The gearbox oil on your Ford Mondeo is also known as the transmission fluid. This fluid lubricates the transmission gears, so that they do not overheat during normal operation.
Transmission gears are very sensitive, and if they are not properly lubricated, they will grind against each other, causing your Mondeo’s transmission will fail.
Most transmission problems can be prevented by making sure that the lubricating oil is at the proper level. The first step in this maintenance procedure is to check the gearbox oil.
Start your Mondeo’s engine and allow it to run for one minute.