Description
Set of locks for CITROEN C4 II B7 cars
Driver’s door lock plus switch box
2 x key
Part description
This set of locks and 2 keys is designed for Citroën C4 II B7 cars. It includes a driver door lock, switch box and 2 keys, making it a practical solution when replacing damaged or worn locks. The part is suitable for repairs where it is necessary to maintain functional mechanical control and alignment of individual parts of the set.
The advantage of a complete set is that the individual elements were used together. This will be appreciated by both car mechanics and home repairers who are looking for a used car part by a specific number and need a reliable replacement without unnecessary searching for separate components.
Technical information
- Manufacturer: Stellantis Citroën Peugeot
- Model: Citroën C4 II B7
- Other numbers: 9673578480, 4162PT
Product codes
- Product codes: 9673578480, 4162PT
- Models: Citroën C4 II, Citroën C4 II B7
Installation recommendations
For this kit, the exact replacement procedure may vary depending on the specific car model. Below is a general and typical procedure for replacing the driver’s door lock and ignition switch.
1) Before assembly
- Check the visual condition of all parts of the set.
- Compare the new and original part by shape, fit, connectors and mechanical design.
- Verify that the kit includes the driver’s door lock, ignition switch and 2 keys.
- Disconnect the battery before working, especially if it interferes with the vicinity of the switch box.
2) Necessary tools and materials
- Common set of screwdrivers and sockets
- Plastic pry bar for panel removal
- Pliers and small assembly tools
- Cleaning agent for mechanical parts
- Work gloves and lighting
3) Step-by-step assembly procedure
- Disconnect the battery and secure the vehicle against accidental movement.
- Remove the inner door trim according to the normal procedure for the model.
- Carefully release access to driver’s door lock mechanism.
- Disconnect the rods, connectors and fasteners of the original lock.
- Remove the original door lock and compare it with the supplied part.
- Install the driver’s door lock in its original position and properly seat all mechanical linkages.
- In the switch box area, remove the steering column covers or surrounding parts if needed for access.
- Disconnect and remove the original switch box following normal procedure for this type of part.
- Install the supplied switch box and check that the key is seated correctly and works freely.
- Reconnect all connectors, tie rods and fasteners.
- Before completing the trim, test the mechanical function of the key in both parts of the set.
- After verifying function, refit all covers and trim.
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4) Post-assembly checks and test drive / function verification
- Verify that the key works correctly in the ignition and in the driver’s door lock.
- Check for smooth rotation without rubbing or excessive resistance.
- Check that all disassembled parts are correctly fixed back.
- After reconnecting the battery, verify the basic function of the vehicle after assembly.
5) The most common assembly mistakes + how to avoid them
- Part exchange – always compare numbers 9673578480 and 4162PT as well as mechanical design.
- Damage to trim or mounts – use appropriate plastic disassembly tools.
- Incorrect seating of tie rods and joints – test the function of the lock manually before final assembly.
- Work without disconnecting the battery – always disconnect the power supply around the switch box.
- Early completion – verify functionality first before returning trim and covers.
Reasons why the part is damaged
- Normal mechanical wear from long-term use.
- Frequent use of the key and wear of the inner parts of the insert or switch box.
- Intrusion of dirt and moisture into the locking mechanism.
- Force opening or damage while trying to unlock.
- A damaged or bent key which gradually destroys the internal mechanism.
- Inappropriate handling during disassembly or assembly.
