When you locate unusual noises on your Mercedes A class you have a tendency to be concerned. Especially when you encounter a noise coming from the release bearing of your Mercedes A class. It is instantly assimilated to an engine problem and can therefore be serious. As we know that you do not take these trouble lightly, we have decided to make this document to support you find the causes and free yourself from this issues as quickly as possible. To do this, we will first focus on the function 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 A class and their sources.
What is the role and operation of the release bearing on Mercedes A class?
Function of the release bearing on Mercedes A class
The release bearing of your Mercedes A class has a essential function 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 A class.
Action of release bearing Mercedes A class
Let’s now look at the technical side, the release bearing is composed of two units, a first fixed part that slides only when the stop is pulled, or pushed (determined by 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 sort of release bearing Mercedes A class :
- Pulled release bearing
- Hydraulic release bearing
It is the most unconventional of the two sort of release bearing . This one, in contrast to the hydraulic type, 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 complicated, is the kind most used in modern vehicles. 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 immediately from the clutch pedal.
More conventional clutch stop
Release bearing noises Mercedes A class and their sources
I encounter a release bearing noise on Mercedes A class when I drive and it stops when I release my clutch pedal
If you encounter a noise from your gearbox, release bearing or clutch itself when your engine is running, but it stops when you press your clutch pedal, this noise often sounds like a bell noise, it is highly conceivable that your release bearing is the cause. Make sure that this noise stops when you disengage, in which case it is time to swap the release bearing of your Mercedes A class.
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 linked 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 operate normally.
I encounter a grinding noise coming from the release bearing of my Mercedes A class when I try to shift gears and they do not shift
This issues shows up most often on models equipped with hydraulic release bearing. It is often associated with 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 A class, then you probably have a leak coming from your release bearing. It must therefore be changed fairly quickly or risk damaging your gearbox in addition to the clutch. If you have a noise coming from the gearbox of your Mercedes A class and it’s not from your release bearing, check this article to have more informations.