2023 BMW 320i Service and Repair Manual

This factory service and repair manual for the 2023 BMW 320i describes a Base four-door sedan with a turbocharged 2.0-liter double-overhead-cam inline-four of 122 cubic inches running on gasoline. On a late-model car most work begins at a fault code rather than a noise, and the manual is built for that order of operations: diagnostic routines and test values first, then the removal, repair and reassembly procedures with the torque figures needed to put the car back together correctly.

Engines covered

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

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2023 320i. The engine sections document the turbocharged four in detail, taking in the timing drive, valve gear, lubrication, cooling, charge-air and boost control, each with the specifications used to check the work. Fuel delivery, ignition and emissions material adds pressures, resistances and fault trees. Transmission and driveline procedures follow, then brake hydraulic repair, suspension overhaul and steering alignment, and the electrical chapters give the sedan's wiring diagrams, connector views and pinouts for tracing lighting, climate, restraint and instrument circuits.