2018 BMW 440i Gran Coupe Service and Repair Manual

This factory service and repair manual for the 2018 BMW 440i Gran Coupe adds a second trim to the listing, M Sport alongside Base, without changing anything beneath it. The engine is the 3.0-liter inline-six, twin-cam, turbocharged, gasoline; the body is the four-door hatchback. Mechanical procedures and specifications therefore hold for both trims, and the difference between them belongs to the equipment sections and to the wiring diagrams that show what each one carries.

Engines covered

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

Body styles covered

• 4-door hatchback

Trims covered

• Base
• M Sport

Known issues on the 2018 440i Gran Coupe. A technician using this book works from numbers rather than from judgment. The six-cylinder's assembly torques and clearances are given, as are the pressures and test values for its fuel, ignition, boost and cooling systems, and the diagnostic charts that follow a fault to its source. The chassis is documented the same way, through driveline, brakes, suspension and steering, and the electrical section maps the hatchback's circuits across both trims, connector by connector.