Engine Cooling

928 utilizes an aluminum radiator and a mechanically driven visco-fan. Water pump is driven by the back side of the toothed timing belt. An expansion tank with filler opening and water level sending unit is mounted at the right rear of the engine compartment. Water level is indicated on the instrument cluster.

Cooling System Capacity  - 17 quarts.

Thermostat  - Begins to open at 180°F (83°C).

Fig 1: Porsche 928 Engine Lubrication System

Courtesy of PORSCHE CARS NORTH AMERICA, INC.