2010 BMW 120i Service and Repair Manual

This factory service and repair manual for the 2010 BMW 120i covers a car offered in four trims, Base, Dynamic, M Sport and Style, and in two hatchback body styles with two or four doors. Its engine is the naturally aspirated 2.0L inline-four of 122 cubic inches, twin-cam and gasoline-fueled. The book is arranged so a job can be found by system rather than by model name: engine work in one place, driveline in another, chassis and body electrical in their own sections, each with its own specification tables.

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
• M Sport
• Style

Known issues on the 2010 120i. Where the manual earns its keep is in the electrical material. Both hatchback shells are drawn out circuit by circuit, with connector locations and pin assignments for the lighting, locking, instrument and restraint circuits, and the diagnostic chapters explain how the modules behind them are interrogated. Alongside that sit the mechanical sections: engine, fuel, ignition and cooling procedures for the 2.0L four, gearbox and driveline work, and brake, steering and suspension specifications with their torque values.