My 2014 diesel Tiguan was serviced yesterday by a main dealer and there were no problems, except for a comment on the mechanics bill of health to the effect that there was evidence of an oil leak between the engine and gearbox. Being wary of "work creation" schemes by garages I don't want to phone them to ask what this means, the work they would suggest to repair it and the undoubtably humongous cost involved without knowing in advance a bit about what they are implying. Does anyone on here know what the "evidence of a leak" might be? The car has only done 27,000 miles and doesn't use oil or leave drips on the drive. Many thanks!