Description
Tailgate opener for Citroën C3 II A51 and DS3 cars
Part description
This tailgate opener is a used original car part designed for Citroën C3 II A51 and DS3 cars. It is an electrical component from the group of switches, which ensures convenient and correct control of the opening of the back cover. Parts of this type are often also searched by product number, in this case 6490CN.
It is an advantage for mechanics and do-it-yourselfers that when replacing a worn or non-functioning controller, full opening functionality can be restored without the need for complex interventions in other parts of the car. A used original part is a suitable choice for those looking for a functional replacement with an emphasis on proper execution and a reasonable price.
Technical information
Product codes
Installation recommendations
Generally/typically, when replacing the tailgate controller, the exact procedure may vary depending on the specific design of the car. Below is a practical general procedure for replacing this type of electrical switch.
1) Before assembly
- Check that the new and original part match in shape, connector, mounting and marking 6490CN.
- Inspect the condition of the connector, contacts and plastic parts, whether they are cracked, oxidized or mechanically damaged.
- Compare the length of the cable outlet, the position of the latches and the landing surface with the old piece.
- Before working, it is advisable to disconnect the battery, especially if you will be handling electrical connectors.
2) Necessary tools and materials
- Basic set of screwdrivers and common hand tools
- Plastic pry bar for panel removal
- Cleaning agent for electrical contacts
- Clean cloth
- Work gloves and suitable lighting
3) Step-by-step assembly procedure
- Secure the vehicle against movement and open access to the area where the controller is mounted.
- If necessary, carefully remove internal or external covers that prevent access to the controller.
- Disconnect the electrical connector of the old controller without force to avoid damaging the latch.
- Unfasten the original part according to the specific attachment method.
- Remove the old controller and compare it with the replacement.
- Check the surroundings of the installation site and, if necessary, remove dirt or signs of oxidation.
- Place the used controller in the correct place so that it sits well in the holder.
- Connect the electrical connector and verify that it is secure and free of play.
- Reinstall any removed covers, trim or fasteners.
- Restore vehicle power if it was disconnected during work.
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4) Post-assembly checks and test drive/function verification
- Test the function of opening the back cover repeatedly under the same conditions.
- Verify that the controller responds correctly and without delay.
- Check that nothing rubs or wobbles after assembly and that all cover elements fit correctly.
- After a short period of use, recheck the connection and condition of the connector.
5) The most common assembly mistakes + how to avoid them
- Part swapping by appearance – always match the part number and connector.
- Damage to plastic covers during disassembly – use a plastic pry bar and work carefully.
- Mounting in a contaminated area – clean the contact and mounting surfaces before installation.
- Normal switch wear from frequent use
- Intrusion of moisture and dirt into the controller area
- Oxidation of electrical contacts
- Mechanical damage when handling the back cover or during unprofessional disassembly
- Damage to wiring or connector leading to irregular function
