Audi S6 Horn Replacement Guide for 2005-2013 Models
Here is what to check before you replace a weak or silent horn on your Audi S6.
- A weak, high-pitched horn is the most common sign of failure, usually meaning one of the two horns has stopped working.
- Before buying parts, check the horn fuse and listen for a relay 'click' to rule out simpler electrical issues.
- Replacement requires removing the front bumper cover, which makes it a moderately difficult DIY job.
- Hella is a trusted aftermarket brand that often supplies original parts to Audi, making it a reliable choice.
Is Your Audi S6 Horn Not Working?
A common issue on the 2005-2013 Audi S6 is a change in the horn's sound. Often, it will suddenly sound weak, high-pitched, or like it belongs on a scooter. This almost always means one of the two horns has failed. Because the horns are mounted low in the front of the car, they are exposed to water and road debris, which can cause them to fail over time.
First, Diagnose the Problem
Before buying a new horn, it's important to make sure the horn itself is the problem. A silent horn can also be caused by a blown fuse, a bad relay, or a faulty clock spring in the steering column.
- Check the Fuse: Look in your owner's manual for the horn fuse location and check if it's blown.
- Listen for the Relay: Have a friend press the horn while you listen under the hood. If you hear a 'click', the relay is likely working, and the problem is probably the horn unit.
- Check the Clock Spring: If your airbag warning light is also on, the problem is likely a failed clock spring in the steering wheel, not the horn.
Choosing the Right Aftermarket Horn
When replacing a failed horn on your S6, you have options. While OEM parts are available, a quality aftermarket part can offer the same performance, often for less money.
Brand Quality: OEM vs. Aftermarket
Hella: Hella is a well-known German brand that is often the original equipment manufacturer (OEM) for Audi parts. This means a Hella aftermarket horn can be nearly identical to the part you would get from an Audi dealer, just without the Audi logo and associated price markup. Owners on forums frequently use Hella as a reliable replacement for the original horns. They provide a strong, clear tone that meets or exceeds the factory sound.
Known Issue: Water Intrusion
Audi has a Technical Service Bulletin (TSB) that addresses horns sounding distorted due to water getting inside. The TSB suggests trying to drain the water from the horn first. However, if the horn's internal parts are already corroded, replacement is the only solution. This confirms that water damage is a common cause of failure for these parts.
Audi S6 Horn Replacement Cost
The cost to replace a horn can vary depending on the parts you choose and whether you do the work yourself.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Hella) | $73.17 |
| New OEM | $110 - $160 |
| Shop Labor | $150 - $350 |
Cost estimates are based on national averages and may vary. Labor costs are based on the need to remove the front bumper cover for access.
Frequently Asked Questions (FAQ)
Why does my horn sound so weak?
Your S6 uses a high-tone and a low-tone horn. A weak or high-pitched sound almost always means the low-tone horn has failed, leaving only the high-tone horn working. This is the most common failure symptom.
Can I replace just one horn?
Yes, you can replace only the failed horn. However, since both horns are the same age and have been exposed to the same conditions, many owners choose to replace both at the same time to prevent having to do the job again in the near future.
Is replacing the horn a DIY job?
It can be, but it requires some mechanical skill. Accessing the horns on the S6 requires removing the front bumper cover. While not overly complex, this can be a time-consuming process for someone without experience. Once the bumper is off, swapping the horn itself is very simple.
Do I need a special tool to replace the horn?
You will need basic hand tools, such as a socket set and screwdrivers, to remove the front bumper cover. No special tools are required for the horn itself. The horn is typically held on with a simple bolt and has a single electrical connector.
Technical Specifications
OEM Part Numbers: 4H0951221 4H0951223
System Type: Dual-tone (High and Low frequency). Voltage: 12V. Location: Front of vehicle, behind bumper cover.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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