Audi Q3: A/C System Repair Information
Audi Q3 (8U) 2011-2018 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant R134a Servicing / Refrigerant Circuit / A/C System Repair Information
- 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 repair manual is only available in hard copy.
- The refrigerant oils specifically developed for R134a and R12 refrigerant circuits are never to be mixed.
- Service stations which come in contact with the refrigerant are only to be used for the intended refrigerant.
- Components of R134a refrigerant circuits can be identified by their markings, green labels or design (such as different threads) to prevent interchanging with components designed for refrigerant R12.
- A label indicating the refrigerant used is provided in the engine compartment on the lock carrier or in the plenum chamber.
- Different refrigerants are never to be mixed.
Note
When working on the refrigerant circuit, always heed the information given in the sections on "Safety measures". Refer to → Chapter "A/C System and Refrigerant R134a Safety Precautions" and "Basic rules for working on refrigerant circuit" → Chapter "Refrigerant Circuit, General Precautions".
Refrigerant Circuit, Converting R12 to R134a
CFC refrigerants are no longer used in the automotive industry.
Converting refrigerant circuits from R12 refrigerant to R134a refrigerant and servicing converted circuits
Refer to Repair Manual: Air Conditioner with Refrigerant R12 Parts 2 and 3 (This repair manual is only available in printed form).
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Using Service Station
General Information
Vehicles with a high-voltage system (hybrid vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by
Refrigerant Circuit, Discharging with Service Station
Work procedure may vary depending on the type of tools
selected (the tool-specific operating instructions should
therefore be followed).
The refrigerant circuit is to be discharged if parts o
Refrigerant Circuit, Charging with Service Station
Note
The entire refrigerant charge can be added to either the
high or low pressure side. Refer to
→ Chapter "Refrigerant R134a Capacities, Refrigerant Oil and
Approved Refrigera
SEE MORE:
Rear Brake Pads, Removing and Installing
Brake Pads, Removing and Installing, Brakes 1KU
If old brake pads are being replaced with new ones, then it
is necessary to check the brake rotor thickness for wear. Pay
attention to the wear specifications for the brake rotor, refer
to
→ Chapter "Brakes Technical Data".
Special too
Rear Window Washer System
Overview - Rear Window Washer System
1 - Windshield Washer Fluid Reservoir
The combined washer fluid reservoir for the front and rear washer
systems is located in the left wheel housing.
Removing and installing. Refer to
→ Chapter "Washer Fluid Reservoir, Removing and I
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