2003 BMW M5 Service and Repair Manual

This factory service and repair manual for the 2003 BMW M5 is a single-body, single-trim book covering the four-door sedan and the two V8 engines listed for it, a 4.9L of 302 cubic inches and a 5.0L, both with twin overhead cams and no forced induction. Engine coverage runs from mechanical assembly through fuel, ignition, cooling and emission control with specifications and torque values throughout, followed by driveline, chassis, climate and body electrical sections written for the sedan.

Engines covered

• 4.9L V8 (302 cu in) — DOHC, naturally aspirated, gasoline
• 5.0L V8 — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2003 M5. One recall is on the federal record, covering a driver air bag inflator that can burst when it fires and drive metal fragments into the cabin at the exact moment the restraint is supposed to work. The 18 owner complaints recorded for this year cluster on air bags with seven, the electrical system with three and steering with two. The restraint circuits, the charging and body wiring diagrams, and the steering system's adjustment and diagnostic procedures are the sections that bear directly on all three.