My "new to me" E300 seems to wonder on uneven pavement. I notice this most when I am driving on the highway where there are ruts or wells in the smooth pavement caused by all the big trucks. When my car hits these areas it is very hard to keep moving in a straight line.

Additionally, there is a steeriing wheel vibration at about 65 mph that is not due to wheel balence.

What components could be the culprit?

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1996 (W210) E300D 86K - Traded in for a Lexus
1992 (W124) 300D 2.5 Turbo 202K - Sold
1983 (W123) 300D, 146K - Sold
1970 280S, 263K - Sold - Beginning of addiction