2020 BMW 740i xDrive Service and Repair Manual

This factory service and repair manual for the 2020 BMW 740i xDrive covers a single-trim car — Base only — in a four-door sedan body, with a 3.0L DOHC inline-six that is turbocharged and gasoline-fueled. Forced induction shapes much of the engine material, since boost control, charge-air routing and the cooling load that comes with them all carry their own checks. The rest is conventional service organization: mechanical procedures, specifications and torque values first, then the diagnostics and wiring diagrams that confirm the work was done right.

Engines covered

• 3.0L inline-six — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2020 740i xDrive. Engine coverage takes the inline-six down through the timing drive, valvetrain and oiling system and back up with the tightening sequences that close it, and the fuel and ignition sections give the test values that isolate a misfire or a lean condition. Driveline material covers the xDrive components and their service tolerances. The chassis sections deal with suspension, steering and brakes, the body sections with climate control, lighting, doors and glass, and the wiring diagrams tie the sensors and actuators of each system back to the modules that command them.