What is the construction and purpose of horns?

Horns are electric signal elements mounted in a car, most often in the front part of the body. A typical horn consists of a housing, a diaphragm, working contacts, a bracket, and an electrical connector. Its task is to generate a clear acoustic signal when the driver presses the button. Depending on the vehicle version, it may appear as a single signal or a set of two tones.

What are horns used for?

Horns are used to warn other road users and transmit a short acoustic signal in traffic situations. A functional sound signal system increases safety because it allows for a quick reaction when a light signal or the vehicle's presence alone is insufficient. This component works with the steering wheel button, relay, and fuse, so its operation also depends on the state of the electrical system. A malfunction may mean either a failure of the horn itself or a problem in the control circuit.

What is the construction and function of a horn mount?

A horn mount is an element connecting the sound signal to the vehicle structure at a designated mounting point. It serves to stably seat the housing, limit vibrations, and maintain the correct position relative to covers and wires. In practice, its shape, mounting hole, and bracket length may differ depending on the car model. A damaged or corroded mount can cause looseness, noise, and problems with proper part installation.

How to select a horn for a specific car?

It is safest to compare the OEM part number, interchangeable numbers, connector type, and mounting method. It is also worth checking whether the car has a single-tone or dual-tone system and whether the part fits the pre-facelift or post-facelift version. If horns appear in pairs, it is good to also verify the mounting side and the completeness of the brackets.

What symptoms indicate a problem with the horn or installation?

The most common symptoms are no reaction after pressing the button, a quiet signal, intermittent operation, or a distorted tone. Such symptoms may result from a damaged diaphragm, connector corrosion, a broken wire, or a faulty relay. In diagnostics, it is also worth checking the fuse and the condition of the ground point.

How to take care of horns after installation?

After installation, it is worth periodically checking the cleanliness of the housing, the condition of the plug, and the security of the mounting. A horn operating in a zone exposed to water and dirt should be checked during front-end inspections and after body repairs. A quick reaction to a weakening signal allows you to avoid further damage to contacts and brackets.

Horns

At the Global Parts automotive store, we offer a wide selection of original used car parts, including horns for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The horns we offer undergo quality control so that you can be sure that you are receiving a top-class product.

