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#carrepair How to replace engine coolant thermostat on a #mercedes GL450
Engine Coolant Thermostat Replacement.
Tools Required: Flat screwdriver, 1/4 inch Drive ratchet, Extension bar, Torx T-30, New thermostat, Antifreeze, Gas siphon pump, Drain Pan Genuine Mercedes thermostat, part number I used was: A 276 200 03 15 Antifreeze agent the Mb 325.6 (A 000-989-68-07-09-0109)
Step-by-Step Guide Wait for the engine to cool down Remove the cap from the coolant expansion tank Drain portion of coolant. Loosen the top hose clip, then ease off the hose. Remove the coolant sensor Remove the bolts that hold the thermostat housing in place Remove the thermostat. Put the new thermostat in the engine flange and bolt it into place. Avoid over-tightening the bolts Mix concentrated coolant with distilled water for a 50/ 50 mix. Alaska will aim for between a 60:40 Pour coolant into the reservoir up to the fill line. Use the workshop manual procedure to properly bleed all air from the cooling system. Hope you have found this helpful!
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