Shown with engine 780.701 |
1 | Expansion reservoir |
2 | Cap |
3 | Vent line |
4 | Electrical connector |
5 | Coolant hose line |
6 | Bracket |
S20.30-A000-76
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Warning | Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. 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 containers. | |
Topical note | General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system | ||
Topical note | Notes on coolant | ||
| Remove/install | ||
1 | Remove cap (2) of expansion reservoir (1). | Turn cap (2) of the expansion reservoir (1) counterclockwise only up to the safety catch and relieve overpressure. Then unscrew cap (2). | |
2 | Clamp off coolant hose line (5). | Clamp | |
3 | Extract coolant from expansion reservoir (1). | ||
Notes on coolant level for electric motor cooling system | |||
Electric drive cooling system | |||
Hand pump | |||
4 | Release and disconnect electrical connector (4). | ||
5 | Remove bleed line (3) from expansion reservoir (1). | ||
6 | Seal openings with suitable stop plug. | Record plug | |
7 | Remove coolant hose line (5) from expansion reservoir (1). | ||
Collect escaping coolant. | |||
Commercially available devices/tools | |||
8 | Seal openings using suitable protective covers. | Set of protective caps | |
9 | Turn expansion reservoir (1) in direction of arrow (arrow A) and remove upwards from bracket (6). | WIS Service Media | |
10 | Install in the reverse order. | ||
| Check | ||
11 | Check cooling system for electric motor in area of expansion reservoir (1) for leaks. |
Cooling system |
Number | Designation | Engine 780.701/702 in model 447 | |||
BF08.50-N-1001-01F | Electric drive cooling system | Cooling system of high-voltage battery and vehicle interior | Filling capacity | Liter | 10 |
Cooling system of electric motor | Filling capacity | Liter | 5 | ||
For both cooling systems, entire filling capacity, in the workshop | Filling capacity | Liter | 15 | ||
Antifreeze/water | Down to -37 °C | % | 50/50 | ||
Coolant specifications | |||||
Sheet | |||||
000 589 54 37 00
Clamp
210 589 00 71 00
Hand pump
001 589 00 91 00
Set of protective caps
129 589 00 91 00
Record plug