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Home >> Audi >> 2020 >> SQ8 Premium Plus >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Cooling Systems >> Cooling System (8-Cylinder Direct Injection 4.0L 4V TFSI Engine Ea825) >> 19 Cooling System >> Coolant Pump/Coolant Thermostat >> Engine Coolant Temperature Sensor on Radiator Outlet -G83-, REMOVING AND INSTALLING

Engine Coolant Temperature Sensor on Radiator Outlet -G83-, REMOVING AND INSTALLING

Procedure

-- To reduce the residual pressure in the cooling system, briefly open the coolant expansion tank cap -1- by releasing the retainer -arrow-.

Fig 1: Coolant Expansion Tank
GWWA19-12304Courtesy of AUDI OF AMERICA, LLC

-- Reinstall the cap until it engages.

-- Remove the front noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Remove the right wheel spoiler. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .

-- Disconnect the connector -2-.

Fig 2: Engine Coolant Temperature Sensor on Radiator Outlet -G83- Component Location
GWWA19-12854Courtesy of AUDI OF AMERICA, LLC

-- Place a cloth underneath to catch any escaping coolant.

-- Remove the bolt -1- and the Engine Coolant Temperature Sensor on Radiator Outlet -G83- (example image).

TIP:

If an O-ring remains in the cylinder block, remove the O-ring with a wire.

-- Insert the new engine coolant temperature sensor immediately so that as little coolant is lost as possible.

-- Check the coolant level. Refer to Coolant Level, Checking .

Tightening Specifications