One of the doors of your Citroen C4 no longer locks properly, and it is rather problematic for the safety of your car but also for your safety because if the door opens when you drive it can become dangerous. Especially since if the locking is not done enough you risk finding water infiltration and other. This is the reason why in this article we will help you understand why closing the door is blocking. Then we will send you tips so that fix your problem.
Why does the door of my Citroen C4 no longer lock?
There are various possibilities when the door of your Citroen C4 no longer locks. Indeed as and when the elements can wear out et hinder a good lock of the vehicle. This is the reason why we will help you identifier What is your problem. You should know that if all the doors no longer lock on your Citroen C4, this could reveal a centralization problem. If this is your case, we advise you to read the following article for more details: Citroen C4 no longer closes.
Door that no longer locks on Citroen C4: Lock seized:
As time goes by it is sometimes possible that the locking system seizes up. Indeed to walk properly this one is lubricated during the manufacture of the vehicle, however this oil can get dirty et take dust. In general, a car lock is not a wearing part, it should normally be functional for the life of the vehicle. However, if you find yourself in a dusty area, then sometimes the system is blocked.
In order to validate the diagnosis, you can verify the state of the lock in the door of your Citroen C4. If you see black residue, then you should clean the lock.
Door that no longer locks on Citroen C4: Deregulated striker:
It is also possible that the problem comes a misalignment between the door and your Citroen C4. When the door is heavy, she could end up stoop and therefore no longer be online with the vehicle hook. If this is your case the door should bounce because the lock and the hook do not fit properly. Sometimes only two millimeters of offset can jam the closure.
To see the difference, stand in front of the lock et gently close the door, you should find that the hook does not fit on the lock. Therefore, arranging the door in this situation can be a bit complicated, but you can however adjust the hook and this solution turns out to be rather accessible.
Door that no longer locks on Citroen C4: Broken closing strike:
In the case where the door bounces, it also happens that the problem comes from the strike located on the door. This must interlock with the hook and activate the lock once the door is closed. However when you have the habit of slamming the door it sometimes happens that the lock breaks.
In order to check if this is your case, use a screwdriver to mimic the hook. In case when you are at the end of the lock the latch does not engage that means that it will be necessary to replace the lock of your Citroen C4.
Door that no longer locks on Citroen C4: Linkage issue
Finally when you feel that the handle is found to be less resistant, then the problem may be comes from the door linkage. Indeed to connect the interior and exterior opening mechanisms as well as centralization, metal rods allow the systems to be activated. In the event that a stems are loose or deformed this implies that the system will no longer be able to lock.
How to repair a door that no longer locks on Citroen C4?
Door that no longer locks on Citroen C4: Unlock a lock:
It will take equip yourself with a degreaser like the WD40 on the internet. Then the first step will be to remove the door trim from your Citroen C4 so as to have access to the mechanism. You will need the help of a torx key and a flat screwdriver. Remove the handle et detach the trim slowly so as not to break the clips. Unscrew the torx screws arranged on the edge of the door. When the trim is removed you will then need to using a clean cloth, clean the inside with the degreaser. This way you will be able to check if the elements are deformed or if a link rod is loose.
Door that no longer locks on Citroen C4: Adjust the hook:
You will have to equip yourself a torx key, for this operation it will not be necessary to remove the trim. After that save the original setting torx screws, and unscrew the fasteners. This will allow you to adjust the hook plate so that the door lock have the possibility to fit together properly with the door. You must make the setting very carefully because a millimeter offset will be very impactful. You can adjust it from top to bottom or from right to left. When it’s properly adjusted, reattach the screws a little and try again, if the problem is fixed, fix the screws completely.
Door that no longer locks on Citroen C4: Change the cylinder:
You will first have to buy a new barrel with the right dimensions, to do this we advise you to browse the manufacturer's recommendations available on maintenance booklet of your Citroen C4. We will have to start with remove the door trim, as explained above. When you have access to the inside of the lock, you will need to remove the rod from the linkage by unclipping it. Then rotate the barrel seal to free him. Then remove the damaged barrel and replace it with the new one. Small warning when you will test the lock we advise you to use a screwdriver to prevent the door from getting stuck.
Conclusion: a problem door that no longer locks on Citroen C4, can be disturbing because you would risk having your vehicle stolen but also it would risk opening while driving so for your safety do not delay before carrying out the repairs.
In case you want to go a little further in the maintenance of your Citroen C4, you can consult the other pages on the Citroen C4.
