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Audi Workshop Service and Repair Manuals

Coolant Temperature Sensor/Switch (For Computer)|Testing and Inspection|Page 552 > < Coolant Temperature Sensor/Switch (For Computer)|Testing and Inspection|Page 550
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If the value jumps to approx. 140.0° C

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End diagnosis and switch the ignition off.

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Replace the Engine Coolant Temperature (ECT) Sensor (G62).

If indication remains at approx. -40.0° C:

°Testing if display approx. 140.0 C:

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

If indication jumps to approx. -40.0° C:

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End diagnosis and switch ignition off.

-

Replace the Engine Coolant Temperature (ECT) Sensor (G62). 

If indication remains at approx. 140.0° C:

Checking wiring

If the manufacturers test box is being used, perform the following step.

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Install the test box.

If the manufacturers test box is not being used, perform the following step.

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Remove the Motronic Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Replacing ] See: Powertrain

Coolant Temperature Sensor/Switch (For Computer)|Testing and Inspection|Page 552 > < Coolant Temperature Sensor/Switch (For Computer)|Testing and Inspection|Page 550