More information

Find it faster

Match to your vehicle

Make

Mercedes SLK R172 Roadster Front Left N/S Horn Signal 510 Hz A0005428804

Product currently unavailable

Part no. 7492205

BMW G20 G20 G20 LCI G21 G22 G42 Alarm Horn Signal Siren High Pitch 7492205

Product currently unavailable

Part no. 6M2T-13A803-AD

Ford S-Max Horn Signal Alarm Siren Double Twin 6M2T-13A803-AD

Product currently unavailable

Part no. 7245422-1

Horn Signal BMW F20 F21 F30 F31 F32 F33 Low Tone Pitch Fanfare 7245422

Product currently unavailable

Part no. 9137670

BMW E88 Convertible Anti Theft Alarm Siren Bracket Mount Holder 9137670

Product currently unavailable

Part no. 7492891

Horn Signal BMW F45 F46 LCI Fanfare Low Tone Pitch Siren 7492891

Product currently unavailable

Part no. 6C1T13A803AA

Ford Transit Horn Signal Fanfare Siren Pitch 6C1T13A803AA

Product currently unavailable

Part no. A2535422200

Mercedes X253 Alarm Siren Horn Signal Low Tone Sound Left N/S 510Hz A2535422200

Product currently unavailable

Part no. 6M2T-13A803-AC

Ford Mondeo Mk4 Horn Signals Alarm Fanfare Pair Set X2 6M2T-13A803-AC

Product currently unavailable

Part no. 2K5951221

VW Volkswagen Caddy 2K Mk3 Fanfare Horn Signal Low Tone Alarm 2K5951221

Product currently unavailable

Part no. 8P0951221C

Audi A3 8P Horn Signal Fan Fare Low Tone Pitch Siren 8P0951221C

Product currently unavailable

Part no. 7P5951184E

Porsche Cayenne 92A Horn Sound Signal Fanfare Alarm High Tone Siren 7P5951184E

Product currently unavailable

Part no. 1908657

Ford Mustang GT Mk6 Horn Signal Fanfare Assembly Set FR3T-13A803-DA

Product currently unavailable

Part no. A0045427820

Mercedes-Benz CLK-Class W208 Horn Signal Fanfare Low Tone 420Hz A0045427820

Product currently unavailable

Part no. 5Q0951223D-1

Volkswagen Golf CD1 Signal Air Horn High Tone 5Q0951223D

Product currently unavailable

Part no. 8372737

BMW 3 Series E36 Horn Low Pitch Tones Signal Siren Alarm 400 Hz 8372737

Product currently unavailable

Part no. 6H52-13A803-AC

Land Rover Freelander 2 Horn Low High Tone Fanfare Set 6H52-13A803-AC

Product currently unavailable

Part no. 4K0035916A

Audi A6 C8 Engine Sound Speaker Box 4K0035916A

Product currently unavailable

Part no. 4K6951221C

Audi A6 C8 Siren Horn Signal Low Tone Fanfare Right O/S Side 4K6951221C

Product currently unavailable

Part no. 4K6951223

Audi A6 C8 High Tone Horn Fanfare Right O/S 4K6951223

Product currently unavailable

Part no. A0075425420

Mercedes GLE C292 ML W166 Horn Low Tone Signal 420Hz Fanfare A0075425420

Product currently unavailable

Part no. 4F0951221A

Audi A6 C6 FL Horn Signal Low Tone Pitch Fanfare 4F0951221A

Product currently unavailable

Part no. A0045429020

Mercedes-Benz E-Class W210 Horn Signal Fanfare High Tone 500Hz A0045429020

Product currently unavailable

Part no. 5A020F9

Mini F55 Alarm Fanfare Siren Horn Signal Low Pitch Tone 5A020F9

Product currently unavailable

Part no. 5Q0951223D

Volkswagen VW Golf SV Mk8 Signal Air Horn High Tone 5Q0951223D

Product currently unavailable

Part no. 6R0951221B

Skoda Rapid NH1 Signal Horn Low Tone Pitch Fanfare 6R0951221B

Product currently unavailable

Part no. A0065428020-1

Mercedes W204 W212 C218 Horn Signal Fanfare High Tone Siren 500Hz A0065428020

Product currently unavailable

Part no. 8379711-1

BMW E46 Horn Signal Low Tone Pitch Fanfare Siren 8379710

Product currently unavailable

Part no. 7394075

Horn Mini F60 Countryman Horn High Pitch Tone Signal Fanfare 7394075

Product currently unavailable

Part no. A0045428020

Mercedes-Benz CL S Class C215 W220 Horn Signal Fanfare Right O/S A0045428020

Product currently unavailable

Part no. A2239005936

Mercedes CL C118 W177 Anti Theft Alarm Siren Horn Signal Fanfare A2239005936

Product currently unavailable

Part no. 7835734

BMW 5 Series E60 E61 LCI M5 Horn High Pitch Tone Fanfare 7835734

Product currently unavailable

Part no. 7P6951221A

Volkswagen VW Touareg 7P Low Tone Pitch Horn Siren Signal Fanfare 7P6951221A

Product currently unavailable

Part no. 6R0951223B

VW Volkswagen Polo 6R Signal Air Horn High Tone Pitch Fanfare 6R0951223B

