Sprinter 2500 V6-3.0L DSL Turbo VIN 45 (2007)
Auxiliary Heater Element: Service and Repair
Heater Unit-Booster
Removal
REMOVAL
WARNING: Review safety precautions and warnings before performing this procedure. Failure to follow the warnings and cautions may
result in serious or fatal injury.
1. Disconnect and isolate the negative battery cable.
2. Drain the engine cooling system.
3. Raise and support the vehicle.
4. Disconnect the three wire harness connectors (1) from the heater booster unit (6) located on the left side of the vehicle underbody.
5. Loosen the hose clamps (4) and using a twisting motion, remove both heater hoses (5) from the heater booster unit.
6. Disconnect the fuel line (3) from the heater booster unit.
7. Remove nuts (2) that secure the heater booster unit to the vehicle underbody and remove the booster unit.
Installation
INSTALLATION
1. Position the heater booster unit (6) to the vehicle underbody and install the retaining nuts (2). Tighten the nuts to 6 Nm (53 in. lbs.).
2. Connect the fuel line (3) to the heater booster unit.
3. Install both heater hoses (5) onto the heater booster unit using a twisting motion. Tighten the hose clamps (4) securely.
4. Connect the three wire harness connectors (1) to the heater booster unit.
5. Lower the vehicle.
6. Reconnect the negative battery cable.
7. Refill the engine cooling system.
