Connection Diagram - Coolant Hoses, Vehicles With Selective Catalytic Reduction (SCR)
WARNING: This page is about a different variant/trim than selected.
NOTE:
Blue = large coolant circuit.
Red = small coolant circuit.
Purple = charge air cooler coolant circuit.
Brown = heating circuit.
The arrows point in the coolant flow direction.
- Charge Air Cooling Circuit Cooler
- Charge Air Cooler
- Check Valve
- Coolant Pump
- Cylinder Head/Cylinder Block
- Reducing Agent Injector -N474-
- Coolant Expansion Tank
- Cap
- For the coolant reservoir
- Pressure Relief Valve, Checking. Refer to Pressure Relief Valve in Cap, Checking .
- Heater Support Pump -V488-
- Check Valve
- Check Valve
- Depending on vehicle equipment
- Heater Core for the Heater
- EGR Cooler
- Checking for leaks. Refer to EGR COOLER, CHECKING FOR LEAKS .
- Check Valve
- Engine Coolant Temperature Sensor -G62-
- Restrictor
- Check Valve
- Coolant Connection
- Coolant Thermostat
- Engine Oil Cooler
- Restrictor
- Check Valve
- Radiator
- Throttle Valve Control Module -J338-
- EGR Valve 1 -GX5-
- External Engine Heater
- Restrictor
- Charge Air Cooling Pump -V188-