Product currently unavailable

Part no. 6J0951206

Seat Ibiza 6J Signal Horn High Tone Fanfare 6J0951206

Product currently unavailable

Part no. 7300975-2

BMW F20 F21 F22 F23 F30 F31 F32 F33 Siren Horn Signal High Tone Electric 7300975

Product currently unavailable

Part no. 1S0951223A

Skoda Octavia IV Citigo NF1 Signal Horn High Tone Pitch Fanfare 1S0951223A

Product currently unavailable

Volkswagen Eos 1F Passat B6 Horn Signal Siren Left N/S 3C0951221A

-1%

Part no. 3C0951221A

Volkswagen Eos 1F Passat B6 Horn Signal Siren Left N/S 3C0951221A

Product currently unavailable

Part no. 1J0951605A-1

Volkswagen Transporter T5 Alarm System Siren Anti Theft Signal 1J0951605A

Product currently unavailable

Part no. 8077467

BMW M2 F87 Horn Signal Alarm Siren High Pitch Tone 8077467

Product currently unavailable

Part no. 99663711701

Porsche Carrera 996 Horn Signal Fanfare Alarm System Unit 99663711701

Product currently unavailable

Part no. YEB500080

Range Rover Sport L320 Low Tone Horn Signal Siren Alarm YEB500080

Product currently unavailable

Part no. 6C1T-13A803-AB

Ford Transit Mk7 Horn Signal Double Fanfare Siren Pitch 6C1T-13A803-AB

Product currently unavailable

Part no. 8372738

BMW 3 Series E36 Horn Low Pitch Tones Signal Siren Alarm 400 Hz 8372738

Product currently unavailable

Part no. A6395400076

Mercedes W639 W903 Tone Horn Signal Fanfare A6395400076

Product currently unavailable

Part no. 4H0951221B

Skoda Octavia IV Horn Signal Low Tone Pitch Fanfare 4H0951221B

Product currently unavailable

Part no. A0075425320

Mercedes GLE C292 ML W166 Horn Tweeter Horn Signal 510Hz Fanfare A0075425320

Product currently unavailable

Part no. YEB500080-1

Land Rover Range Rover Sport L320 Low Tone Horn Signal Siren Alarm YEB500080

Product currently unavailable

Part no. A2135424400

Horn Signal Mercedes W213 C238 C257 Alarm Siren High Tone Left N/S A2135424400

Product currently unavailable

Part no. 1C1T-13802-BB

Ford Transit Mk7 Horn Signal Alarm Siren High Tone Pitch 1C1T-13802-BB

Product currently unavailable

Part no. A4615420020

Mercedes W203 S203 CL203 W463 Horn Signal Fanfare Left N/S A4615420020

Product currently unavailable

Part no. 5Q0951221J

Audi Q2 GA Horn Signal Fanfare Alarm Low Tone Left N/S 5Q0951221J

Product currently unavailable

Part no. A1635420120

Mercedes ML W163 Anti Theft Alarm Siren Horn Signal A1635420120

Product currently unavailable

Part no. A2045456740-1

Mercedes W204 Anti-Theft Alarm Siren Horn Signal Bracket Holder A2045456740

Product currently unavailable

Part no. YEB500072

Land Rover Discovery 3 L319 High Tone Pitch Sound Signal Horn Fanfare YEB500072

Product currently unavailable

Part no. AV1T-13A803-AC

Ford Fiesta Mk7 Twin Horn Assembly Low & High Tone Signal AV1T-13A803-AC

Product currently unavailable

Part no. 9243750-1

BMW E60 E61 E65 E81 E87 E90 E91 E92 Horn Signal Anti Theft Alarm Siren 6936009

Product currently unavailable

Part no. A2138201101-1

Mercedes W176 W205 W207 W213 Anti-Theft Alarm Siren Horn Signal A2138201101

Product currently unavailable

Part no. CPLA-13A803-AB

Land Rover Range Rover Sport L494 Horn Signal Low High Tone CPLA-13A803-AB

Product currently unavailable

Part no. A4535420400

Smart ForTwo C453 Renault Twingo III Horn Signal Fanfare A4535420400

Product currently unavailable

Part no. CPLA-13A803-AC

Range Rover Sport L494 Horn Signal Pair High Low Tone CPLA-13A803-AC

Product currently unavailable

Part no. 7214931-1

Horn BMW F40 F44 Fanfare Signal Unit Siren Sound Low Pitch Tone 7214931

Product currently unavailable

Part no. a0075426020

Mercedes SLK R172 Horn Signal Right O/S Fanfare 400Hz A0075426020

Product currently unavailable

Part no. 3B0951223E

Audi Q2 GA High Tone Signal Fanfare Horn Warning Signal 3B0951223E

Product currently unavailable

Part no. 7P6951182B

Volkswagen Touareg 7P Horn High Tone Bracket Mount Carrier Support 7P6951182B

Product currently unavailable

Part no. 3DD951221A

Volkswagen Touareg 7L Horn Sound Signal Fanfare Alarm Low Tone Siren 3DD951221A

