First warning flag for me, why has the cambelt been changed and not water pump at the same time?
They should be chuffed together.
Mayo you'll notice it when you unscrew the oil cap.
That's a manual gearbox so less to go wrong. Check service history it's been serviced.
What is the service history like?
Full, part of non.
Issues with the infotainment system are documented.
The dial like on a BMW does control the infotainment system.