This has the sound and feel of the EGR issue a few years ago.
Skoda and the rest of VAG were inundated with complaints about failing valves.
I had sold my 3 year old 12 plate Yeti to a friend. Within months it had gone into limp mode, requiring a replacement valve.
Which required a major dismantling of the engine to replace.
Skoda UK picked up the bill, as a ‘goodwill’ gesture.
Shortly after my daughter purchased a 3 year old Tiguan from a VW dealer.
Over the next 5 months she had no less that 3 EGR’s replaced, eventually rejecting the car, which was replaced with a new petrol Tiguan on the same finance deal as her 3 year old one.
It would seem that door locks on 3 year old cars are becoming another Achilles heel.
I’m guessing the locks are common across VAG, so there must be similar issues, which may account for the lack of replacements.