I would like a website that has pictures but any info would be helpful...
you can buy books from any local auto shops like PEP Boys or AUTOZONE.
if you have problem with overheating you have to upgrade your radiator and upgrade your fans too installing an external waterpump you have to install it on your passenger side like many drag cars have
Even if you put the auxiliary water pump on its still going to leak. The water will still circulate through it. All you need to do is buy a gasket and some silicone, spend a total of $50 and fix it.
If its a 2003, you should still have a warranty on the powertrain unless its over 50,000 miles, or so. If indeed the water pump is leaking, you'd be foolish to leave it go; the timing belt can get wet, the belt and jump time and cause engine damage, that would be very expensive!! Save your self a lot of grief later by going ahead and replacing the water pump now; if you feel you're not up to the job, then have someone who knows VW's do it for you. Also replace the timing belt at the same time. An attempts to try and do a temporary measure will be met with an expensive result; a leaking water pump can also suck air into the cooling system and cause a hot spot, which could blow the headgasket, especially on a turbo model VW. Sorry, to tell you this, but its better to fix it now and save money, time, and pain later. I spent 25 years on/off in VW dealership service departments from 1980 till Dec of 2005. A car nut.
