2018 BMW 740i xDrive Service and Repair Manual

This factory service and repair manual for the 2018 BMW 740i xDrive answers a short question with a long body of procedure: one engine, one body, one trim. The engine is a 3.0L inline-six, double overhead cam, turbocharged, on gasoline; the body is a four-door sedan; the trim is Base. With no variant branches to follow, the specification tables read straight through, and the diagnostic charts lead to a single set of expected values rather than to a matrix of them that has to be narrowed first.

Engines covered

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

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2018 740i xDrive. Coverage runs from the crankshaft outward. The inline-six section gives disassembly and reassembly order with torque values and clearances, the turbocharger and its boost control get their own tests, and cooling, lubrication, fuel and ignition each carry the measurements needed to confirm a repair. Away from the engine, the manual sets out service for the xDrive driveline, brake and suspension specifications for the sedan, and body and comfort electrical work — climate, lighting, doors, glass — tied to the wiring diagrams that serve them.