Withdrawal
Remove the engine hood. Remove engine cover. Remove the noise shield located below, to do this, disconnect the crankcase breather hose. Open the cover of the expansion tank. Remove soundproof screen. Place a pallet for service cranes -VAS 6208- under the engine. Detach lower coolant hose from radiator -arrow- and drain off coolant.
Remove lower bolt -lower arrow- of coolant pipe.
Remove the oil dipstick from the guide tube. Shine guide tube -1- for oil dipstick. Remove oil filler pipe -2- from oil tank.
Remove upper bolt -upper arrow- of coolant pipe. Turn thermostat clockwise approx. 90°and pull it out of the coolant connection. Remove seal. ring.
Installation
Install in reverse order, but the seal must be replaced. ring. Clean or deburr the seating surface of the seals. rings. Insert thermostat -3- with new seal. ring -2- into the connecting pipe -1-. For installation, the thermostat bracket must be positioned horizontally, as shown in the figure.
Moisten seal. ring -2- coolant concentrate "G12+". Turn thermostat counterclockwise -arrow- approx. 90°. Fill up the coolant.
Tightening torques:
- Connecting pipe to cylinder block: 15 Nm
- Guide tube for oil dipstick to oil filter holder: 10 Nm
Thermostat check
Warm up the removed thermostat in water.
Start of opening | End of opening | Opening progress |
approx. 87°С | approx. 102°C 1) | not less than 8 mm |
1) It's impossible to believe.
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