Hi guys, I've just purchased my Audi A3 (2001) with a AUM engine. It has 76k on the clock & no record of it being done so i'd like to play it safe and get it done early. The garage I spoke to this morning recommended the water pump be changed at the same time too as changing one without the other can cause issues. Is there any truth in this? & is £450 a good price for this work?