volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Expansion Valve and Receiver (With Internally Regulated Compressor), Checking|Page 8619 > < Expansion Valve and Receiver (With Internally Regulated Compressor), Checking|Page 8617
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NOTE:

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For the malfunction "high pressure normal, low pressure too low", note the following: If malfunctioning, evaporator may ice-up or cooling output
is not reached.

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With this malfunction, evaporator may ice up although quantity of refrigerant in circuit is 0K.

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Check measured values of Evaporator Vent Temperature Sensor G263 and activation of A/C Compressor Regulator Valve N280. If measured
value of High Pressure Sensor G65 is not OK, evaporator may ice up or cooling output is not attained.

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If the problem is with the A/C Compressor Regulator Valve N280 (regulating valve is not actuated but compressor operates nevertheless), 
refrigerant circuit does not have to be flushed. It is sufficient in this case to replace the compressor (adjust quantity of refrigerant oil in
compressor).

Expansion Valve and Receiver (With Internally Regulated Compressor), Checking|Page 8619 > < Expansion Valve and Receiver (With Internally Regulated Compressor), Checking|Page 8617