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Home >> Audi >> 2021 >> TT Quattro RS >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System (Servicing - 5-Cylinder 2.5L TFSI Engine (Ea 855 EVO)) [Coupe] >> 19 Cooling System >> Coolant Pump/Coolant Thermostat >> Coolant Thermostat, Removing And Installing >> Installing

Coolant Thermostat, Removing And Installing: Installing

Install in reverse order of removal and note the following:

-- Clean and smooth the O-ring sealing surface.

-- Coat the new O-ring with coolant.

-- Fill with coolant. Refer to COOLANT, DRAINING AND FILLING .