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.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.