TT Roadster L4-2.0L Turbo (BWA) (2009)
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.
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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. Refer to 2.0 Liter 4-Cyl. 4V Turbo Fuel Injection & Ignition, Engine Code(s): BWA. Repair Group 24.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) (J623). Refer to => [ replacing ] See: Computers and Control Systems/Engine Control