See your manual and/or the luggage compartment for a sticker like this for
the transmission code. It'll help you finding a used transmission:
On this example 'AXR' is the engine code and 'EUH' is the transmission code.
It specifies the exact transmission of your Jetta. I still bet it's a MQ250 which
is the transmission family (built for up to 250 Nm of torque input), while the
transmission code specifies more than that - including the gearing which is
different for every specific engine and car. This TDI also uses a MQ250 as it's
240 Nm, but it requires taller gearing compared to your 2.5 since it's a Diesel.
So it uses a different transmission code.
Some vendors also sell rebuild kits, at least in Europe as it's a very popular
transmission, they made millions of them. I'd bet Schaeffler/INA, Timken and
SKF make bearings for them.
.