[boschmann]

We didn't get Polo's here in North America, but I may be able to help some. If the fuel pump is drawing too many Amps it could be the problem, have yopu heard any whining noise from it? Also, the relay may be overheating, locate it & feel if it'ss hot next time it blows a fuse. Otherwise it might be a wiring problem, which can be difficult to find.