2024 BMW 740i xDrive Service and Repair Manual

This factory service and repair manual for the 2024 BMW 740i xDrive covers a four-door sedan whose engine is listed as a 3.0L inline-six mild hybrid — double overhead cam, turbocharged, gasoline — in a single Base trim. That designation changes how the engine sections read, since the mild hybrid hardware is treated as part of engine service rather than set off in a chapter of its own. Procedures, specifications, torque values, wiring diagrams and diagnostics are grouped by system so mechanical and control work on one assembly stay together.

Engines covered

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

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2024 740i xDrive. Work on this car begins with the same fundamentals as any turbocharged six — timing drive, valvetrain, oiling, cooling, charge-air routing — each with its clearances and tightening order. Fuel and ignition diagnostics follow, then the driveline procedures for the xDrive hardware. The chassis sections specify suspension, steering and brake service; the body sections cover climate control, lighting, doors and glass. Throughout, the wiring diagrams show the sensors, actuators and control modules of each system and the paths between them, which is what a mild hybrid powertrain asks for most.