2021 BMW M8 Gran Coupe Service and Repair Manual

This factory service and repair manual for the 2021 BMW M8 Gran Coupe treats a four-door sedan built in Base and Competition form, each with the turbocharged 4.4L DOHC V8 burning gasoline. Two specifications, one engine: that arrangement means the mechanical sections read the same for either car, while the equipment differences are handled in the body and electrical chapters. Specifications, torque values, wiring diagrams and diagnostic routines are given per system throughout the book.

Engines covered

• 4.4L V8 — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• Competition

Known issues on the 2021 M8 Gran Coupe. Routine service is where the manual is specific: engine mechanical repair with published clearances and tightening sequences, cooling and lubrication procedures for a V8 that makes considerable heat, charge-air and boost control checks, fuel and ignition testing, wiring diagrams for the sedan, and diagnostic routines that identify which control unit recorded a fault and how to confirm the repair.