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
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Multifunction Steering Wheel
Overview - Multifunction Steering Wheel
Buttons are integrated in the steering wheel for easier
operation of Infotainment, telephone and the navigation system.
On vehicles with Tiptronic, rocker switches are also installed
on the left and right.
The Multifunction Steering Wheel Control M
Checking coolant
Fig. 150 Engine compartment - coolant expansion tank (diagram): 1 cover; 2
markings
Observe the safety precautions.
Checking the coolant level
Park the vehicle on a level surface.
Switch the ignition off.
Open the hood.
Check the coolant level in the coolant expansion
tank fig. 146 using th
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