Description
Acoustic horn for Citroën C4 Picasso and Peugeot 307 CC
Description
Direct-fit replacement horn designed for front-end installation in Citroën C4 Picasso and Peugeot 307 CC models. This compact 12V automotive horn delivers a clear, attention-grabbing sound suitable for daily driving and professional service use. Frequently searched under part number 6236F8, it is supplied as a ready-to-install electrical component for mechanics and DIY enthusiasts who require a quick and reliable horn exchange.
Function and Benefits
The horn is an electromechanical device that converts electrical energy into a loud acoustic signal via a vibrating diaphragm. Benefits of replacing a faulty unit include restored audible warning capability, improved safety, and compliance with road regulations. The unit is compact, mounts to a chassis ground point, and is compatible with the original horn relay and fuse circuits used by the specified models.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4 Picasso; Peugeot 307 CC
- Product Codes: 6236F8
- Additional Numbers: Not Specified
Compatibility
Fits Citroën C4 Picasso and Peugeot 307 CC applications that used the original-equipment horn matching code 6236F8. Use the part code in searches to quickly confirm fitment for a particular vehicle variant.
Replacement Procedure (Summary)
1. Disconnect the negative battery terminal before starting work to avoid short circuits. 2. Locate the horn—commonly mounted behind the front grille, near the radiator support, or under the bumper. 3. Disconnect the electrical connector and remove the mounting bolt(s). 4. Transfer any mounting bracket if required and fit the new horn using the original bolt(s). 5. Reconnect the electrical connector, reconnect the battery, and test the horn operation. 6. Verify fuse and relay continuity if the horn does not sound after installation.
Mounting Recommendations
Mount the horn securely to a metal chassis or bracket to ensure proper grounding and optimal sound projection. Use the original mounting point where possible to preserve correct alignment and protection from road debris. Tighten fasteners to a firm setting without over-torquing to avoid damaging the horn housing or bracket. Protect the electrical connector from moisture and ensure wiring insulation is intact.
Why This Part Most Commonly Fails
Horn failure is typically caused by corrosion of electrical contacts or terminals, water ingress (especially on vehicles driven in wet conditions or with compromised splash protection), mechanical damage from impacts, or fatigue of the internal diaphragm after many years of use. Electrical issues such as a blown fuse, faulty relay, or poor ground connection may mimic horn failure but originate elsewhere in the circuit.
Practical Tips for Mechanics and DIYers
- Check Fuse and Relay First: Before replacing the horn, verify that the horn fuse and relay are functional to avoid unnecessary part replacement.
- Test Grounding: A poor ground will severely reduce horn volume—clean the mounting surface and ensure metal-to-metal contact.
- Protect Connectors: Apply dielectric grease to connectors to reduce future corrosion in exposed locations.
- Keep the Part Number Handy: Searching 6236F8 speeds up sourcing and confirms compatibility for the C4 Picasso and 307 CC.
Note
This description is intended to provide clear technical and practical guidance for professionals and competent DIYers carrying out horn replacement on the listed models.





