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 MANUALSAUDI1996A4 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 81 (AIR CONDITIONING)REFRIGERANT CIRCUIT, SERVICINGNOTES
1996 Audi A4 Base, Standard
Refrigerant circuit, servicing: Notes
1996 Audi A4 Base, StandardSECTION Notes
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- All work or components marked with a 1) can be carried out or replaced without discharging the refrigerant circuit (work that does not pertain to refrigerant circuit).
- All refrigerant component circuits not marked with 1) as well as all coolant hoses and lines can only be serviced or replaced after discharging the refrigerant circuit.
- When installing refrigerant lines/hoses and pertaining bracket, make sure there is a sufficient gap between belt, bracket and belt pulley
- Up to model year 2001 only compressors with A/C Clutch -N25- are installed. From model year 2002 depending on engine type compressors with A/C Clutch -N25- or with A/C Compressor Regulator Valve -N280- are installed. See COMPRESSOR, WITH A/C CLUTCH -N25- and COMPRESSOR, WITH A/C COMPRESSOR REGULATOR VALVE -N280- .
- Servicing refrigerant system, see A/C REFRIGERANT SYSTEM, SERVICING .
RENDER: 1.0x
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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.