mJstk01

CLS550 is tuned w/ Renntech and has been since 2014. I first noticed this sensation after tuning with gain in power. However, this seems to be happening more often than not as time has progressed under hard acceleration these days (e.g. full throttle), especially when car is already moving or I'm making lane change. By waddle, the car leans left and right simultaneously until throttle is let off. The car otherwise drives straight, but it feels very unstable only under hard acceleration. This will not occur if acceleration is light to 1/2 throttle into high speeds. It also happens less if i'm driving straight without lane change under hard acceleration and it seems to occur more in comfort mode as opposed to sport mode on suspension setting.

Does anyone else have this issue and any ideas of potential problem? I would presume its suspension related, but being the car is equipped with airbags...is there a solution to get the ride stiffer?

Look forward to feedback.