Td5 series 2 disco

I have a td5 series 2
It keeps leaking exhaust gas around the manifold , had the gasket and studs replaced twice , this will be the 3 rd time in 12,000 kms
Any one else have this problem ?

I do hope you're not still waiting for an answer to your question Barboot? :-)) Of course you've probably found that the best place for this sort of thing is aulro.com as they will give answers warts and all about everything LR.
Alan.