Can anyone help me. Just noticed knocking from nearside rear of my S when either light or no throttle. When accelerating medium or full throttle there is no knocking. Just checking under the car nothing seems to be loose. Handling still seems ok, but did not push too hard on corners on the way home, just in case. Anyone got any ideas what it could be?

 

Could be your wheel bearing(s) going. Could be a loose axle nut.

 

do the axle nut re tq if you havent done it. also check your subframe bolts. they have been known to come loose.