Attention: If the liquid is drained during the repair process, it must be stored for reuse, as it contains anti-freeze and anti-corrosion additives.
Drain
Disconnect ground wire from battery.
Set both switches for the heating system in the cab to maximum heating power. For vehicles with automatic climate control, press the button "DEF".
Rotate the radiator cap to the left until it stops and release excess pressure from the cooling system. Then turn the cover further and remove it completely.
Attention: On a hot engine, before opening the cover, put a thick rag on it in order to avoid burns from hot liquid or steam. Remove the cover only when the coolant temperature is less than 90°C.
Place a clean drain pan under the radiator and remove the drain bolt (1) on the radiator.
Loosen the drain bolt on the engine block. It is located on the right side approximately in the middle below the exhaust manifold.
Drain the coolant completely.
Screw the drain bolt into the engine block with a new gasket and tighten to 30 Nm.
Tighten drain bolt on radiator to 1.5 to 2 Nm. To do this, insert a coin into the slot of the bolt and tighten it by hand.
Filling
Pour coolant through the radiator filler neck up to the mark "cold liquid" (WITH). (A) - marking of filling. (IN) - "warm liquid". Leave the radiator neck open first.
Connect ground wire to battery.
Warm up the engine until the thermostat opens (coolant temperature 90-100°С). At the same time give gas in jerks.
Attention: At a coolant temperature of 60°-70°C, close the radiator filler neck.
Check the cooling system for leaks in the hoses, drain bolts and coolant pump.