SG NO OPTIONS CSL 17950 Miles

nw942 · 12-06-2015, 12:23 AM

I was told that it's usually the rear left subframe mounting point that goes first, so obviously there is extra loading in that corner. If you look at some pictures of the underneath of the car, the main difference between the left and right is the presence of the differential mounting on the left hand side. So one possible cause is that maybe the differential bushing starts failing first, which leads to extra play and then knock on stresses to the rear left subframe bushes/mounting.

Obviously more aggressive driving and more violent gearchanges will affect the bushing, and I also suspect it will be exacerbated as the bushing deteriorates with age.

This is just a theory, so happy to be corrected.

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12-06-2015, 12:23 AM	#11
nw942 S3 - On the open road Join Date: Jan 2015 Posts: 96 Casino cash: $6460	I was told that it's usually the rear left subframe mounting point that goes first, so obviously there is extra loading in that corner. If you look at some pictures of the underneath of the car, the main difference between the left and right is the presence of the differential mounting on the left hand side. So one possible cause is that maybe the differential bushing starts failing first, which leads to extra play and then knock on stresses to the rear left subframe bushes/mounting. Obviously more aggressive driving and more violent gearchanges will affect the bushing, and I also suspect it will be exacerbated as the bushing deteriorates with age. This is just a theory, so happy to be corrected.