It is never pleasant to find out a sound on your car that you don’t know where it comes from. You may be wanting to know what to do when you find a reversing gear noise that remains on your BMW 2 Series? Any gearbox issue can be critical, but before making sure, it is better to do a few investigations. Our team has created this paper to help you solve it. First, we will see what the sources and the different gearbox noises can be on BMW 2 Series, and second, what are the solutions available to you.
Classical reverse BMW 2 Series noises and some tips to protect your gearbox
Why does the reversing of my BMW 2 Series make a different noise from my other speeds?
De facto, integrating all gears, bearings and pinions into a gearbox is a difficult task. The noise caused by the reversing of your BMW 2 Series 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 less important 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 car in the revs, you risk to burn your clutch or gnawing at the gearbox pinions. - Never reverse while the car 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 put in on the gears will be significant and you will develop a premature wear and tear of the gears. You can even destroy the gears of your gearbox at speed by doing so. It will therefore be completely typical if you perceive a reverse noise on your BMW 2 Series if you shift gear under these conditions.
Several BMW 2 Series reversing noises and their origins
Finally in this section, we will move on to what you are probably most interested in this page, to learn about the source of reversing noise on BMW 2 Series. Here are the 3 typical sounds you may be victim of.
I acknowledge a grinding noise when starting in reverse gear
If you find out a grinding noise when you start in reverse with your BMW 2 Series, 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 circumstance, do not hesitate to check out this content for more info about strut mount noises on BMW 2 Series.
An increased reverse knocking noise on BMW 2 SeriesX
If you are subject to a knocking noise when you are in reverse with your BMW 2 Series and this noise tends to amplify as you gain speed. It is plausible that you are confronting a serious issue that needs to be fixed very fast before wrecking your entire gearbox. In fact, an intensifying rattling noise means that the gears are damaged. If they are, debris will propagate to the rest of the box and damage other gears in short order. Take your car to your repair shop quickly or check out this content page about gearbox noise on BMW 2 Series for more data.
I discover a noise when I go in reverse
Finding out a noise when you shift into reverse is normal and relating to the gears and sprockets used in the gearbox. If, on the other hand, you have the feeling that your BMW 2 Series 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.
