There are several possible reasons for noises in manual transmission. These include:

1. The sounds appearing in used car. If strange sounds in manual transmission are still present when depressing clutch with operating engine at neutral gear, it means that you need to replace the clutch release bearing. In case if the strange sounds became less evident, it may indicate the wear of the operating surfaces of gears and bearings. If you experience such problems, then it is advised to apply our Revitalizant which will help you to restore worn surfaces and reduce noises in gearbox.
2. The sounds appearing in a new car. It is worth to be noted that some gearboxes make noise from the very beginning of their operation. Sometimes this noise disappear with time when the transmission parts wear in. If the noise doesn’t go away it may indicate the gears’ tooth changeover due to improper manufacturing of tooth gears or valves. If the tooth is engaged too tightly, it deforms and makes noise. It is advised to use our Revitalizant in order to eliminate noise in gearbox, in case if the tooth changeover rate is not too high.