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.

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Mercedes W177 Horn Signal Front Left Side N/S 420Hz Siren Signal A2475403206

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BMW 5 6 Series E60 E61 LCI M5 Horn Signal Low Tone Pitch 7835736

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Part no. 1908657

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

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Part no. 4K0035916A

Audi A6 C8 Engine Sound Speaker Box 4K0035916A

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Part no. 7835734

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

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Part no. A0045428020

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

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Part no. DS7T-19N217-AA

Ford Mondeo Mk5 Alarm Siren Horn Fanfare Module Control Unit DS7T-19N217-AA

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Part no. 5Q0951221L

VW Volkswagen Golf Mk7 Horn Signal Fanfare Low Tone Pitch Siren 5Q0951221L

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Part no. 8379711-1

BMW E46 Horn Signal Low Tone Pitch Fanfare Siren 8379710

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Part no. 1371440080

Fanfare Horn Citroen Relay Peugeot Boxer Signal Low Tone Pitch 1371440080

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Part no. 7P5951183E

Porsche Cayenne Horn Fanfare Signal Siren Low Tone Pitch 7P5951183E

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Part no. 8U0951209-1

Audi Q3 8U Horn Signal Fanfare Low Tone 400Hz Front Left N/S 8U0951209

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Part no. 7P5951184E

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

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Part no. 6M2T-13A803-AD

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

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Part no. 4K6951221C

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

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Part no. 4K6951223

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

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Part no. 8372738

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

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BMW 5 Series E60 E61 E63 E64 Bracket Low High Tone Horn Set 6935709

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Part no. 6935709-1

BMW 5 Series E60 E61 E63 E64 Bracket Low High Tone Horn Set 6935709

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Part no. 6H52-13A803-AC

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

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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

