When you observe unusual noises on your Bmw Serie 3 E90 you tend to stress. Especially when you experience a noise coming from the release bearing of your Bmw Serie 3 E90. It is immediately assimilated to an engine trouble and can therefore be serious. As we know that you do not take these trouble lightly, we have decided to create this content page to help you locate the causes and free yourself from this matter as quickly as possible. To do this, we will first concentrate on the purpose 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 Bmw Serie 3 E90 and their sources.
What is the purpose and operation of the release bearing on Bmw Serie 3 E90?
Task of the release bearing on Bmw Serie 3 E90
The release bearing of your Bmw Serie 3 E90 has a fundamental purpose in the operation of your entire gearbox system. Indeed, 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 operated 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 Bmw Serie 3 E90.
Objective of release bearing Bmw Serie 3 E90
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 (according to 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 types of release bearing Bmw Serie 3 E90 :
- Pulled release bearing
- Hydraulic release bearing
It is the most unconventional of the two types of release bearing . This one, as opposed to the hydraulic form, is operated by a mechanical pulling system that will release the clutch disc. In this situation, the release bearing must be mechanically fixed to the mechanism.
The hydraulic release bearing, although more complex, is the kind most used in modern vehicles. It is however more complex than the pulled release bearing. Indeed, it will be composed of a hydraulic tube that will receive the pressure directly from the clutch pedal.
More conventional clutch stop
Release bearing noises Bmw Serie 3 E90 and their sources
I experience a release bearing noise on Bmw Serie 3 E90 when I drive and it stops when I depress my clutch pedal
If you experience 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 conceivable that your release bearing is the reason. Make sure that this noise stops when you disengage, in which circumstance it is time to swap the release bearing of your Bmw Serie 3 E90.
I experience a release bearing noise when my pedal is up and I experience jolts in my foot
If you experience too much or too little resistance when you press your clutch pedal, and it is linked with jolts that you can experience in your clutch pedal, then the stop/fork release/blades grouping is damaged. Indeed, this noise often comes from the broken fork that no longer allows the device to operate normally.
I experience a grinding noise coming from the release bearing of my Bmw Serie 3 E90 when I try to shift gears and they do not shift
This matter happens most often on models equipped with hydraulic release bearing. It is often connected to a clutch pedal that has little or no resistance. If you are in this situation and you feel a grinding or cracking noise coming from the release bearing of your Bmw Serie 3 E90, then you probably have a leak coming from your release bearing. It must therefore be replaced as soon as possible or risk damaging your gearbox in addition to the clutch. If you have a noise coming from the gearbox of your Bmw Serie 3 E90 and it’s not from your release bearing, check this article to have more informations.
