is 05 new Jetta 2.5L using a timing belt or timing chain

[stunme]

as title

i am about buy a used 05 New Jetta 5Cyl 2.5L, but the owner have no idea about when did he change the timing belt or whether it is a timing chain

Thanks

[Allsho Nogo]

I have an 06 2.5 and it has a timing chain..i just had replaced not to long ago

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