Changing the ceiling light bulb on a Citroen Sm is a super operation simple to execute . No need to be an excellent mechanic, this repair requires basic tools and no mechanical knowledge. To make this replacement, count about 10 minutes . But before you start repairing, you will have to make sure that the problem comes from the bulb. We will see first how to know where the problem comes from, then how to change the defective bulb.
The ceiling bulb of your Citroen Sm does not work anymore: the different origins.
The bulb is defective . This is of course the most common reason. In all cases, you will have to remove the lighting unit from the Citroen Sm. In order to do this, you will have to follow the steps in the next part. To control it it's super simple. If it is a filament bulb, you can visually check that its filament is broken. If on the other hand it is an LED bulb, it will be necessary to check that the current flows correctly thanks to a voltmeter. Try to take the voltage on the two poles of the connector. An electrical concern . It's less common, however it can still happen on this Citroen Sm. It happens that there is a short-juice, or that a connector is dirty. In this situation, examine the voltage at both ends. If the current does not flow correctly, the wiring must be followed until you understand the cause of the failure. It also happens that the connectors are dirty. In this case, you will have to clean them with a specialized product and measure the voltage.
How to replace the light bulb on your Citroen Sm
Now that you have found the cause of the failure, you are sure that the problem comes from the bulb. We will see how to change the bulb of the ceiling light step by step on this Citroen Sm.
- Remove the ceiling lamp using a flat screwdriver. Introduce it into the groove to make a lever.
- Remove the connector
- Dismount the ceiling light so as to access the bulb
- Remove the bulb and compare it with the new one. Naturally, the dimensions and the base must correspond
- Place the new bulb gently
- Replace the connectors and the dome following the reverse procedure
You can now turn on the ignition and check that the bulb is working properly. And now, voila ! The ceiling bulb of your Citroen Sm will work normally. Good road.