Adjusting the rear axle toe of a Mercedes vehicle can be quite a bit of work. Trying to remove the plastic underbody while avoiding damage to the plastic fasteners is no easy task. Mueller-Kueps has come out with the Mercedes Alignment Wrench (512712) to help combat this problem.
This tool can access and adjust the rear axle toe without you having to remove the underbody. Because you do not need to remove anything, you do not damage the fasteners. Universal fit allows adjustments on most Mercedes. In the end this tool will save you both time and money.