Product currently unavailable

Part no. 3DD951223A

Volkswagen Touareg 7L Horn Sound Signal Fanfare Alarm High Tone Siren 3DD951223A

Product currently unavailable

Part no. A1718202526

Warning Alarm Mercedes W220 W215 W211 Horn Siren A1718202526

Product currently unavailable

Part no. 8X0951223B

Audi A1 8X Horn Signal Fare High Tone Pitch Siren 8X0951223B

Product currently unavailable

Part no. A2198203226

Mercedes-Benz A C CLK Class W169 W203 C209 Horn Warning Alarm Siren A2198203226

Product currently unavailable

Part no. A0065429020

Horn Signal Mercedes W169 W202 W203 ML W164 Fanfare Right O/S A0065429020

Product currently unavailable

Part no. A2075421720

Mercedes C207 Coupe Horn Signal Fanfare 420Hz Front Right O/S A2075421720

Product currently unavailable

Part no. 7P6951182C

Volkswagen Touareg 7P Horn Low Tone Bracket Mount Carrier Support 7P6951182C

Product currently unavailable

Skoda Superb MK3 High Tone Horn Signal Alarm Siren 3C0951223E

-1%

Part no. 3C0951223E

Skoda Superb MK3 High Tone Horn Signal Alarm Siren 3C0951223E

Product currently unavailable

Part no. A2038203826

Mercedes CLK W203 W209 Anti Theft Alarm Siren Horn Signal A2038203826

Product currently unavailable

Part no. 9657476680

Peugeot 3008 Twin Double Horn Signal Fanfare High Low Tone Pitch 9657476680

Product currently unavailable

Part no. H1BT-13A803-BB

Ford Fiesta Mk7 Double Horn Signal Low High Tone Pitch Set H1BT-13A803-BB

Product currently unavailable

Part no. GK2T13A803AA

Ford Transit Mk8 Horn Signal Low High Tone Set GK2T13A803AA

Product currently unavailable

Part no. 9682892280

Peugeot 207 Horn Sound Signal Fanfare Alarm High Tone Siren 9682892280

Product currently unavailable

Part no. A0065421220-2

Mercedes W169 W202 W203 W220 Horn Signal Fanfare A0065421220

Product currently unavailable

Part no. 7192036

BMW 1 Series E87 Horn High Pitch Tone Fanfare 7171750

Product currently unavailable

Part no. A0055426620

Horn Signal Mercedes W203 W219 W229 Fanfare High Tone 510Hz A0055426620

Product currently unavailable

Part no. EH22-19G229-BA-2

Range Rover Evoque L538 Alarm Siren Horn Sound Signal Unit EH22-19G229-BA

Product currently unavailable

Part no. A0055425720

Horn Signal Mercedes W203 W251 Right O/S Alarm Siren High Tone A0055425720

Product currently unavailable

Part no. M8A2-13802-AB

Range Rover Velar L560 Dual Note Electric Horn Front Right O/S M8A2-13802-AB

Product currently unavailable

Part no. 80A951223

Audi Q5 Mk2 FY High Tone Horn Signal Alarm Siren 80A951223

Product currently unavailable

Part no. 5B72AC4

Mini F66 Alarm System Power Siren With Inclination Indicator 5B72AC4

Product currently unavailable

Part no. BM5T-13A803-AC-1

Ford Focus Mk3 Horn Signals Alarm Fanfare Pair Set X2 BM5T-13A803-AC

Product currently unavailable

Part no. 7404430

Horn BMW X3 G01 X3M F97 X4 G02 X4M F98 Low Pitch Tone Sound Signal Horn 7404430

Product currently unavailable

Part no. 6R0951181C-1

Volkswagen Polo Mk5 6R Horn Fanfare Signal Double 6R0951181C

Product currently unavailable

Part no. DH52-13A803-AC

Land Rover Freelander 2 L359 Horn Signals Dual Tone DH52-13A803-AC

Product currently unavailable

Part no. 6C1T-13A803-AB-1

Ford Transit Mk7 Horn Signal Double Fanfare Siren Pitch 6C1T-13A803-AB

Product currently unavailable

Part no. 2T1T-13802-AG

Ford Transit Connect Mk1 Low Tone Pitch Horn Siren Signal 2T1T-13802-AG

Product currently unavailable

Part no. YWK500040-1

Range Rover Sport L320 Anti Theft Alarm Siren Signal Unit YWK500040

Product currently unavailable

Part no. 8N0951223A

Audi TT 8N Horn Signal Fanfare High Tone Centre Right O/S 8N0951223A

Product currently unavailable

Part no. A0005405500-1

Horn Signal Mercedes W176 W246 W156 W117 Fanfare 400Hz Left N/S A0005405500

Product currently unavailable

Part no. AMR3467

Land Rover Discovery 2 L318 Horn Alarm Signal Fanfare AMR3467

Product currently unavailable

Part no. A0005428904

Mercedes SLK R172 Roadster Front Right O/S Horn Signal 420 Hz A0005428904

Product currently unavailable

...

Showing 397-495 of 518 products