2011 BMW 550i Service and Repair Manual

This factory service and repair manual for the 2011 BMW 550i covers a four-door sedan in Base trim with a turbocharged 4.4L DOHC V8 on gasoline. Forced induction changes what a technician needs from the engine chapters: charge-air routing, boost control, the heat the system generates and the cooling that answers it are part of engine work here, not a separate topic. Specifications, clearances and torque values are given with each procedure, and diagnostics follow the same system-by-system order through the rest of the car.

Engines covered

• 4.4L V8 — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2011 550i. Three recalls are on the federal record. One covers an electrical circuit board that can overheat and start a fire. Another concerns replacement sensor cluster units whose acceleration sensor may be programmed incorrectly, so air bags, belt pretensioners and active head restraints may not activate as a crash requires. The third involves in-tank fuel pump wiring crimped too loosely, which can melt the connector, leak fuel or stop the pump and stall the engine. Of 172 complaints, tires lead at 41, steering at 23 and the power train at 20.