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 MANUALSAUDI2012A3 (8PA) L4-2.0L TURBO (CCTA)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE PRECAUTIONS
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)
Heating and Air Conditioning: Service Precautions
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)SECTION Service Precautions
Contact Corrosion
Contact corrosion can occur if inappropriate fasteners (bolts, nuts, washers, rivets, plugs, grommets, adhesives etc.) are used.
For this reason, only connecting elements with a special surface coating, e.g. recognized by green color, are installed by manufacturer as well as non-conductive rubber, plastic parts and adhesives. Refer to Electronic Parts Catalog (ETKA).
These parts, which have been tested and are aluminum compatible, are available as replacement parts. Refer to Electronic Parts Catalog (ETKA).
Use only Original Parts.
Always install new parts if there is any doubt as to whether parts can be reused.
Accessory must be approved by Audi AG.
Damage due to contact corrosion is not covered by warranty.
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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.