I do need lower control arm bushings, but am pretty sure that this has no effect on what I'm about to say.

I don't know if this is normal or not...?... When my car is stopped withtthe engine off (or on for that matter) and the steering wheel is not locked, there is about (roughly ) 15 degrees of play before any resistance is felt, the same goes for when the car is on, only the power steering being the resistance (hardly).
Is this normal?

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)