Inspect
- 1. Always use antifreeze 19 40 650 / 9194431 (red) and ensure that the concentration is 50% water and 50% antifreeze. The antifreeze does not just protect the entire cooling system from freezing, but also protects all coolant-flushed parts from rust-corrosion/calcium deposits. It is therefore important to add antifreeze, even in tropical countries.
- 2. The water quality also plays an important role in addition to the mix ratio. Water of drinkable quality usually meets these requirements. The quality of purified sea water is inadequate!
- 3. Damage may also be caused to the engine if unauthorised anti-freeze agent is used!
- 4. If radiator, cylinder head or cylinder head gasket have been replaced the old coolant must not be re-used.
Important. Vehicles with air conditioning: switch air conditioning off and set to ECO mode with ECC
- 5. Open cooling system Warning: Cooling system is under pressure • Unscrew coolant expansion tank cover
- 6. Fill with coolant up to lower venting line (1) at coolant expansion tank
- 7. Seal off cooling system • Screw in coolant expansion tank cover
- 8. Start engine and allow to warm up • Allow engine to warm up at idling speed of up to 2500 rpm until first radiator fan setting switches on
- 9. Vent cooling system • Allow engine to run for approximately 2 minutes at 2000 to 2500 rpm
Note. The air in the cooling system is removed via the venting lines
- 10. Switch engine off and allow to cool
- 11. Check coolant level and also top up coolant to "COLD" mark
