Having a front wiper malfunction is not uncommon. It is even one of the most common malfunctions, and not only on the Citroen Sm. Windshield wipers have in fact become consumables, because they deteriorate easily and are easy to change . But the malfunctions can be quite different, and the reasons will vary. It can come from broom , engine , or a electrical malfunction especially. We will therefore see the most common symptoms, and how to alleviate them.
Complete failure of the front wiper of your Citroen Sm
The malfunction is undoubtedly the engine of your front wiper. If you ever want to be sure, you need to measure the electrical current on the wiper motor. But it is a precaution which is not really essential. The fault is probably due to the engine. In this case, you will need to obtain a new engine, compatible with your Citroen Sm . It is nevertheless possible that the malfunction comes from broom training . In this case, activate it manually. If the latter can move on its pivot perfectly, it is because it does not show any malfunction.
The front wiper of your Citroen Sm is noisy
A noisy front wiper on a Citroen Sm is not a major malfunction, but it is no doubt quickly annoying. If you hear a shrill noise is that it must come from the wear of the rubber blade of the broom. As if you were running it on your dry windshield. In this case, you should definitely change it. If ever it's a squeaky noise , it is certainly the training which is slightly seized. In this case, it is enough to oil it, and the malfunction will be resolved.
Citroen Sm's front wipers don't go at the right speed
This time it's a malfunction that can be problematic, especially during torrential rain and the front wipers are particularly slow. For comparison, at maximum speed, the speed is approximately one round trip per second. If they are indeed slower, the causes could be multiple. But there is a strong probability that it is the engine which is in question. You can always remove components to discern what is holding back the process. Be careful not to scratch your windshield. It is also likely that the state of wear of the brush slows down the operation. In this case, just change the brushes .