VW Jetta has 105,000, was told that need to replace the waterpump, is this valid on 2003 Volkswagen Jetta TDI

Does the timing belt need to be replaced as well?

Asked by for the 2003 Volkswagen Jetta TDI
at 105k the timing belt and the water pump are do to be serviced. the timing belt turns the water pump so you would not change one without the other.
Thanks for the reply.