AR83.70-T-5945AA | Remove/install auxiliary heater | 16.2.12 |
MODEL NMB671.015 /020 /021 /030 /042 /332 /333
T83.70-0034-11
1 Shutoff valve
2 Fuel feed line
3 Fuel return line
4 Fuel filter
5 Fuel hose
6 Auxiliary heater
7 Coolant hose
8 Air intake hose
9 Bleed valve
| Remove/install | ||
Danger! | Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by 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 containers. Wear protective gloves, protective clothing and safety glasses. | |
Danger! | Risk of explosion caused by ignition of flammable products, risk of poisoning caused by inhaling fuel vapors or swallowing fuel as well as risk of injury to skin and eyes exposed to fuel. | No fire, sparks, open flames or smoking. Wear protective clothing when handling fuel. | |
1 | Raise vehicle | ||
2 | Detach engine compartment encapsulation beneath auxiliary heater | ||
3 | Lower vehicle | ||
Danger! | Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices | No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers. | |
4 | Disconnect electric cables at battery. | ||
| Notes on battery | All models | |
5 | Open engine compartment flap | Installation: Do not close engine compartment flap. | |
6 | Release rear bumper and swivel downwards | ||
7 | Detach air intake hose (8) | Only required if fitted. | |
8 | Close coolant pipe shutoff valves | ||
9 | Close shutoff valve (1) of fuel feed line (2) | ||
10 | Detach fuel hose (5) from fuel return line (3) | Collect escaping fuel in a suitable container and seal fuel feed line (2) and fuel hose (5) with a plug. | |
11 | Detach fuel feed line (2) from fuel filter (4) | Collect escaping fuel in a suitable container and seal the fuel feed line (2) with a plug. | |
12 | Open bleed valve (9) | This is needed to prevent a vacuum from being created when the cooling water is drained. | |
13 | Detach coolant hose (7) from auxiliary heater (6) | ||
14 | Detach coolant hose from water filter connection fitting | The water filter is located upstream of the auxiliary heater coolant pump (6). | |
15 | Disconnect electrical connectors (10) from auxiliary heater (6). | Installation: Ensure that the electric wiring harnesses are routed without chafing. | |
16 | Detach base plate with auxiliary heater (6) attached from carrier mounting bracket | ||
17 | Install in the reverse order | ||
| Checking | ||
18 | Check auxiliary heater (6) coolant filter, clean if necessary | ||
| Clean coolant filter of auxiliary heater | ||
19 | Check coolant level, correct if necessary | ||
| Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration | ||
20 | Check all hose and line connections for leaks | ||
21 | Check auxiliary heater for proper function | ||
| Auxiliary heater function check | ||
22 | Close engine compartment flap |