I have a mk4 1.9 tdi my self, tbh not cracking at all up hill or even on flat roads. What do you expect. They very under powered I guess. Mine is 90bhp lol.
No your wrong then you have the same problem that I do.
I don`t believe they would release it like that.
Lol, a peugeot 306 HDI has 90 BHP, but it has more poke than a mk4 1.9 tdi 90 bhp model.
Its the basic range of turbo diesel engine vw did, but it is more reliable than the other tdi engines.
When i bought mine, it had a new turbo fitted at 138,000, its done 154,000 now, with full VW History, 1 owner car too. so i personally dont think they can be anything wrong with it.