quote "the control arm bushings are really, really hard to remove and replace without the correct bushing removal tool."

Even with the factory special tool these bushings are probably the hardest and tightest of any of the late model cars. I just did a set of these last week and every time I do them I am amazed how tight they are.

Another option you may consider would be to remove the control arms yourself and take them to an independent shop or dealer to have the bushings installed.

Good luck, Robert.

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Mercedes Benz Master Tech - Retired