System Overview - Refrigerant Circuit without Rear Heater and A/C Unit
Note
Depending on vehicle equipment, there are different versions
of the A/C system for the Audi Q7. Make sure to use th
Overview - A/C Compressor and Condenser
Caution
Danger due to refrigerant coming out under pressure.
Danger of frost bite to skin and other parts of the body.
Only loosen the connection point
A/C Compressor Regulator Valve -N280-, Checking Switch-On Signal
Note
The test for an A/C compressor manufactured by "Denso" of
type "6 SEU 14" is described in the following. The test is to
Procedure
- Free up the wire to be repaired approximately 20 cm on both
sides of the repair point.
Caution
Risk of damaging the electrical wires.
Expose wrapped wiring harnesses carefully.
- If necessary, removing the wiring harness wrapping using a
knife.
- Cut out the dam
Air conditioning systems designed for refrigerant R12 are
only to be filled with refrigerant R134a if certain requirements
are fulfilled. Refer to
→ Chapter "Refrigerant Circuit, Converting R12 to R134a and
Servicing" and Repair manual: Air Conditioner with
R12 Parts 2 and 3. This repa