Checking pressure values: VW Fox

🧭 Before you start

Fits: VW Fox (5Z); platform codes 5W9, 5X9, 9A2, 9A4, 5U2, 3X5, 5Y1, 5X1, 5W1, 5U1, 5X5, 5W5, 5U4, 9B1, 9B3, 3X, 5U, 9A1, 9A3, 9A5, 9A6, 5U3, 7X, 5UC, 5UB, 6A1, 6A5, 5UA

Don't miss

• If the low pressure switch has been disassembled in order to connect the Climate control recovery, recycling and refill set or EQ 7098VAS 6008, bridge the electric terminals of the respective connector.

📋 Procedure

1. Turn off the ignition and all electrical components.
2. Connect the Climate control recovery, recycling and refill set or EQ 7098VAS 6008.
3. Read the pressure gauges. [Note: The temperature of the components of the refrigerant gas loop must be equal to the ambient temperature.If some assembly components of the refrigerant gas loop should be hotter or colder, the pressure will not match the values given in the table.When pressure is expressed as absolute pressure, 0 (zero) bar corresponds to an absolute vacuum. Normal atmospheric pressure (overpressure) is equal to 1 (one) bar of absolute pressure. On most pressure gauge scales, 0 (zero) bar equals 1 (one) bar of absolute pressure (identifiable by the indication (-1) below the (0)).In vehicles equipped with a High pressure sensor G65 in which the pressure measured is indicated in the measurement values block, the value must match the values given in the table.]
4. Detect leaks in the refrigerant gas loop .
5. Check the overpressure relief valve.

6. Check activation of the radiator fan.
7. Check the refrigerant gas lines for bottle necks and small twists.
8. Check the refrigerant gas lines for external damage.
9. If no fault is found, vent the refrigerant gas loop.
10. Start the engine.
11. In the air conditioning temperature adjustment mechanism, select the lowest temperature (maximum cooling power). [Note: If the low pressure switch has been disassembled in order to connect the Climate control recovery, recycling and refill set or EQ 7098VAS 6008, bridge the electric terminals of the respective connector.]
12. Detect and eliminate the cause of the fault by checking, for example, the air conditioning fault memory .
13. Observe checking conditions .
14. Check the power supply to the Air conditioning magnetic coupler N25; if it is in order, repair the Air conditioning magnetic coupler N25. Refer to the specific repair manual for each vehicle Heating, air conditioning87Air conditioning.
15. Check the activation of the Adjustment valve for the air conditioning compressor N280.

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