2006 BMW 120i Service and Repair Manual

This factory service and repair manual for the 2006 BMW 120i documents three trims — Base, Dynamic and Style — across two hatchback bodies, one with two doors and one with four. Power comes from a single engine, the 2.0L inline-four of 122 cubic inches, naturally aspirated, with double overhead camshafts and running on gasoline. Because there is no second displacement to cross-check, every torque figure, clearance and diagnostic routine in the engine chapters belongs to that one unit, and the rest of the book follows the two shells.

Engines covered

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

Body styles covered

• 2-door hatchback
• 4-door hatchback

Trims covered

• Base
• Dynamic
• Style

Known issues on the 2006 120i. The manual's coverage runs from the crankshaft outward. It gives procedures and specifications for the naturally aspirated 2.0L four, including valve train, fuel delivery, ignition, cooling and emission control, then follows the drive through the gearbox to the final drive. Chassis sections handle brakes, steering, suspension and wheel alignment with the torque values each fastener needs, and the wiring diagrams take in lighting, instrumentation, central locking and the comfort equipment that varies between Base, Dynamic and Style.