What would cause shaking/wobbling in the steering wheel at speeds above 40 mph. Before you answer, this is what has already been done to the front end. New Bilstein struts, left ball joint, and new idler arm. The front rotors need to be either turned or replaced, they pulse when applying brakes. The tires were balanced at a different place than the above work. So, any ideas?

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member