Steer clear of the BMW service deaprtment. They were identifying unecessary repairs on a complete replacement of power steering unit for my 740i. When I took it to an independent automotive service provider they showed me where a clamp had come loose on a hose. Buyer beware.
Al and his crew work on our BMW and Volvo. Much more reasonably priced then the local dealers and very honest. They stand behind their repairs and are knowledgeable of required service intervals. They aggressively search for highest quality, lowest priced parts for imports from a large northwest geography. I highly recommend this firm if you are tired of being ripped off by your dealership.