Jaguar XF massive water leak

[Mackamick]

I own and drive (or did) a 2010 (59) plate Jaguar XF 3.0l Premium. I had the DPF light come on and followed the Jaguar handbook to re-gen the DPF, ie drive for 15-20 mins over 30mph at around 3000rpm. This had no effect, but I developed a low coolant level warning. When I returned home I tried to fill the coolant but it just kept leaking, from closer inspection, none of the front hoses are split, however the leak seems to be coming from between the two heads and the block. Does anyone have or had a similar situation and can you advise please