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Home >> Audi >> 2007 >> A3 Quattro >> Repair and Diagnosis >> Engine Performance >> System >> 3.2L - Generic Scan Tool - Engine Code(S): Bub >> St Generic Scan Tool >> Description And Operation >> MOTRONIC Fuel Injection System >> Engine Coolant Temperature Sensor, Checking >> Testing if display approx. 140.0° C:
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Testing if display approx. 140.0° C:

-- Disconnect the Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector -1-.

Fig 1: Identifying Engine Coolant Temperature (ECT) Sensor (On Radiator) Electrical Harness Connector
GWWA10-1568Courtesy of AUDI OF AMERICA, LLC

If indication jumps to approx. -40.0° C:

-- End diagnosis and switch ignition off.

-- Replace theEngine Coolant Temperature (ECT) Sensor - G62-.

If indication remains at approx. 140.0° C:

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