| Special tools and workshop equipment required |
| t
| -VAS 5051- with -VAS 5051/1- |
| t
| -V.A.G 1551- with -V.A.G 1551/3 A- |
Note! | t
| The air conditioner compressor signal provides the engine control unit with the information that the compressor is to be switched on in 140 ms. |
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| The engine control unit can use the same wire to shut off the air conditioner compressor. |
| t
| The engine control unit will shut off the air conditioner compressor in the following cases: |
| t
| During powerful acceleration (full throttle in first gear) |
| t
| In emergency running mode (limp-home) |
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| After initiating of basic setting (Function 04) |
Note! | t
| Air conditioner system OK |
| t
| No faults recorded in fault memory of engine control unit |
| t
| Vehicle at room temperature (above +15 °C) |
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