2004 BMW 525i Service and Repair Manual

This factory service and repair manual for the 2004 BMW 525i narrows to a single configuration: the four-door sedan, in Base trim, with the 2.5L inline-six of 152 cubic inches under the hood, double overhead camshafts, no forced induction, gasoline. One engine and one body mean the specifications a technician reads apply to the car in front of him without a variant table to sort through first, and the same is true of the torque values and the wiring.

Engines covered

• 2.5L inline-six (152 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 2004 525i. With one drivetrain to document, the engine section can go deep: procedures, clearances and torque values for the timing drive, the fuel and ignition management, the cooling system and the emissions equipment on the 2.5L six. Past the engine, the manual specifies the transmission, driveshaft and rear axle, the suspension and steering geometry and the hydraulic brakes, and it gives wiring diagrams and fault diagnostics for the sedan's charging, starting, lighting and interior circuits.