Being subject to frequent noise on your vehicle tends to be annoying, a vehicle is so complex that it is usually difficult to locate its origin and even more so to find the part that produces it. If you have already experienced a clicking noise on your Mercedes Benz GLS Class, we will most likely be able to help you. In fact, our editorial staff decided to write this content page in order to review the main causes of a clicking noise on Mercedes Benz GLS Class. This is why, firstly, we will check out what are the causes of this type of noise coming from your engine block, then those of a noise coming from your direction and finally, the origins of clicking noise on Mercedes Benz GLS Class coming from your suspensions.clicking-noise-mercedes-benz-gls-class

I notice a clicking noise on Mercedes Benz GLS Class located on my engine

Examine your high engine

If you notice a clicking noise on Mercedes Benz GLS Class, and this sound is located at the top of the engine, it means that it originates from your cylinder head and its accompanying parts. Two elements can be the triggers of these ticking noises on Mercedes Benz GLS Class. Either the hydraulic pushers , generally it is because of their faulty “hydraulic catch-up” system that we will hear these clicking noises, often when cold and go away when hot. Otherwise, it is the interplay of your rocker arms or their state of wear that is at issue. In this circumstance, remember to change them.

Examine your low engine

If you have founded the spot of origin of the Mercedes Benz GLS Class clikcing noises coming from your low engine, it may be that your rods or piston shafts are the triggers. In both circumstances, the risk in the long term is the breakage of the motor. These two repairs are very difficult and most mechanics will encourage you to replace the engine of your Mercedes Benz GLS Class.

Combustion problem

Finally, if you have the feeling that this clicking noise on Mercedes Benz GLS Class is related to the combustion of your engine, there are three possible origins of it. Examine the condition of your glow plugs which, if worn, can hinder the proper combustion of the fuel mixture. Then, it is possible 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 reason, comes from your injection, which is either blocked or one or more injectors are destroyed. In this case, do not hesitate to consult this content page which deals in detail with the different injection sounds on Mercedes Benz GLS Class.

I notice a clicking noise on Mercedes Benz GLS Class in my direction

Examine the condition of the gimbals

One of the most common causes of a clicking noises in the direction of your Mercedes Benz GLS Class is connected 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 create 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 in a short time, 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 Mercedes Benz GLS Class, do not hesitate to consult this complete guide.

Examine the rest of your direction

Finally, when you know a clicking noise on your Mercedes Benz GLS Class, it is possible 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 notice a clicking noise on Mercedes Benz GLS Class coming from my suspensions

Examine the suspension

If you encounter a clicking noise on your Mercedes Benz GLS Class once you pass a speed bump, it is extremely possible that your suspension block is the cause of the sound. 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 sound coming from your front axle when ever you pass over holes. If these are the cups, consider changing them soon as this may damage other parts and require more expensive repairs.

Check spring and cylinder

If you notice a clicking noise on your Mercedes Benz GLS Class at the suspension level, it is highly possible 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 similar on each side (empty car for measurement). You can also verify between the front and rear, if there is a gap too large it means that most likely your springs are worn, if you discover a leak go a little further in the article to have the solution to this problem. For the cylinder the verification is visual, be 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 think about swapping it or them. If you have the feeling that this noise is more like a squeaking noise on Mercedes Benz GLS Class than a clicking noise, don’t hesitate to consult this article.