2008 BMW 328xi Service and Repair Manual

This factory service and repair manual for the 2008 BMW 328xi is organized around a drivetrain that does not change across the range: one 3.0L inline-six, double overhead cams, naturally aspirated, gasoline, driving all four wheels in a car offered as a sedan, a wagon and a coupe. With a single trim listed, the specifications, torque values and diagnostic charts apply to whichever of the three shells is on the lift, and only the body and wiring sections split by shape.

Engines covered

• 3.0L inline-six — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan
• 4-door wagon
• 2-door coupe

Trims covered

• Base

Known issues on the 2008 328xi. What the manual does best on a car like this is keep the mechanical and the electrical honest with each other. The six-cylinder gets its clearances, timing procedure and torque figures; the cooling system, fuel delivery and ignition get their test values; the transfer case and differentials get fluid specifications and service steps. The wiring diagrams then follow the circuits through the sedan, wagon and coupe bodies, so a fault chased from a fuse to a module ends at the right connector.