2020 BMW 520i Service and Repair Manual

This factory service and repair manual for the 2020 BMW 520i names Executive and Sport Line as the trims, and both sit on the same mechanical foundation: a four-door sedan body and a 2.0L inline-four of 122 cubic inches, turbocharged, double overhead cam, gasoline. What follows is therefore one description rather than two, taking the engine, driveline, chassis and body in turn with the procedures, specifications, torque values, wiring diagrams and diagnostics that each of those systems needs.

Engines covered

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

Body styles covered

• 4-door sedan

Trims covered

• Executive
• Sport Line

Known issues on the 2020 520i. A manual written at the factory level is most valuable when a job goes past the obvious: a coolant loss that has to be tracked through the circuit, an engine fastener that needs a specified sequence and value, a suspension component whose replacement changes geometry that then has to be reset. Those figures are here, along with brake and steering specifications, driveline procedures, and wiring diagrams showing the sedan's circuits as they are actually routed for diagnostic work.