2008 Mercedes-Benz S450 Service and Repair Manual

This factory service and repair manual for the 2008 Mercedes-Benz S450 covers the four-door sedan in its 4Matic trim, powered by a 4.7-liter V8 of 285 cubic inches. That engine breathes without a turbocharger, uses double overhead camshafts and runs on gasoline. The torque values, fluid specifications and wiring diagrams cover the V8 and the 4Matic driveline.

Engines covered

• 4.7L V8 (285 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• 4Matic

Known issues on the 2008 S450. Work on this sedan centers on the naturally aspirated 4.7L V8 and the 4Matic driveline behind it. The manual sets out procedures for the double-overhead-cam valvetrain, the gasoline fuel delivery and ignition systems and the cooling circuit, along with specifications and torque values. Wiring diagrams trace the body and chassis electrical systems of the four-door sedan, and diagnostic procedures support fault-finding on them.