Russats

I have a Seat Alhambra 1.9 TDi 2000 (MK2) It leaks oil from the offside of the intercooler, I don't think it's from the pipe joint although I'm not sure. It only leaves a small oil patch on the ground after you stop so I assume it only leaks while it's running. I've had other people tell me it's a Turbo Fault Any ideas?

Hi, I have an X plate 1.9PD TDi Sear Alhambra, there is an oil leak which appears to be coming from the offside of the intercooler, it leaves a small oil patch on the ground after the car has been used. It doesn't appear to be leaking with the engine off. Any ideas? I took off the lower pipe but there is no oil in that pipe. Thanks