I have a feeling I may have worked out what is causing the above but I just wanted to check with the collective knowledge of all on here. My AMK S3 has just started to make a whining noise when exiting my driveway, pulling out of junctions, slow speed turns and slow speed deceleration when approaching traffic lights or slow manoeuvring.
I have spent the last couple of hours searching through old threads and it seems it could be one of two things - auxiliary belt tensioner or power steering pump. As yet, I have not had the chance to check the power steering fluid level but I have recently noticed the the engine under tray and also the large pipe that runs under the radiator ( I think it;s the charge pipe between the intercoolers) both have an oily stain on them that was not there previously.
Can anyone please confirm if there is something around that area that is to do with the power steering that could potentially be leaking? I don't appear to be leaving any oily drips or puddles on the driveway so it must be containing any leak -if it has one - within the engine bay for now.
Also, if it is power steering related either fluid or pump is it a fairly straight forward system for the home mechanic to make repairs/replace components or should I book it in to a garage?
Any help/info on components would be gratefully received as always.