2018 BMW 430i xDrive Service and Repair Manual

This factory service and repair manual for the 2018 BMW 430i xDrive addresses a two-door coupe and a two-door convertible, both in Base trim, both carrying the 122-cubic-inch 2.0-liter inline-four with double overhead camshafts, turbocharged and fueled by gasoline. The convertible is the harder of the two to service, and the manual treats it as such, documenting the roof mechanism, its drive, its adjustment and the seals it closes against alongside the structure the open body depends on.

Engines covered

• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 2-door convertible
• 2-door coupe

Trims covered

• Base

Known issues on the 2018 430i xDrive. The shared material underneath is no less specific. Engine work comes with clearances, tightening sequences and torque values; cooling and charge-air circuits with service specifications; fuel and ignition with module-level diagnostics; the transmission, driveshafts and axles with tolerances and fluid data. Chassis sections give brake, steering and suspension procedures and the alignment settings that follow, and wiring diagrams show each body's lighting, climate and comfort circuits with connector views.