Hi, i own a 01 a3 tdi 110bhp.

ive noticed recently it doesnt seem to have the power it should, it seems to really struggle up hills, wich i expected a powerful diesel to have no troble with at all.

can anyone give me any help at all? it would be greatly appreciated

Probably the MAF sensor is shot.

Have the codes read and post them.

Even better. Once hooked up, check MVB 3.