2003 BMW Z8 Service and Repair Manual

This factory service and repair manual for the 2003 BMW Z8 carries an unusually long specification list for a two-door convertible: three engines, a 4.8-liter V8, a 4.9-liter V8 of 302 cubic inches and a 5.0-liter V8, all naturally aspirated, all with double overhead camshafts on gasoline, and two trims, Base and Alpina. Displacement changes clearances, capacities and torque figures, so the engine sections are read by specification rather than straight through from front to back.

Engines covered

• 4.8L V8 — DOHC, naturally aspirated, gasoline
• 4.9L V8 (302 cu in) — DOHC, naturally aspirated, gasoline
• 5.0L V8 — DOHC, naturally aspirated, gasoline

Body styles covered

• 2-door convertible

Trims covered

• Base
• Alpina

Known issues on the 2003 Z8. There is plenty here to keep straight: each of the three V8s has its own clearances, capacities and torque values, and the manual separates them rather than averaging them. Away from the engine, the transmission and rear axle have their own overhaul sequences, the brake and suspension sections give service limits and alignment data, and the wiring diagrams cover both trims.