Having problems with your Mercedes-Benz 300-Class ?

How do i install a thermostat on a 1985 mecedes

Posted / edited by AnonymousUser on : 17-09-2018

Answers :

Hi, to install a thermostat in your 1985 Benz, follow the instruction below....\015\012\015\012
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  • Drain the radiator. Place a drainage container under the drainage bolt that is located on the bottom of the radiator. Open the drainage bolt with a pair of pliers. Close the drainage bolt after the fluid has drained.
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  • Locate the thermostat housing by tracing the upper radiator hose to the water pump. The hose connects to the thermostat housing that is located on the water pump.
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  • Loosen the band clamp that holds the radiator hose to the thermostat housing with a Phillips screwdriver. With the clamp loosened, pull the hose off the thermostat housing.
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  • Remove the bolt that holds the thermostat housing onto the water pump. Pull the thermostat housing off the water pump and discard the old O-ring.
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  • Pull the old thermostat out of the water pump and place the new one into place. The ball valve on the thermostat must be in the top position.
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  • Place a new O-ring around the thermostat and place the thermostat back onto the water pump. Bolt it into place.
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  • Attach the upper radiator hose to the thermostat housing and secure the clamp with a screwdriver.
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  • Place a funnel into the radiator-filler cap and drain the radiator fluid back into the radiator.
Repair Help & Product Troubleshooting for Mercedes-Benz 300-Class

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