Service Information: Replace radiator and heater core

Type si · topic 20.00 · version 0100 · 2018-02-20

Applies to: Model 963, 964 with code B3H (Water-type secondary retarder)

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.00 General — Series 963 · Series 964

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.31 Engine radiator — Series 963 · Series 964

EinPAS 39 Heating/ventilation/cooling › 39.15 Climate control › 39.15.32 Housing/heat exchanger/evaporator/filter — Series 963 · Series 964

EinPAS 45 Data/information › 45.20 Information/measures › 45.20.20 Service information — Series 963 · Series 964

SI20.00-W-0011A

Service Information: Replace radiator and heater core

31.01.2018

Model	963, 964
	with code B3H (Water-type secondary retarder)

When replacing the radiator or the heater core on vehicles with code B3H (Secondary water retarder), the coolant must always be replaced. Using the old coolant again may mean that the coolant does not remain stable up to the time of the next coolant change interval, and - in the worst case - the engine cooling system may then suffer sludging. Replacing the coolant helps to prevent this.