2006 BMW 650i Service and Repair Manual

This factory service and repair manual for the 2006 BMW 650i opens on a large naturally aspirated engine in a small model range: a 4.8-liter V8 with double overhead camshafts running on gasoline, one Base trim, and two bodies, a two-door coupe and a two-door convertible. Everything ahead of the firewall is common ground, so the V8's mechanical clearances, valve gear service and fuel and ignition specifications apply to either car, and the split comes later, in structure, sealing and the roof hardware unique to the convertible.

Engines covered

• 4.8L V8 — DOHC, naturally aspirated, gasoline

Body styles covered

• 2-door convertible
• 2-door coupe

Trims covered

• Base

Known issues on the 2006 650i. A V8 of this size rewards precise work, and the manual is built for it: engine mechanical procedures with bolt torque and tightening sequences, timing drive and valve train service, fuel delivery and ignition diagnostics, cooling and lubrication specifications, then the drivetrain, brake, steering and suspension chapters that follow. Body coverage takes in the coupe's structure and the convertible's top mechanism, its drive and its seals, and wiring diagrams run through the lighting, comfort and instrument circuits so a fault can be traced across the harness.