Description
Left boot lock for Peugeot 307 CC with functional microswitch 8484L3.
This left-side boot (trunk) lock is designed for Peugeot 307 CC models and includes a working microswitch (8484L3) that integrates with the vehicle’s central locking and alarm circuits. A direct replacement for worn or damaged latches, this unit restores reliable closing, secure locking and correct electrical signalling for boot-closed detection. Ideal for professional workshops and experienced DIY mechanics searching by part numbers such as 9651004680, 8484L3 or 8484Z2.
Technical Information
- Manufacturer: Peugeot (Stellantis)
- Model: Peugeot 307 CC
- Product Codes: 9651004680
- Other Numbers: 8484L3, 8484Z2
What This Part Does
The boot lock secures the tailgate when closed and houses the microswitch that signals the vehicle when the boot is fully shut. The microswitch is used by the central locking system and interior warning circuits, and a faulty switch can cause the boot to appear open to the car’s electronics even when mechanically locked. The latch mechanism itself provides the mechanical capture and release of the boot striker.
Installation Recommendations
Replacement is straightforward for qualified technicians or competent DIYers with basic hand tools. Typical steps:
- Open the boot and remove the internal trim panel to access the lock unit.
- Disconnect the electrical connector for the microswitch and any central locking actuator connections.
- Unscrew the mounting fasteners holding the lock to the boot lid and remove the old unit.
- Fit the new lock, tighten fasteners to manufacturer torque where available, reconnect the electrical connector and test operation before refitting the trim.
Tips: Check and, if necessary, lubricate the striker and moving parts with a suitable dry or graphite lubricant (avoid heavy oils that attract dirt). Use a small amount of dielectric grease on electrical connectors to reduce corrosion. Verify alignment so the striker engages smoothly and the microswitch triggers reliably.
Common Failure Causes
Boot locks commonly fail due to:
- Corrosion and ingress of moisture causing mechanical seizure or contact failure in the microswitch.
- Wear of internal latch components from frequent use, leading to poor engagement or rattling.
- Electrical faults in the microswitch (intermittent open/closed signals) affecting central locking and dashboard indicators.
- Misalignment of the striker due to body damage or hinge wear, increasing load on the latch and accelerating wear.
Addressing these issues early—cleaning, lubrication, and ensuring correct striker alignment—extends service life and avoids boot not locking or false open warnings.
Why Choose This Unit
Supplied with the functional microswitch 8484L3 and matched product codes (9651004680 / 8484Z2), this lock is a practical replacement for technicians who need a precise fit and reliable electrical integration. Searching by OE numbers improves findability and ensures you order the correct part for Peugeot 307 CC vehicles.








