AR83.70-D-5700A | Remove/install coolant circulation pump | 14.5.97 |
MODELS 901.0 /3 /4, 902.0 /3 /4, 903.0 /3 /4, 904.0 /3 /4 with CODE (H12) Hot water auxiliary heater
MODELS 901.6, 902.6, 903.6, 904.6 with CODE (HZ5) Warm air auxiliary heater 10 kW with timer
coolant circulation pump bracket, heater
D83.70-1277-06
1 Coolant hose
2 Coolant hose
3 Circulation pump
4 Plug connection
5 Nut
| Remove/Install | ||
Danger! | Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit | Do not operate stationary heater, auxiliary heater or engine with heater booster in closed areas or when refueling. Allow heater unit to cool down after operation and wear protective gloves. | |
1.1 | Remove front bumper | Model 901.0/3/4, 902.0/3/4, 903.0/3/4, 904.0/3/4 | |
1.2 | Remove front grille | Models 901.6, 902.6, 903.6, 904.6 up to model year 2003 | |
Models 901.6, 902.6, 903.6, 904.6 as of model year 2003 | |||
2.1 | Remove left headlamp unit | Model 901.6, 902.6, 903.6, 904.6 | |
3 | Pinch off coolant hoses (1, 2) | | |
4 | Detach electrical connector (4) from circulation pump (3) | ||
Danger! | Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage bottles. Wear protective gloves, protective clothing and eye protection. | |
5 | Detach coolant hoses (1, 2) from circulation pump connecting pipes | Collect escaping coolant in a clean vessel. Installation: After installing the air circulation pump, pour any escaped coolant back into the coolant and heating circuit. | |
6 | Unscrew nuts (5). | ||
7 | Remove circulation pump (3) from heater bracket | ||
8 | Install in the reverse order | ||
Danger! | Risk of accident from vehicle starting off by itself when engine running. Risk of injury caused by contusions and burns when working in engine during starting procedure | Secure vehicle to prevent it from moving off by itself. | |
9 | Start engine and bleed cooling and heating system. | Allow engine to warm up for approx. | |
10 | Switch off engine | ||
11 | Check coolant, top up if necessary | ||
12 | Check coolant hoses connected to circulation pump for leaks | ||
13 | Check function of auxiliary heater |
000 589 54 37 00
Clamping device
Referenced documents
- ar8210d4730a Remove/install headlamp unit
- ar8800d2115b Remove/install front grille
- ar8800d2115c Remove/install front grille
- ar8820d2000b Removing and installing front bumper
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
- as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.
- as8370z000201a Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit