1990 BMW 750iL Service and Repair Manual

This factory service and repair manual for the 1990 BMW 750iL covers a four-door sedan with a 5.0L SOHC V12 under the hood, naturally aspirated and running on gasoline, in a single Base trim. With no options in the powertrain range there is no ambiguity in the specifications: one set of valve clearances, one ignition arrangement, one fuel delivery layout, applied to every car this book describes. The chapters follow the vehicle from the engine outward through driveline, chassis and body electrical work.

Engines covered

• 5.0L V12 — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 1990 750iL. Two owner complaints appear for this model year, one on the electrical system and one on the seats, too few to form a pattern though both fall inside what this manual documents. Electrical faults are pursued through wiring diagrams showing the sedan's circuits end to end, along with the diagnostic steps for isolating them; seat and interior work is covered by removal and installation procedures with the fastener torque values they require. The V12's own procedures occupy the larger part of the book.