2012 BMW 120i Service and Repair Manual

This factory service and repair manual for the 2012 BMW 120i has three bodies to account for rather than two: the two-door and four-door hatchbacks, and a two-door coupe. All of them use the naturally aspirated 2.0L inline-four of 122 cubic inches, DOHC and gasoline-fed, and all are sold as Base, Dynamic, M Sport or Style. The extra shell mainly affects body repair, glass, door hardware and rear wiring, and the manual keeps those sections apart so a coupe job is never read off a hatchback drawing.

Engines covered

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

Body styles covered

• 2-door hatchback
• 4-door hatchback
• 2-door coupe

Trims covered

• Base
• Dynamic
• M Sport
• Style

Known issues on the 2012 120i. With three shells in one book, the body and electrical material carries the most weight: panel and structural repair data, door and glass procedures, and wiring diagrams drawn per body with connector and ground locations. The mechanical side is common. The 2.0L four has engine, fuel, ignition, cooling and emission procedures with specifications and torque values, the driveline is documented from the clutch back to the rear axle, and brake, steering and suspension work comes with setting data and diagnostics.