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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling Fan >> Cooling System 2.0L (DPAA) >> 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, VEHICLE WITHOUT HIGH-VOLTAGE SYSTEM

Engine Coolant Temperature Sensor on Radiator Outlet -G83-, REMOVING AND INSTALLING, VEHICLE WITHOUT HIGH-VOLTAGE SYSTEM

Procedure 

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

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

All except Audi Q7/Q8:

Fig 2: Engine Coolant Temperature Sensor -G83-
GWWA19-12950Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -2-.

-- Place a cloth underneath to catch leaking coolant.

-- Remove the bolt -1- and the Engine Coolant Temperature Sensor on Radiator Outlet -G83- (there are different installation positions).

Audi Q7/Q8:

Fig 3: Engine Coolant Temperature Sensor on Radiator Outlet -G83- Component Location
GWWA19-12438Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1-.

-- Place a cloth underneath to catch leaking coolant.

-- Open the clamp -2- and remove the Engine Coolant Temperature Sensor on Radiator Outlet -G83-.

Continuation for All Vehicles: 

-- To prevent coolant loss, install the new coolant temperature sensor immediately.

-- Check the coolant level. Refer to COOLANT LEVEL, CHECKING AND FILLING .

Tightening Specifications