What is the reason why the clutch cannot be pressed down and the gear cannot be engaged?

[SanEloise]

The reasons why the clutch cannot be pressed down and the gear cannot be engaged are as follows:1. Gear wear: The general reason is probably that the gears in the transmission are damaged during the running-in process. This results in the gears not meshing smoothly with each other. Solution: You can try to listen for any abnormal noise from the transmission when shifting gears. If there is, it's better to get it checked, as frequently struggling to shift gears can cause significant damage to the gears.2. Lack of brake fluid: It is usually due to a severe shortage of brake fluid in the clutch fluid reservoir. When there is no brake fluid left in the clutch fluid reservoir, the clutch will not function. After adding clutch fluid, it is necessary to bleed the air from the system. Another possible situation is a faulty clutch master cylinder. Or, the clutch slave cylinder may be leaking, causing the clutch to fail. Solution: Add brake fluid or replace the clutch master cylinder.