Being subject to recurring noise on your car tends to be frustrating, a car is so complex that it is generally difficult to situate its origin and even more so to find the part that generates it. If you have already experienced a clicking noise on your Mercedes Classe Cls, we will almost certainly be able to support you. Indeed, our editorial staff decided to create this content page in order to review the main causes of a clicking noise on Mercedes Classe Cls. This is why, firstly, we will check out what are the origins 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 Mercedes Classe Cls coming from your suspensions.
I find out a clicking noise on Mercedes Classe Cls from my engine
Verify your high engine
If you find out a clicking noise on Mercedes Classe Cls, and this noise is based at the top of the engine, it means that it originates from your cylinder head and its associated parts. Two parts can be the triggers of these ticking noises on Mercedes Classe Cls. Either the hydraulic pushers , in most cases it is because of their faulty “hydraulic catch-up” system that we will hear 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 circumstance, remember to change them.
Verify your low engine
If you have distinguished the region of source of the Mercedes Classe Cls clikcing noises coming from your low engine, it may be that your rods or piston shafts are the triggers. In both situations, the risk in the long term is the breakage of the motor. These two fixes are very difficult and most mechanics will advise you to swap the engine of your Mercedes Classe Cls.
Combustion problem
Finally, if you have the feeling that this clicking noise on Mercedes Classe Cls is in connection with the combustion of your engine, there are three possible triggers of it. Verify the state of your glow plugs which, if worn, can hinder the proper combustion of the fuel mixture. Then, it is conceivable that your timing belt is shifted and that it does not properly manage the timing of the various engine parts 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 case, do not hesitate to consult this content page which deals in detail with the different injection sounds on Mercedes Classe Cls.
I find out a clicking noise on Mercedes Classe Cls in my direction
Verify the state of the gimbals
One of the most common causes of a clicking noises in the direction of your Mercedes Classe Cls is related to the direction of the car. 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 generate a ticking type of sound when you get closer to the stop zone of your steering. A bellows with holes will affect the cardan shaft very quickly and must be replaced in a short time, otherwise the entire cardan shaft will have to be replaced. Consider taking a look at it. If you would like more detailed information about gimbals noises on Mercedes Classe Cls, do not hesitate to consult this complete guide.
Verify the rest of your direction
Finally, when you know a clicking noise on your Mercedes Classe Cls, it is conceivable 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 case, 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 find out a clicking noise on Mercedes Classe Cls coming from my suspensions
Verify the suspension
If you experience a clicking noise on your Mercedes Classe Cls once you pass a speed bump, it is extremely conceivable that your suspension block is the cause of the noise. Indeed, it may be the suspension cups, which, when they are outdated, 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 examine if this is the issue that worries you, take a dented road and, at low speed, focus on the noise coming from your front axle when you pass over holes. If these are the cups, consider changing them promptly 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 Mercedes Classe Cls at the suspension level, it is widely conceivable that spring wear or shock cylinder deformation may be a reason. To examine the shape of the spring, place 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 examine between the front and rear, if there is a gap too significant it denotes that most likely your springs are worn, if you observe a leak go a little further in the article to have the solution to this problem. For the cylinder the verification is visual, make sure 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 replacing it or them. If you have the feeling that this noise is more like a squeaking noise on Mercedes Classe Cls than a clicking noise, don’t hesitate to consult this article.
