T20.00-0032-01
1 Expansion reservoir
2 Cap
3 Coolant drain plug
T20.00-0033-01
Modification notes
10.8.04 | Total filling capacity changed from 18 l to 26 l. | with engine 904.952/953 | |
Antifreeze filling capacity up to -37 °C changed from 9 l to 13 l. | with engine 904.952/953 | ||
Antifreeze filling capacity up to -45 °C changed from 9.9 l to 14.3 l. | with engine 904.952/953 |
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. | |
| Notes on coolant | ||
1 | Set the slide valve of the heater control to maximum | ||
2 | Unscrew cap (2). | ||
3 | Open the coolant drain plug (3) and collect the coolant in a vessel | The old coolant must be drained completely. While disposing of the fuel, pay attention to legal provisions and local waste water regulations! | |
4 | Screw on the coolant drain plug tightly in the cooler | | |
5 | Fill the coolant till the fold (arrow) in the expansion reservoir (2) | Use only the specified composition of coolant. | |
| |||
Antifreeze tester | |||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. | |
6 | Start engine and bleed cooling and heating system | Run engine for about 1 minute at varying revs. Fill up the fuel again. The cooling system is filled correctly if the coolant is at the fold (arrow) of the expansion reservoir (1). | |
7 | Switch off the engine | ||
8 | Screw on cap (2). |
Radiator, coolant hoses
Number | Designation | Engine | |
BA20.20-N-1001-01K | Drain screw to engine radiator | Nm | 25 |
Engine cooling system
Referenced documents
- ah2000n208001a Notes on coolant
- 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.