1 | Cap |
W20.00-1088-11
2 | Engine radiator |
3 | Coolant drain plug |
W20.00-1089-11
Danger ! | 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. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
Danger ! | 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. | |
| Notes on coolant | ||
Drain off | |||
1 | Open maintenance flap | ||
2 | Unscrew cap (1) | ||
3 | Set heater to the max. heat output and switch on ignition | ||
4 | Open coolant drain plug (3) and drain of coolant at engine radiator (2) | The coolant drain plug (3) does not have to be removed completely to drain it. Catch coolant using a coolant catching device. The coolant will be cleaned through a filter during filling. | |
Pour in | |||
5 | Tighten coolant drain plug (3) on engine radiator (2) | Drain screw to engine radiator | |
6 | Check coolant for soiling | In the case of strong fouling, the coolant must generally be replaced. | |
Coolant | |||
7 | Check coolant with antifreeze tester | In the case of low antifreeze protection, replace the anti-frost protection part or replace the coolant. | |
Coolant | |||
8 | Add coolant using the coolant catching device up to the lower edge of the filler neck | ||
9 | Start engine and bleed cooling system | Run engine for about 5 minutes at varying rotational speeds. Top up coolant constantly to the bottom edge of the filler neck. | |
10 | Screw down cap (1) | ||
11 | Turn off engine | ||
12 | Check cooling system for leaktightness | Visual inspection | |
13 | Close maintenance flap |
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