Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2007RS4 QUATTRO SEDAN (8EC) V8-4.2L (BNS)REPAIR AND DIAGNOSISSPECIFICATIONSCAPACITY SPECIFICATIONSHEATING AND AIR CONDITIONINGSYSTEM SPECIFICATIONS
2007 Audi RS4 Quattro Sedan (8EC) V8-4.2L (BNS)
System Specifications
2007 Audi RS4 Quattro Sedan (8EC) V8-4.2L (BNS)SECTION System Specifications
Capacities
Refrigerant R134a and refrigerant oil capacities. Refer to => Heating and Air Conditioning Heating and Air Conditioning
• Always fill refrigerant circuit as far as upper tolerance limit (some refrigerant remains in filler hoses).
• Refrigerant circuit may only be filled with approved refrigerant oils.
• A condenser with a smaller internal volume is installed in the Audi RS4. Therefore observe the smaller fill quantity for refrigerant R134a in this vehicle.
• For compressors manufactured by "Zexel", "Sanden ", and "Denso", various refrigerant oils are required.
• The refrigerant oil currently to be used for "Denso" compressors " G 052 300 A2".
• Use only the specified oil from a sealed container and always reseal oil container immediately after use (PAG oil absorbs moisture). Do not use oil if it is contaminated with moisture or if oil container has been left open.
• Additional information, refer to => Heating and Air Conditioning Heating and Air Conditioning
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.