Being subject to repeated noise on your vehicle tends to be annoying, a vehicle is so sophisticated that it is usually difficult to determine its origin and even more so to find the part that causes it. If you have already experienced a clicking noise on your smart forfour, we will most likely be able to support you. In fact, our editorial staff decided to compose this article in order to review the main causes of a clicking noise on smart forfour. This is why, firstly, we will see what are the reasons of this type of noise coming from your engine block, then those of a noise coming from your direction and finally, the sources of clicking noise on smart forfour coming from your suspensions.
I listen to a clicking noise on smart forfour located on my engine
Examine your high engine
If you listen to a clicking noise on smart forfour, and this noise is based at the top of the engine, it means that it originates from your cylinder head and its accompanying parts. Two elements can be the causes of these ticking noises on smart forfour. Either the hydraulic pushers , generally it is because of their faulty “hydraulic catch-up” system that we will find out these clicking noises, generally when cold and go away when hot. Otherwise, it is the interplay of your rocker arms or their condition of wear that is at issue. In this case, remember to change them.
Examine your low engine
If you have founded the area of origin of the smart forfour clikcing noises coming from your low engine, it may be that your rods or piston shafts are the causes. In both situations, the risk in the long term is the breakage of the motor. These two fixes are very complex and most mechanics will encourage you to change the engine of your smart forfour.
Combustion problem
Finally, if you have the feeling that this clicking noise on smart forfour is related to the combustion of your engine, there are three possible causes of it. Examine the state of your glow plugs which, if worn, can hinder the proper combustion of the fuel mixture. Then, it is plausible that your timing belt is shifted and that it does not properly manage the timing of the various engine elements to promote good combustion. And finally, the most classic cause, comes from your injection, which is either blocked or one or more injectors are damaged. In this circumstance, do not hesitate to consult this article which deals in detail with the different injection sounds on smart forfour.
I listen to a clicking noise on smart forfour in my direction
Examine the state of the gimbals
One of the most basic triggers of a clicking noises in the direction of your smart forfour is linked to the direction of the vehicle. Indeed, the cardans and their bellows are parts that are constantly stressed during your changes of direction or that you turn your wheels and a wear of one of them can make a ticking type of sound when you get closer to the stop zone of your steering. A bellows with holes will harm the cardan shaft very quickly and must be swapped very quickly, otherwise the entire cardan shaft will have to be swapped. Consider taking a look at it. If you would like more detailed information about gimbals noises on smart forfour, do not hesitate to read this complete guide.
Examine the rest of your direction
Finally, when you find out a clicking noise on your smart forfour, it is plausible that it is the direction that is involved. Just like the gimbals, the steering part is mobilized when you turn your wheels. If this is the circumstance, the parts that may have been damaged due to normal wear and tear or impact (e. g. sidewalks) are steering rods, stabilizer bar silentblocks or steering triangles.
I listen to a clicking noise on smart forfour coming from my suspensions
Examine the suspension
If you encounter a clicking noise on your smart forfour once you pass a speed bump, it is very plausible that your suspension block is the induce of the noise. In fact, it may be the suspension cups, which, when they are dead, have the rubber (silentbloc) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function and during small jolts that compress the suspensions. To verify if this is the problem that concerns you, take a dented road and, at low speed, pay attention to the noise coming from your front axle when ever you pass over holes. If these are the cups, consider changing them soon as this may affect other parts and require more expensive repairs.
Check spring and cylinder
If you are subject to a clicking noise on your smart forfour at the suspension level, it is highly plausible that spring wear or shock cylinder deformation may be a reason. To verify the state of the spring, position the vehicle on a flat surface and measure that the heights from the ground to the bottom of the body are identical on each side (empty car for measurement). You can also verify between the front and rear, if there is a gap too large it suggests that that most likely your springs are worn, if you discover a leak go a little further in the article to have the answer to this problem. For the cylinder the verification is visual, ensure that it seems to work in a straight axis. And that there is no angle that would alter its proper functioning. If one of them breaks in both situations, you should consider swapping it or them. If you have the feeling that this noise is more like a squeaking noise on smart forfour than a clicking noise, don’t hesitate to consult this article.
