1991 BMW M5 Service and Repair Manual

This factory service and repair manual for the 1991 BMW M5 documents a four-door sedan with a 3.6L inline-six, double overhead camshafts, naturally aspirated, gasoline. Displacement is the year's distinguishing number, and the engine chapters are written to it, with the clearances, torque sequences and fuel, ignition and cooling values that belong to that specific six. Chassis, driveline, brake, suspension, steering and body electrical coverage follows in its own sections, each with the diagrams and diagnostic procedures it needs.

Engines covered

• 3.6L inline-six — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 1991 M5. Work on a car like this is mostly measurement, and the manual is where the measurements live. It gives assembly and adjustment figures for the inline-six and its ancillaries, the pressures and clearances that make a diagnosis defensible, and torque values for everything that gets bolted back on. Chassis material covers the brakes, suspension and steering of the sedan with the same specificity, and the wiring diagrams cover the lighting, charging, starting and comfort circuits as originally built.