I know this is an OLD thread, but I am having the same problem with mine, and would like to change out my noisy lifter!

Can anyone direct me to a DIY page that talks about how to do this? Or maybe walk me through it on here? What tools will I need? Thanks!

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Current cars:
2000 ML55 AMG, 174k miles
2003 C240 T-Modell, 202k miles
1995 S320, 207k Miles