When you identify unusual noises on your Mercedes Classe M you usually tend to get worried. Specifically when you encounter a noise coming from the release bearing of your Mercedes Classe M. It is directly assimilated to an engine issue and can therefore be serious. As we know that you do not take these concerns lightly, we have chosen to create this article to help you find the triggers and free yourself from this issues as quickly as possible. To do this, we will first focus on the role and operation of the release bearing of your clutch, and in a second step we will look in detail at the different release bearing noises on Mercedes Classe M and their sources.
What is the task and operation of the release bearing on Mercedes Classe M?
Function of the release bearing on Mercedes Classe M
The release bearing of your Mercedes Classe M has a crucial role in the operation of your entire gearbox system. In fact, its mission is to liberate the gearbox from the rotation of the engine block via its action. This will allow you to shift gears. It is controlled by the clutch pedal and then by the release fork, which, when it is activated, will press on the clutch and release the gearbox from engine rotation for you allow you to shift gears on your Mercedes Classe M.
Action of release bearing Mercedes Classe M
Let’s now look at the technical side, the release bearing is composed of two parts, a first fixed part that slides only when the stop is pulled, or pushed (based on its type) and finally a rotating part that is composed of a bearing that will allow it to stay in contact with the mechanism and follow its rotation.
There are two different kind of release bearing Mercedes Classe M :
- Pulled release bearing
- Hydraulic release bearing
It is the most unconventional of the two kind of release bearing . This one, compared with the hydraulic style, is operated by a mechanical pulling system that will release the clutch disc. In this case, the release bearing must be mechanically fixed to the mechanism.
The hydraulic release bearing, although more technical, is the type most used in modern cars. It is however more complex than the pulled release bearing. In fact, it will be composed of a hydraulic tube that will receive the pressure right from the clutch pedal.
More conventional clutch stop
Release bearing noises Mercedes Classe M and their sources
I encounter a release bearing noise on Mercedes Classe M once I drive and it stops when I depress my clutch pedal
If you encounter a noise from your gearbox, release bearing or clutch itself when your engine is running, but it ends when you press your clutch pedal, this noise often sounds like a bell noise, it is highly plausible that your release bearing is the cause. Make sure that this noise stops when you disengage, in which situation it is time to swap the release bearing of your Mercedes Classe M.
I encounter a release bearing noise when my pedal is up and I encounter jolts in my foot
If you encounter too much or too little resistance when you press your clutch pedal, and it is associated with jolts that you can encounter in your clutch pedal, then the stop/fork release/blades grouping is degraded. In fact, this noise often comes from the broken fork that no longer allows the system to function normally.
I encounter a grinding noise coming from the release bearing of my Mercedes Classe M when I try to shift gears and they do not shift
This issues arises most often on models equipped with hydraulic release bearing. It is often linked to a clutch pedal that has little or no resistance. If you are in this circumstance and you feel a grinding or cracking noise coming from the release bearing of your Mercedes Classe M, then you probably have a leak coming from your release bearing. It must therefore be swapped almost instantly or risk damaging your gearbox in addition to the clutch. If you have a noise coming from the gearbox of your Mercedes Classe M and it’s not from your release bearing, check this article to have more informations.
