Hi all, newbie from across the North Sea here.

The left side tailgate motor crapped out and after a long while I finally replaced it. Went for one from NTY as the price difference from original part was huge.

It works, but after closing the lid it makes a loud vrrrrrrr sound for a few seconds. The original one did this aswell for a while back when it worked, but it was not nearly as loud so I didn't bother much with it.

Does anyone know what can cause this and if there is a way to fix it?

Sounds like it's either the wrong size and when closed it is still trying to close, it's not getting a closed signal so it is still trying to close and grinding the gears or it needs some sort of homing to establish it's open and closed position.

Still trying to close sounds right, but like I said the strange thing is the original one behaved this way aswell. Is there maybe some sort of start/stop point that needs to be programmed? Or maybe some faulty switch in the lid that doesn't send a closed signal?

Are you sure it is the tail gate motor? Such sound after the lid closes is typically caused by the tightening motor, the counterpart of the lock. It has at least one plastic gear where some of the teeths break, causing gear skipping and the noise. Eventually it might not be able to properly tighten the boot lid.

Can be checked ie. by closing the lock with a screwdriver or by operating the tightener with vcds.