AR83.70-P-5700Q | Remove/install coolant circulation pump | 13.6.02 |
MODEL 209.3 with CODE (228) Stationary heater
or retrofitted stationary heater
P83.70-4176-09
1 Coolant hose
2 Fuel hose
3 Cover
7 Coolant hose
A6 STH heater unit
A6m1 Circulation pump
4 Electrical connector
5 Screw
6 Bracket
Modification notes
| Removal/installation | ||
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. | |
1 | Relieve pressure in coolant circuit | To do this, rotate the coolant expansion tank cap to the first detent. | |
2 | Remove the front and middle fender liners in the front fender | ||
3 | Disconnect the coolant hose (1) | | |
4 | Detach coolant hose (1) | Collect any escaping coolant in a clean container and pour it back into the coolant expansion tank after installation is complete. | |
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. | |
5 | Plug off fuel hose (2) | Seal off fuel hose (2) to prevent fuel from escaping. | |
| |||
6 | Unclip covering (3) | ||
7 | Disconnect electrical connector (4) | ||
8 | Unscrew bolt (5). | ||
9 | Remove holder (6) | ||
10 | Detach coolant hose (7) | Collect any escaping coolant in a clean container and pour it back into the coolant expansion tank after installation is complete. | |
11 | Remove circulation pump (A6m1) | ||
12 | Install in the reverse order | ||
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. | |
13 | Use STAR DIAGNOSIS for initial startup of stationary heater (STH) | If the STH heater unit switches off automatically before reaching its operating temperature and cannot be restarted again, a fault interlock is present. To clear fault interlock, use STAR DIAGNOSIS. | |
| Connect STAR DIAGNOSIS and read out fault memory | ||
Diagnosis system STAR DIAGNOSIS | |||
14 | Inspect cooling system for leaks |
129 589 00 91 00
Set of stop plugs
Clamping device
000 589 40 37 00
Commercially available tools
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