It is never pleasurable to find out a sound that you don’t know where it originates from. So, what if you detect a gearbox noise that persists on your Bmw Serie 3 E90? It is most likely to be a small issues, but before making sure of that, it is best to do a few checks. Our team has composed this content page to support you to correct it. First, we will see what the sources and different gearbox noises can be on Bmw Serie 3 E90, and second, what are the solutions available to you. 
The distinct noises and their origins
A gearbox / your transmission is the significant component of the transmission, it is linked to the clutch that will release the engine force on the gearbox mechanisms. Experiencing noises from your Bmw Serie 3 E90’s gearbox is never a good signal, its repair is pretty much impossible to accomplish due to the lack of specialized garages and its replacing requires a heavy expense. The gain is that generally its life expectancy after a first noise is actually quite long, which gives you time to plan the repair, but it is important to examine instantly what is your specific issues.
Your Bmw Serie 3 E90 transmission generates noise in neutral
If you feel a gearbox noise even when you are in neutral, it shows that the gearbox’s internal mechanisms are already well worn and that you will have to replace it fairly quickly. In fact, if you are not even with a gear on and it generates sound, the pinions must already be at the end of their life.
You perceive a squeaking, a humming noise at the time of the gear shift
If you are unluckily experiencing squeaks, or humming noises when you change the gears of your Bmw Serie 3 E90, it is unfortunately a good bet that it is your gears that are starting to fatigued. If this sound is not restricted to passing the first gear and keep going when you drive and shift other gears. This is most likely an indication of a gearbox which is nearly good to be change. If you have the feeling after checking that the noise comes from the clutch and not the gearbox, we advise you to browse this document to be able to find the triggers and solutions to a clutch noise on Bmw Serie 3 E90.
You feel a whinning or hummin sound from the gearbox of your Bmw Serie 3 E90
Finally, if you perceive a noise almost like a humming or whinning sound on the transmssion of your Bmw Serie 3 E90, it is very often the case that the gearbox of your Bmw Serie 3 E90 lacks oil. In fact, if it lacks oil, the parts will be exposed and grind agaisnt each other. In addition, each of its contacts will create chips or metal dust that will mix with the oil and produce even greater resistance to mechanisms that are already worn out, a snowball effect will happen if you do not promptly change the oil. In this case the oil should be black and your can can smell burning. Occasionally this kind of noises will be linked to a release bearing on Bmw Serie 3 E90, don’t hesitate to have a look at our document.
The solutions existing if you feel a gearbox noise on your Bmw Serie 3 E90
- Check the gearbox oil of your Bmw Serie 3 E90 via the level gauge and reflect on swapping it if the oil is black
- Use the double clutch to try to make it last till you’re able to swap the gearbox, this will limit the already advanced wear of your gearbox and limit the wear of the pinions.
- Start looking for a second-hand or new gearbox, very few professionals have the capacity to change damaged parts in your own system, they will almost always offer you a standard exchange.
