To prevent puck marks when the coils collapse and hit each other. This is especially a problem for dual-rate springs, like these Eibach rears. The top (softer) section is purposely designed to collapse on initial compression, in order for the lower (stiffer) section of the spring to take effect.
Yes. Eibach springs on my '19 2.0T. The "bend" in the coil is mostly due to the dual rate spring. The top section is softer and creates a discontinuity with the lower stiffer section, as they react differently to compressive load. It's by design and no real cause for concern. Once the top section is fully collapsed, that section becomes a rigid body and can bend no more. The slight kink does not affect how the lower section works.
you have the fix for the rear end craziness, the aftermarket sway bar. That's what finally killed all uneasiness on mine. Now, perhaps they didn't tighten the links under preload after they installed the springs. or something else wasn't fastened right after install if they removed the front struts to get the springs out. (I didn't have to remove the strut from the hub to get the spring out when I did mine.) The rears don't require removal of the shocks, just undoing the lower arm bolts and the swaybar endlink. Try to see if the behavior is worse when you hit a bump with one side as opposed to the other, maybe it can be narrowed down that way.
I have the sways but they set it at a firm setting and the roads here aren’t very good ima go for a drive now to fill gas and test your theory
I have my front bar on soft, rear on firm. was the front bar on firm before the spring install? I have not driven mine with the front on firm, although my solid-core ARK front bar is 2mm thicker than the hollow-core eibach at 25mm, so mine's already a good bit firmer than the eibach on soft.
Getting a new set of tires and and alignment in a week or two I’ll let you guys know if it’s still a rodeo on the rough roads
