928S

Engine

Displacement increased from 4.7 to 5.0 liter

Horsepower increased from 234 to 288

Equipped with four valves per cylinder

New hydraulic lifter

New connecting rod nuts

Modified main bearings

Camshaft drive belt with electric tension control

Oil pump with wider pump gears

Electro-radiator fan with after-run systems

Visc-fan with changed ratio

Exhaust manifold out of double-walled sheet metal pipes

New EZF ignition system with dual ignition distributors

Fuel System

New LH jetronic injection system

Transmission-Manual

Five-speed with new synchronization

Shift lever moved approximately 30 mm lower

Limited slip differential with improved lubrication

Standardized CV joint flanges
Transmission-Automatic

Elimination of drive plate adjustment

Modified torque converter

Additional selector lever indicator in tachometer

New neutral safety starting switch

Modified valve body

Chassis

New power steering pump

Rear axle with universal CV joints

Exterior and Interior

Four spoke leather steering wheel

New seat generation

Windshield antenna with amplifier

New bracket for windshield wiper motor

Electrical System

New combi instruments

Modified central electric board

Improved electrical connectors on the central electric board and combi instrument

Alternator with increased capacity-115 amp.