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Part no. 6C1T-13A803-AB

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

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Part no. 8372737

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

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Part no. A0045427820

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

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Part no. YEB500080

Range Rover Sport L320 Low Tone Horn Signal Siren Alarm YEB500080

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Part no. A2045456740

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

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Part no. 4H0951221B

Skoda Octavia IV Horn Signal Low Tone Pitch Fanfare 4H0951221B

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Part no. 1S0951223A

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

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Part no. 7492205

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

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Part no. A0045429020

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

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Part no. 7300975-2

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

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Part no. 1J0951605A-1

Volkswagen Transporter T5 Alarm System Siren Anti Theft Signal 1J0951605A

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Part no. AV6N-19G229-AE

Ford Focus Mk3 Anti Theft Alarm Horn Signal AV6N-19G229-AE

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Part no. A2535422200

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

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Part no. 6R0951221B

Skoda Rapid NH1 Signal Horn Low Tone Pitch Fanfare 6R0951221B

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Part no. 9137670

BMW E88 Convertible Anti Theft Alarm Siren Bracket Mount Holder 9137670

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Part no. 9396058

Mini F55 F56 F57 Single Horn Cabel Wiring 9396058

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Part no. A0065428020-1

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

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Part no. 7248686

BMW F07 GT Horn Signal Pitch Fanfare Alarm Siren 7248686

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Part no. 7394075

Horn Mini F60 Countryman Horn High Pitch Tone Signal Fanfare 7394075

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Part no. A6395400076

Mercedes W639 W903 Tone Horn Signal Fanfare A6395400076

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Part no. 7P6951221A

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

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Part no. 6R0951223B

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

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Part no. 6J0951206

Seat Ibiza 6J Signal Horn High Tone Fanfare 6J0951206

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Part no. 5C0951221B

Volkswagen Touran 1T Signal Air Horn Low Tone Pitch Fanfare 5C0951221B

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Part no. 8495328

Mini F60 Countryman Horn Low Pitch Tone Signal Fanfare 8495328

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Part no. 7245422-1

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

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Part no. 7492891

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

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Part no. BK2T13802AB

Ford Transit Custom Horn Signal Fanfare Siren Pitch BK2T-13802-AB

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Part no. 5A020F9

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

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Part no. 8E0961223A

Audi A4 B7 Horn Sound Signal Fanfare Siren 8E0961223A

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Part no. A0005428804

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

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Part no. A9068200085

Mercedes Sprinter W906 Horn Signal Fanfare Alarm Siren Pitch A9068200085

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Part no. 5Q0951223D

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

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Part no. 6C1T13A803AA

Ford Transit Horn Signal Fanfare Siren Pitch 6C1T13A803AA

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Part no. A2535422100

Mercedes GLC C253 Horn Signal Fanfare Front Right O/S Low Tone A2535422100

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Part no. A9065400076-1

Mercedes Sprinter W906 Horn Signal Fanfare Siren A9065400076

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Part no. A2239005936

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

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Part no. 8L0951605A

Audi A4 B7 Alarm System Siren Anti-Theft Horn Signal 8L0951605A

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Part no. 8077467

BMW M2 F87 Horn Signal Alarm Siren High Pitch Tone 8077467

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Part no. 5Q0951223D-1

Volkswagen Golf CD1 Signal Air Horn High Tone 5Q0951223D

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Part no. A0075425320

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

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Audi A4 B7 Horn Sound Signal Fanfare Alarm Low Tone Siren 8E0951221C

-5%

Part no. 8E0951221C

Audi A4 B7 Horn Sound Signal Fanfare Alarm Low Tone Siren 8E0951221C

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Part no. 6M2T-13A803-AC

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

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Part no. 9802888080

Horn Signal Citroen Berlingo Peugeot Partner Fanfare Alarm 9802888080

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Part no. 2K5951221

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

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Part no. A0075425420

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

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Part no. A0065427920

Mercedes R172 Horn Signal Alarm Siren High Tone Front Left N/S A0065427920

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Part no. A0065421220-1

Mercedes W169 W202 W203 W220 Horn Signal Fanfare A0065421220

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Part no. 7410917

BMW X1 F48 X2 F39 Horn Low Pitch Tone Signal 7410917

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Part no. 1K8951605A

Volkswagen Scirocco MK3 Golf MK6 Seat Ibiza 6J Alarm Siren Horn 1K8951605A

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Part no. 6236E3

Peugeot 307 Horn Signal Fanfare Sound Alarm High Tone Siren 6236E3

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Part no. 8P0951230

Audi A3 8P Horn Signal Fanfare High Pitch Tone 8P0951230

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Part no. 8V2T-13832-AA

Ford Fiesta Mk7 Alarm Horn Signal Siren 8V2T-13832-AA

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

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

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Part no. A2038203826

Mercedes CLK W203 W209 Anti Theft Alarm Siren Horn Signal A2038203826

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Part no. A0055426720-1

Mercedes S211 W211 Tone Horn Signal Woofer 420Hz Left N/S A0055426720

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Part no. A1635420120

Mercedes ML W163 Anti Theft Alarm Siren Horn Signal A1635420120

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Part no. A4615420020

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

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Part no. A0055426620

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

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Part no. A0065420720

Mercedes W221 Fanfare 420Hz Front Right O/S Horn Signal A0065420720

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Part no. 8X0951223B

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

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Part no. A2075421720

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

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Part no. A0065427720

Mercedes W166 High Tone Tweeter Horn Signal Fanfare Alarm 510Hz A0065427720

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Part no. 7404430

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

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Part no. YWK500040-1

Range Rover Sport L320 Anti Theft Alarm Siren Signal Unit YWK500040

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Part no. A2135424400

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

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Part no. 6R0951223A

VW Volkswagen Polo 6R Signal Air Horn High Tone Pitch Fanfare 6R0951223A

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Part no. A1718202526

Warning Alarm Mercedes W220 W215 W211 Horn Siren A1718202526

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Part no. 6R0951221A

VW Volkswagen Polo 6R Signal Air Horn Low Tone Pitch Fanfare 6R0951221A

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Part no. A0045423620

Horn Signal Mercedes W124 W202 W210 Fanfare High Tone Siren 485Hz A0045423620

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Part no. a0075426020

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

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Part no. 7839345

BMW 5 6 Series E60 E61 LCI M5 Horn Signal High Tone Pitch 7839345

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Part no. A0005428904

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

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Part no. 7192036

BMW 1 Series E87 Horn High Pitch Tone Fanfare 7171750

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Part no. K8D2-13801-AA

Land Rover Discovery Sport L550 Horn Siren Hooter High Tone K8D2-13801-AA

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Part no. 6R0951181C

Volkswagen Polo Mk5 6R Horn Fanfare Signal Bracket Holder 6R0951181C

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Part no. GK2T-13A803-AB

Ford Transit Mk8 Horn Signal Fanfare High Low Tone Set Pair GK2T-13A803-AB

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Part no. 2T1T-13802-AG

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

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