Evacuating And Charging Valve, Removing And Installing, Low And High Pressure Side: Removing
Vehicles with high-voltage system (Audi Q7 e-tron)
-- Switch off (deactivate) the "parking air conditioner". Refer to Owner's Manual.
-- Initiate the A/C system basic setting through the Thermal Management Control Module -J1024- and open the power-activated valves through the stored routine "Extract, evacuate and fill the refrigerant circuit" using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
Continuation for All Vehicles
-- Switch off the ignition.
This image shows the service connections on a vehicle without a high-voltage system (installed in plenum chamber). On vehicles with a high-voltage system (Audi Q7 e-tron), these connections are installed in the area behind the left headlamp in the engine compartment.
-- Remove the plenum chamber cover if necessary (depending on the component location). Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .
-- Remove the closure caps (with seal) -A- or -B-.
-- Discharge the refrigerant circuit. Refer to Refrigerant Circuit or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .
Danger or frostbite due to refrigerant coming out under pressure.
Frostbite on the skin and other parts of the body is possible.
- Wear safety gloves.
- Wear protective eyewear.
- Evacuate or drain refrigerant and open the refrigerant circuit immediately.
- If more than 10 minutes elapse after extracting or draining the refrigerant and the refrigerant circuit was not opened, extract or drain the refrigerant again. Pressure develops in the refrigerant circuit due to evaporation.
-- Remove the valve -C- with a suitable Socket from the Refrigerant Sockets :T10364 .