1999 Mercedes-Benz S320 Service and Repair Manual

This factory service and repair manual for the 1999 Mercedes-Benz S320 starts from two facts: the sedan has four doors, and it has a 3.2L inline-six under the hood. That six is gasoline-fueled, naturally aspirated and uses double overhead camshafts. LWB and SWB are the two trims listed. The manual takes in engine, transmission, braking, steering, suspension, climate control and electrical work with specifications for 1999.

Engines covered

• 3.2L inline-six — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• LWB
• SWB

Known issues on the 1999 S320. The lone complaint lodged against the 1999 S320 concerns its air bags. NHTSA logged nine complaints against the wider 1999 S-Class line, with air bags named three times and seat belts and suspension twice each. Restraint systems therefore deserve attention, and the manual covers them with air bag and seat belt component procedures, wiring diagrams for the restraint circuits and diagnostics for warning lights, plus suspension specifications and torque values.