Altea XL 2 0 TDI 140bhp bkd engine oil leak

[Dwebb84]

Hi can anybody help me out. I have a seat altea XL 2 0 TDI 140bhp bkd engine I have a oil leak but not quite sure where it is leaking from as i have oil on the front of the engine and the side of the engine and on the gearbox and on the bottom of the engine can anybody help me please