A friend has been offered a 61 plate 2.tdi bluemotion, with dsg, 40k, miles, dont know price yet but does the b7 suffer the same fate as the b6 regarding oil pump balance shaft?

If the dsg has had a regular oil change is it a good buy? Ive read plenty of horror stories regarding vw passats's and the dsg gearbox failing and costing a packet to replace.

Is there anything he should be watching out for?

What are the intervals for getting the dsg serviced? Is there anything he should watch out for driving regarding the dsg?