How can the horn units be accessed, and How to remove it on Volvo S40?

Volvo advises that the horn units can be accessed by removing the grille, but due to the difficulty of grille removal with the bumper in place, it is recommended to remove the front bumper to prevent the risk of damage. Once the front bumper is removed, unclip the plastic cover from the bumper mounting bar, unbolt the horn from its bracket, and disconnect the wiring plug as the horn is removed. Reinstallation is the reverse of the removal process.

How to verify the function of all exterior and interior lights on Horn for diesel engines on Volvo S40?

With the ignition turned on where required, check the function of all outside lights. Verify the brake lights with the help of an assistant or you can reverse near a reflective door and check the rear lights are working independently without affecting other lights other brake lights work simultaneously, for example turn on more than one rear lights and then test brake lights. Any unusual results usually mean that there is an earth-fault or poor connection at the back light unit. Also, with the help or with the aid of a reflective surface, verify that the headlights are working on main and dipped beam. Check to ensure all lights in the interior, such as those in the glovebox and luggage areas are working by turning the ignition on and ensuring that all applicable warning lights come on as they should, details of which are available in the vehicle handbook. After starting the engine, make sure the right lights go off. When driving at night, check to make sure all the instrument panel and facia lighting is functioning properly. If there are any problems, correct them as soon as possible. Lastly, choose the right time of the day to test the horn's functioning.

Genuine Volvo S40 Horn

Alarm Horn

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

6 Horns found

View related parts
Volvo S40 Horn, Driver Side Part Number: 30796375
$50.80 MSRP: $65.07
You Save: $14.27 (22%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2004-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volvo S40 Horn, Passenger Side Part Number: 30796376
$53.22 MSRP: $68.16
You Save: $14.94 (22%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2004-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volvo S40 High Note Horn Part Number: 30796712
$62.40 MSRP: $80.58
You Save: $18.18 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Horn; High Note Horn
- Replaced by: 32285630
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2004-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volvo S40 Lower Note Horn Part Number: 30796711
$62.40 MSRP: $80.58
You Save: $18.18 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Horn 2506; Horn, Lower Note Horn
- Replaced by: 32285631
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2004-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volvo S40 Horn, Driver Side Part Number: 30855941
$39.04 MSRP: $45.71
You Save: $6.67 (15%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2000-2004 | Base, i, LSE, T5 | 4 Cyl 1.9 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volvo S40 Horn, Passenger Side Part Number: 30855942
$39.04 MSRP: $45.71
You Save: $6.67 (15%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following Vehicles:
- 2000-2004 | Base, i, LSE, T5 | 4 Cyl 1.9 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS

Volvo S40 Horn

Volvo S40 Horn has a major responsibility for providing the driver with an immediate and audible alerting device to inform others on the road and on the ground, and that alone makes every trip more secure. Throughout its model years Volvo has equipped the car with two primary sound systems, which aim at the same safety objective in somewhat different directions. Early designs applied a small electric dual-diaphragm Horn that uses an electrical impulse to create vibrations, giving a distinct two-note beep that can cut through city noise with just enough harshness. Subsequent S40 models added a trumpet-style air unit that was fed by a small under-hood compressor, providing a more pronounced burst which can be heard over highway wind and larger cars. The major distinction is in the source of power; the electric style requires only the 12-volt circuit in the vehicle, whereas the air type stores compressed air to blast out noisily. Similarities between the two designs include the use of durable housings and corrosion-resistant contacts to help them withstand years of weathering conditions, and the use of a steering-wheel switch joined by a relay to allow the driver to hear the sound as soon as the switch is pressed. Volvo has done it right by adjusting every system to the standard decibel levels in international contexts and still making it sound unique, thus it is immediately picked up by other motorists as a warning. With such considered decisions Volvo owners have a dependable Horn that is courteous and authoritative in the course of each drive.

OEM parts are the only choice for top quality and real functionality. They pass strict checks, and they match Volvo's factory specs, so installation is easy. If you need new Horn and you want quality and fit. You will find both here. Our site has a wide range of OEM Volvo S40 parts. The prices are unbeatable, allowing you to get value for money. Each genuine S40 Horn comes with the manufacturer's warranty. That gives you peace of mind. We ship fast to your door. Order today, and enjoy a smooth, no-hassle upgrade with parts that fit right.

Volvo S40 Horn Parts and Q&A

Horn, Driver Side
30796375
Q: How can the horn units be accessed, and How to remove it on Volvo S40?
A:
Volvo advises that the horn units can be accessed by removing the grille, but due to the difficulty of grille removal with the bumper in place, it is recommended to remove the front bumper to prevent the risk of damage. Once the front bumper is removed, unclip the plastic cover from the bumper mounting bar, unbolt the horn from its bracket, and disconnect the wiring plug as the horn is removed. Reinstallation is the reverse of the removal process.
Horn, Passenger Side
30796376
Q: How to verify the function of all exterior and interior lights on Horn for diesel engines on Volvo S40?
A:
With the ignition turned on where required, check the function of all outside lights. Verify the brake lights with the help of an assistant or you can reverse near a reflective door and check the rear lights are working independently without affecting other lights other brake lights work simultaneously, for example turn on more than one rear lights and then test brake lights. Any unusual results usually mean that there is an earth-fault or poor connection at the back light unit. Also, with the help or with the aid of a reflective surface, verify that the headlights are working on main and dipped beam. Check to ensure all lights in the interior, such as those in the glovebox and luggage areas are working by turning the ignition on and ensuring that all applicable warning lights come on as they should, details of which are available in the vehicle handbook. After starting the engine, make sure the right lights go off. When driving at night, check to make sure all the instrument panel and facia lighting is functioning properly. If there are any problems, correct them as soon as possible. Lastly, choose the right time of the day to test the horn's functioning.