How do I diagnose a faulty transmission on my Vauxhall Movano?

I've been experiencing problems with my Vauxhall Movano's transmission, such as slipping gears and uneven shifting. I'm not sure what the cause could be and how to fix it. Any advice?

First, check the transmission fluid level and condition. Low levels or dirty fluid can cause transmission issues. If that's not the issue, it could be a faulty solenoid or sensor. If you're not comfortable doing this yourself, it's best to visit a trusted mechanic for a proper diagnostic.

Another possible cause could be a worn out clutch or damaged gears in the transmission. You may need to have these components replaced, which can be a more complex and expensive repair. It's best to have a professional assess the issue to determine the best course of action.

In some cases, transmission issues can also be caused by a malfunctioning computer or control module. This requires specialized equipment to diagnose and repair, so it's best to take your vehicle to a certified mechanic.