Horn: Service and Repair

2007 Audi RS4 Quattro Sedan (8EC) V8-4.2L (BNS)SECTION Service and Repair





Horn, from MY 2007

Observe notes on contact corrosion. Refer to => [ Contact Corrosion ] Service Precautions.

Removing





Vehicles without charge air cooler/auxiliary radiator:

- On vehicles with parking heater, remove parking/auxiliary heater exhaust pipe screws - arrows - at noise insulation.

- Unfasten bolts/quick-release fasteners - 1 - and - 2 - and detach front noise insulation.





Vehicles with charge air cooler/auxiliary radiator:

- Remove front bumper cover.

All:





- Disconnect electrical connector - 3 -.

- Remove nut - 1 - and remove horn - 2 - from bracket.

Shown with bumper removed to provide a better illustration.

Installing

Install in reverse order of removal, observing the following:

Vehicles with charge air cooler/auxiliary radiator:

- Install front bumper cover.

Tightening Specifications




RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.