Water overheating on a year 2000 seat toledo 1.9tdi se, is the water pump easy to replace??

When the waterpump goes it useualy makes noise and leaks.Check your antifreeze level.Low levels will also cause overheating.Bad thermostat can also be an issue.Another way to check your waterpump is to see if you have circulation running the engine with the radiator cap off.Rev engine and look down the radiator cap to see if antifreeze is moving.Start the engine with the cap off so presure does't build up.Do this for a short time only or you'll boil over.Keep the heater set to hot to allow heatercore to fill(part of your capacity) of antifreeze.Changing a water pump is not that hard it's a couple of bolts,a gasket, no spescial tools,The belts off and then on are a pain.Before doing the waterpump investigate all of the other factors,Fluid,Thermostat,radiator flush,
and ......
unfortunately Head Gasket Test.Good Luck

Water pumps are not normally what causes overheating, in fact that would be my last item to change. The only way that a water pump fill cause overheating is if the impeller has come off the shaft or completely worn down. I would first start with the thermostat. If this dosn't fix it, then I would be looking at the condition of the radiator I.E. is it plugged, are the fins up front full of bugs and debris ect. Then I would also check the cooling fan operation, does it come on when engine is hot? also does it come on with the A.C. operation-it should. Then last of all the water pump- and no its not easy on this one, due to lack of clearance.