Timing belt?

Vw claims its suposed to be changed every 130k mls or 5 to 7 years regardless ..a bit strange but they claim its an unusually stronger belt than the usual type i guess also diesles are generally driven at lower rpms so it supposedly wears out slower ..
anyway hope this helps good luck

When would you recommend to change the timing belt?

Well let's see looks like you put about 42k on it so far since the belt was changed so next year 2027 will be 5 years since right? And it should be rolling up on 50 k mls since the change Id say start thinking about it then you have about 2 years to do it.. past that point .yeah" so id start thinking about it when you hit 50 k 5yrs..and youl still have plenty of time just to be safe hope this helps

And jist a side note " ..
Its a bit strange the way they gyage the time limits to the wear intervals
..because on most cars it varies but its usually about 7 to 9 yrs or so ...but vw says there's is shorter but the miles are longer so its a bit confusing..if youre unsure you can call a vw dealer and ask the lead mechanic or shop manager they'd know best im sure ...good luck hope this helps