It is never pleasurable to perceive a sound on your vehicle that you don’t know where it comes from. You may be thinking what to do when you notice a reversing gear noise that remains on your Bmw Serie 3 F30? Any gearbox problem can be severe, but before making sure, it is better to do a few inspections. Our team has made this paper to support you solve it. First, we will see what the sources and the different gearbox noises can be on Bmw Serie 3 F30, and second, what are the solutions available to you.
Classical reverse Bmw Serie 3 F30 noises and some tips to protect your gearbox
Why does the reversing of my Bmw Serie 3 F30 make a different noise from my other speeds?
De facto, integrating all gears, bearings and pinions into a gearbox is a difficult exercise. The noise generated by the reversing of your Bmw Serie 3 F30 is logical. It can be explained in a fairly simple way. In fact, the gears used for conventional speeds (1st to 5th or 6th) are so-called “helical” gears (oblique gears) . The use of such a pinion makes the noise caused by the gears more quiet than with spur gears used for the reverse gear.
Tips to reduce wear on your clutch and gearbox
- Don’t give a big boost:
Certainly, if you kick the throttle hard when you are in reverse or when you put the vehicle in the revs, you risk to burn your clutch or gnawing at the gearbox pinions. - Never reverse while the vehicle is in motion or vice versa:
Reversing the direction of operation of the gearbox during operation is a very bad idea. In fact, the pressure you will apply on the gears will be significant and you will develop a premature wear and tear of the gears. You can even break the gears of your gearbox at speed by doing so. It will therefore be completely normal if you find out a reverse noise on your Bmw Serie 3 F30 if you shift gear under these conditions.
Several Bmw Serie 3 F30 reversing noises and their origins
Finally in this section, we will move on to what you are probably most interested in this article, to find out about the cause of reversing noise on Bmw Serie 3 F30. Here are the 3 typical noises you may be victim of.
I acknowledge a grinding noise when starting in reverse gear
If you perceive a grinding noise when you start in reverse with your Bmw Serie 3 F30, it may be the engine mounts that are tired. In fact, when the engine is in reverse gear, due to the pinions we saw above the vibrations made by the gearbox are higher and it is therefore plausible that due to their wear the silentblocks no longer absorb the engine vibrations well. In this case, do not hesitate to consult this content for more info about strut mount noises on Bmw Serie 3 F30.
An increased reverse knocking noise on Bmw Serie 3 F30X
If you are subject to a knocking noise when you are in reverse with your Bmw Serie 3 F30 and this noise tends to build up as you gain speed. It is plausible that you are experiencing a serious problem that needs to be fixed quickly before ruining your entire gearbox. In fact, an intensifying rattling noise means that the gears are damaged. If they are, debris will spread to the rest of the box and damage other gears very fast. Take your vehicle to your repair shop quickly or read this content about gearbox noise on Bmw Serie 3 F30 for more information.
I discover a noise when I go in reverse
Experiencing a noise when you shift into reverse is normal and linked to the gears and sprockets used in the gearbox. If, on the other hand, you have the feeling that your Bmw Serie 3 F30 reverse gear makes more noise than before, it is plausible that filings have been created and are moving around in it. It is therefore time to empty the box.
