Description
Control for opening the tailgate for Citroën C4 and Peugeot 308 T7
This tailgate release switch is designed for direct fitment on select Citroën and Peugeot models and is commonly referenced by product code 6490R3. Ideal for professional workshops and DIY enthusiasts, the switch restores reliable tailgate operation after a failed or intermittent opener. The compact unit replaces worn or damaged cockpit switches with an OEM-style fit and connector layout, helping to avoid additional wiring modifications. Frequently searched under the code 6490R3, this part improves vehicle usability and prevents inconvenience caused by a stuck or inoperable tailgate.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 (C4 II) | Peugeot 308 (T7)
- Product Codes: 6490R3
- Additional Numbers: Not Available
Installation Recommendations
Before starting work, isolate the vehicle electrical system by disconnecting the negative battery terminal to prevent short circuits. Remove the interior trim around the tailgate handle or the switch housing carefully using appropriate trim tools to avoid damaging clips. Unplug the electrical connector and remove any retaining screws or clips. Fit the new switch in reverse order, ensuring the connector is fully seated and the switch body is correctly aligned. After installation, reconnect the battery and verify correct operation of the tailgate release multiple times. If electrical faults persist, check the related fuse and wiring harness for corrosion or damage.
How To Replace
- Open the tailgate and position it safely (use support if needed).
- Remove interior trim panels to access the switch mounting—use plastic trim tools to avoid scratching.
- Disconnect the battery negative terminal.
- Unplug the switch electrical connector and remove retaining screws or clips.
- Install the new switch, secure fasteners, reconnect the electrical connector and refit trim.
- Reconnect the battery and test the switch operation, confirming the tailgate unlocks and closes correctly.
Common Failure Causes
The most frequent reasons for switch failure are mechanical wear of the internal microswitch, moisture ingress leading to corrosion of contacts, and plastic fatigue from repeated use or impact. Environmental exposure (road salt, water) accelerates corrosion and electrical faults. Typical service life varies with usage and conditions; units in high-use vehicles or corrosive environments may fail after several years. Intermittent operation often stems from dirty connectors or degraded contacts and can sometimes be diagnosed by checking the connector, cleaning contacts, and inspecting wiring before full replacement.
