It is never enjoyable to discover a sound on your automobile that you don’t know where it comes from. You may be questioning what to do when you identify a reversing gear noise that remains on your Mercedes Benz CLA Class? Any gearbox problem can be critical, but before making sure, it is better to do a few investigations. Our team has created this content page to help you deal with it. First, we will see what the origins and the different gearbox noises can be on Mercedes Benz CLA Class, and second, what are the solutions available to you.
Classical reverse Mercedes Benz CLA Class noises and some tips to maintain your gearbox
Why does the reversing of my Mercedes Benz CLA Class make a different noise from my other speeds?
De facto, adding all gears, bearings and pinions into a gearbox is a difficult process. The noise created by the reversing of your Mercedes Benz CLA Class is logical. It can be explained in a fairly simple way. Indeed, 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 employed for the reverse gear.
Tips to limit 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 automobile in the revs, you risk to burn your clutch or gnawing at the gearbox pinions. - Never reverse while the automobile is in motion or vice versa:
Reversing the direction of operation of the gearbox during operation is a very bad plan. Indeed, the pressure you will put in on the gears will be enormous and you will generate 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 normal if you perceive a reverse noise on your Mercedes Benz CLA Class if you shift gear under these conditions.
Several Mercedes Benz CLA Class reversing noises and their triggers
Finally in this section, we will move on to what you are probably most enthusiastic about in this article, to learn about the cause of reversing noise on Mercedes Benz CLA Class. Here are the 3 typical sounds you may be victim of.
I notice a grinding noise when starting in reverse gear
If you discover a grinding noise when you start in reverse with your Mercedes Benz CLA Class, 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 generated 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 consult this article for more details about strut mount noises on Mercedes Benz CLA Class.
An increased reverse knocking noise on Mercedes Benz CLA ClassX
If you are subject to a knocking noise when you are in reverse with your Mercedes Benz CLA Class and this noise tends to increase as you gain speed. It is plausible that you are going through a serious problem that needs to be solved rather quickly before ruining your entire gearbox. Indeed, 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 automobile to your auto technician quickly or check out this article about gearbox noise on Mercedes Benz CLA Class for more information.
I notice a noise when I go in reverse
Listening 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 Mercedes Benz CLA Class 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.
