It sounds like it's due a set of shocks and it might be the source of your problem, but as any good electronics troubleshooter knows, diagnose before you act.

Since your multimeter won't do much for you when it comes to suspension/steering diagnosis, use the 4 P's instead. Get the car up safely, then Push, Pull, Pry & Prod on all suspension and steering joints. If you find slack anywhere, replace the offending part.

You also need to check the steering box for slack.

Hope this helps.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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