My cars just started doing this today. When rolling with no acceleration (in gear) the steering wheel is dead central, but the slightest press of the accelerator the wheel judders clockwise, id say around 10mm. when I keep the foot on the peddle the wheel stays in the position as if the tracking out then back central when i let off. Every time it does this the car judders a little and the steering feels light. Its more noticeable at higher speeds litteraly the slightest press of the peddle does this. It's hard to explain but I'm hoping someone knows what I'm on about. Cheers
First thing to do is have the physical steering and suspension components checked for movement and if you're unable to do this yourself you will need a garage to do it for you... try and find a trustworthy one, they do exist! Then, if that's all good it may be a fault in the ePAS which is unfortunately, due to the equipment required, going to be beyond the scope of a DIY home fix.
Just had this sorted. It was just a loose bolt on the bottom arm, the bolt furthest away from the wheel. Happy days
