volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Coolant Temperature Sensor on Radiator, Checking|Page 2655 > < Engine Coolant Temperature Sensor on Radiator, Checking|Page 2653
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Continue test according to the following table:

*

If a temperature is indicated which differs greatly from  ambient temperature of sensor, check sensor wires for contact resistance. 

If specified value is obtained:

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Start engine and let run at idle. The temperature must

climb uniformly

‹› The temperature climbs in increments of 1.0° C.

‹› If the engine shows problems in certain temperature ranges and if the  temperature does not climb uniformly, the temperature signal is intermittent 

and the sensor should be replaced.

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Switch ignition off.

Continuation of test if indication is approx. -40°  C:

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Disconnect 2-pin connector from Engine Coolant Temperature  (ECT) Sensor (G62) (arrow).

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Bridge terminals 1 + 2 of connector using the respective adapter  cables and observe the indication on display.

Engine Coolant Temperature Sensor on Radiator, Checking|Page 2655 > < Engine Coolant Temperature Sensor on Radiator, Checking|Page 2653