schedule. I suppose it may depend on which BMW you have and when exactly it was built.
The OE blue BMW G-48 isn't considered "lifetime" anywhere I've ever seen. On my E39 the driveline fluids are stated as "lifetime" (as in catch, store, and replace the old fluid if you open the system for service), PS is overlooked, coolant is 4 years, brake fluid is 2 years, IIRC.