2003 BMW 325xi Service and Repair Manual

This factory service and repair manual for the 2003 BMW 325xi is written for one engine in two useful shapes: the naturally aspirated 2.5L DOHC inline-six of 152 cubic inches, in a four-door sedan and a four-door wagon, both Base trim and both driving all four wheels. Everything from the engine back to the rear axle is shared between them; the wagon's differences lie in the rear structure, the tailgate mechanism and the wiring serving the load area, and those sit in the body sections.

Engines covered

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

Body styles covered

• 4-door sedan
• 4-door wagon

Trims covered

• Base

Known issues on the 2003 325xi. Because the driveline is all-wheel drive, the manual devotes separate sections to the transfer case and front axle, with fluid grades, capacities and torque values for both. The engine chapters give the six-cylinder's timing procedure, clearances and cooling system service. Suspension, steering and alignment follow, then brake hydraulics with the anti-lock system, restraints, climate control and the body electrical of the sedan and the wagon. Every one of them is supported by wiring diagrams and diagnostic routines that work from symptom back to cause.