Overview of system components for coolant circuit

GF20.00-W-9998H

Overview of system components for coolant circuit

13.12.2018

Engine

470.9 in model 963, 964

Engine

471.9 in model 963, 964

Engine

473.9 in model 963, 964

1

Oil/coolant module

1.1

Coolant thermostat

1.2

Coolant pump

1.3

(Oil-coolant) Heat exchanger

A4

Engine management control unit (MCM)

B606

Exhaust coolant temperature sensor

B607

Intake coolant temperature sensor

Shown with code M5Z (Engine version Euro VI)

2

Exhaust gas recirculation cooler

3

Nozzle unit (for regeneration of the diesel particulate filter (DPF) - only for code M5Z (Euro VI engine version))

Y621

Exhaust gas recirculation positioner

Y627

AdBlue® heater coolant solenoid valve

4

Heating system heat exchanger

5

Coolant expansion reservoir (location, depending on vehicle equipment, either at front behind maintenance flap or at rear on cab mounting crossmember)

6

Secondary coolant-retarder (only for code B3H (Secondary coolant-retarder))

A901

Hot-water auxiliary heater (only for code D6M (Hot-water auxiliary heater, cab) or code D6N (Hot-water auxiliary heater, cab and engine)

A901 M2

Circulation pump (only for code D6M (Hot-water auxiliary heater, cab) or code D6N (Hot-water auxiliary heater, cab and engine)

B47

Coolant level switch

B87

B3HSensor for coolant pressure regulation (only for code (Secondary water retarder)

B117

B3HSensor for coolant pressure regulation (only for code (Secondary water retarder)

M20

Residual heat pump (only for code D6I (Residual heat utilization))

Y49

Heater shutoff valve

Y53

Solenoid valve for coolant pressure regulation (only for code B3H(Secondary water retarder))

Engine management (MCM) control unit, component description

A4

GF07.08-W-4110H

Auxiliary heater heater unit, component description

Only for vehicles with code D6M (Hot-water auxiliary heater, cab) or code D6N (Hot-water auxiliary heater, cab and engine)
A901

GF83.70-W-4039H

Auxiliary heater coolant circulation pump, component description

Only for vehicles with code D6M (Hot-water auxiliary heater, cab) or code D6N (Hot-water auxiliary heater, cab and engine)
A901 M2

GF83.70-W-4032H

Coolant pressure control sensor, component description

Only for vehicles with code B3H (Secondary water retarder)
B87, B117

GF20.30-W-1002H

Coolant outlet temperature sensor component description

B606

GF20.00-W-4100H

Coolant inlet temperature sensor, component description

B607

GF20.00-W-4110H

Residual heat pump, component description

Only for vehicles with code D6I(Residual heat utilization)
M20

GF83.75-W-0002H

Heater shutoff valve, component description

Y49

GF83.20-W-3126H

Coolant pressure control solenoid valve, component description

Only for vehicles with code B3H (Secondary water retarder)
Y53

GF20.30-W-1001H

Component description for exhaust gas recirculation actuator

Y621

GF14.20-W-4007H

AdBlue heater coolant solenoid valve, component description

Y627

GF14.40-W-3025H

Component description for exhaust gas recirculation cooler

GF14.20-W-2020H

Oil/coolant module, component description

GF18.20-W-4100H

Coolant pump component description

Only for vehicles with code M7T (Coolant pump, regulated)
No component description has been produced for vehicles with a rigid coolant pump.

GF20.00-W-4000H

Oil-water heat exchanger component description

GF20.00-W-4003H

Component description for the coolant thermostat

GF20.10-W-3162H

Retarder, component description

Only for vehicles with code B3H (Secondary water retarder)

GF43.30-W-3300H

Nozzle unit for DPF regeneration, component description

Only on vehicles with CODE M5Z (engine version Euro VI)

GF49.20-W-3012H

Heating system heat exchanger, component description

GF83.20-W-3123H

Table of contents for function description of coolant circuit

GF20.00-W-0999H