Knocking.renault scenic.on left and sometimes right lock under power?

Probably not track rods , more likely it will be the ball joint at the bottom of the suspension, about £20.00 each ex vat , fitting is a garage job £50.00 ex vat.

Not the CV joints as you say they have replaced the drive shafts.

Colin
September 2010

probably trackrod ends put wheel on full lock and grasp steering arm where it connects to the hub give a right good heave twisting at the same time if you can feel any play thats likely to be the problem

ant
December 2008