2011 C30 Automatic T5 drivetrain vibration

[precisionguesswork]

If the motors pitching back-and-forth Excessively, in the engine bay, when you rev it, you need to replace both motor mounts and the lower torque mount. As mentioned above, if all you do is replace one you’re putting more stress on other components because they’re not at the same durometer.

[Pretribrapper]

I think I figured out mine after spending way too much money. I had initially purchased aftermarket cv axles and was told that they could actually be the problem so I bought a GKN axle for the left (driver) side and had no change. Aftermarket one was probably fine. I then swapped out the right (passenger) side with an oem low mile axle BUT I also replaced my final suspension component. The lower control arms. The tear bushing on my right LCA was cracked straight through and I think that was ultimately the culprit. I did not replace with OEM on theses but kind of wish I had. I went with Moog which is good but the passenger LCA was missing the nut to mount the headlight bracket so I had to make my own. Not fun. All in all I do believe the shaking is gone and plan to do an alignment tomorrow whether it's needed or not as I have a lifetime alignment plan for my car. My motor is oddly still louder upon take off but that is a problem for another day.

[Pretribrapper]

[arnelious]

Hello,

Did you manage to find a solution to your problem?