Looking for a bit of advice regards the turbo on a V220CDI, I came down the motorway last night, and have proceeded to gain a whistling sound. Having read the threads, I have reconnected the pipe (under the middle wiper), and this appears to have resolved the problem. But having looked where I presume the turbo to be (passenger side of engine, following the hard piping down and to the back of the engine) there is a load of oil there. Has anyone replaced the oil feeds to the turbo, and is it a complete arse?