When you notice unusual noises on your Bmw Serie 4 F33 you tend to get worried. Especially when you feel a noise coming from the release bearing of your Bmw Serie 4 F33. It is instantly assimilated to an engine issue and can therefore be serious. As we know that you do not take these concerns lightly, we have decided to write this article to support you find the triggers and free yourself from this concern 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 Bmw Serie 4 F33 and their sources.release-bearing-noise-bmw-serie-4-f33

What is the role and operation of the release bearing on Bmw Serie 4 F33?

Role of the release bearing on Bmw Serie 4 F33

The release bearing of your Bmw Serie 4 F33 has a major role in the operation of your entire gearbox system. In fact, its task 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 Bmw Serie 4 F33.

Action of release bearing Bmw Serie 4 F33

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 (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 distinct kind of release bearing Bmw Serie 4 F33 :

  • Pulled release bearing
  • It is the most unconventional of the two kind of release bearing . This one, contrary to the hydraulic type, 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.

  • Hydraulic release bearing
  • The hydraulic release bearing, although more complex, is the version most used in contemporary vehicles. It is however more sophisticated 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 Bmw Serie 4 F33 and their sources

I feel a release bearing noise on Bmw Serie 4 F33 when I drive and it stops when I depress my clutch pedal

If you feel 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 reason. Make sure that this noise stops when you disengage, in which case it is time to change the release bearing of your Bmw Serie 4 F33.

I feel a release bearing noise when my pedal is up and I feel jolts in my foot

If you feel too much or too little resistance when you press your clutch pedal, and it is associated with jolts that you can feel 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 run normally.

I feel a grinding noise coming from the release bearing of my Bmw Serie 4 F33 when I try to shift gears and they do not shift

This concern 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 circumstance and you feel a grinding or cracking noise coming from the release bearing of your Bmw Serie 4 F33, then you probably have a leak coming from your release bearing. It must therefore be changed almost instantly or risk damaging your gearbox in addition to the clutch. If you have a noise coming from the gearbox of your Bmw Serie 4 F33 and it’s not from your release bearing, check this article to have more informations.