Guide to the 2010-2016 BMW 535i Horn: Symptoms and Replacement
Your F10 BMW 535i horn is a critical safety device; here's what to do when it fails.
- Horn failure is a common issue, often caused by water damage leading to a short circuit.
- Always check fuses #8 and #62 in the glove box before ordering parts.
- Replacement requires removing the front bumper cover, making it a moderately difficult DIY job.
- It is highly recommended to replace both high and low-tone horns at the same time to ensure correct sound and avoid future repairs.
Is Your BMW 535i Horn Not Working?
Horn failure is a known issue on the F10 chassis used by the 2010-2016 BMW 535i. Often, the problem starts with one of the two horns failing, resulting in a weak or high-pitched "squeak" instead of the full-throated sound you're used to. Eventually, the second horn may fail, leaving you with no sound at all. Before assuming the horn itself is bad, it's wise to check the fuses first.
Known Issue: Water Damage and Blown Fuses
A BMW Technical Service Bulletin (TSB) indicates that a common cause for horn failure on these models is water getting inside the horn assembly. This moisture can cause an internal short circuit, which damages the horn and can blow the fuse. If your horn suddenly stops working, check fuse #62 (15A) and fuse #8 🎬 Watch: Troubleshooting common causes for BMW horn failure in the glove box fuse panel. If the fuse is blown, it is highly likely that at least one of the horns has failed and will need to be replaced.
Symptoms of a Failing Horn
- No sound: The most obvious symptom. Pressing the horn button does nothing. This could be a blown fuse, a wiring issue, or failure of both horns.
- Weak or altered sound: If your horn sounds higher-pitched or quieter than normal, it means one of the two horns (usually the low-pitch one) has failed.
- Intermittent operation: The horn works sometimes but not others, which can point to a loose connection or a failing horn assembly.
- Blown fuse: A shorted horn will repeatedly blow its fuse. The main horn fuse is a 15-amp fuse located at position 62 in the glove compartment fuse box.
Choosing the Right Aftermarket Horn
When replacing a failed horn on your 535i, you have the choice between original BMW parts and aftermarket alternatives.
- OEM (Original Equipment Manufacturer): These are the same parts your car was built with. They guarantee a perfect fit, the correct dual-tone sound, and known quality. However, they are the most expensive option.
- Aftermarket (Vemo): Aftermarket brands like Vemo offer a direct-fit replacement at a lower cost. While Vemo provides a budget-friendly solution, the quality and sound may not perfectly match the original. Forum discussions on the brand are mixed; some users find them acceptable for simple parts, while others prefer OEM for parts that require significant labor to install.
Pro Tip: The horn replacement process is labor-intensive. To avoid doing the job twice, it is strongly recommended to replace both the high-tone and low-tone horns at the same time. This ensures a balanced, correct sound and prevents you from having to repeat the repair when the second original horn eventually fails.
🎬 Watch: Full walkthrough of the high and low horn replacement| Part Type | Estimated Cost (Per Horn) |
|---|---|
| New OEM | $90 - $120 |
| New Aftermarket (Vemo) | $69.86 |
| Used OEM | $25 - $50 |
| Shop Labor | $250 - $400 |
Frequently Asked Questions (FAQ)
Where are the horns located on my 535i?
The 2010-2016 BMW 535i has two horns located behind the front bumper. The high-tone horn is on the driver's side, and the low-tone horn is on the passenger's side, near the respective wheel wells.
Can I replace the horn without removing the front bumper?
No, full removal of the front bumper cover is required 🎬 See this step-by-step guide for removing the front bumper for this job. While the driver's side horn is partially visible after removing the wheel well liner, the passenger side horn on the 535i is blocked by the engine oil cooler, making access impossible without taking the bumper off.
My horn stopped working. What should I check first?
Always check the fuses first. The horn system on the F10 5-series uses fuse #8 and fuse #62 (a 15A fuse) located in the fuse box behind the glove compartment. If a fuse is blown, the horn itself has likely shorted out and needs replacement.
Will an aftermarket horn sound different from the original?
It might. BMW uses a specific high and low tone pair to create its signature sound. While an aftermarket part is designed to be a close match, there can be slight variations in tone or volume compared to the OEM part. For a guaranteed original sound, OEM is the safest choice.
Helpful Videos
Technical Specifications
OEM Part Numbers: 61337279781 61337279782 61337254484 61334871993 61337260492
System consists of one high-pitch horn (4) and one low-pitch horn (2).
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.
- BMW 535i: