2012 BMW 325i Service and Repair Manual

This factory service and repair manual for the 2012 BMW 325i has three engines to document — a turbocharged 2.0-liter inline-four of 122 cubic inches, a naturally aspirated 2.5-liter inline-six and a turbocharged 3.0-liter inline-six, all gasoline — across a sedan, a coupe and a convertible sold in nine trims. That is the broadest specification in the model's run, and the manual handles it by separating what changes with the engine, what changes with the body, and what only changes with equipment level.

Engines covered

• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline
• 2.5L inline-six — DOHC, naturally aspirated, gasoline
• 3.0L inline-six — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan
• 2-door coupe
• 2-door convertible

Trims covered

• Base
• Business
• Edition Exclusive
• Exclusive
• M Sport
• Navi
• Premium
• Progressive
• Sport

Known issues on the 2012 325i. NHTSA holds one owner complaint for this model year, and it concerns the seats. Seat removal, frame and adjuster repair, and the wiring that runs beneath them are set out with the torque values that go with the mounting hardware. Around that, the manual covers each of the three engines with its own specifications and diagnostics, the turbocharging hardware on two of them, brake, suspension and steering repair, and the convertible and coupe body sections that differ from the sedan's.