Hi Andy, your Toledo does indeed have the same engine as the
MK1 Leon and you’re normally better off asking for advice in the Leon section. Since more people visit that area these days.
When you say a pipe from the intercooler. I’m guessing you’re talking about the charged/boost air pipes. They’re large diameter hard plastic items. TDIs don’t really have throttle bodies, most likely if it’s the pipe that goes between the timing belt cover and power steering header tank. Then it’s the EGR valve that the pipe is connected to.
You may be able to find one in a breakers, that engine was used by Seat, VW, Audi and Skoda so a pipe from any of those would do. There were around 6 different versions of 1.9 TDI around in 2003. Audi & VW stopped using the 110ps around 2001. Seat & Skoda used it until around 2005 but they also used the newer VW 1.9 TDI from 2003. You’ll need to make sure you get the right version of the pipe.