Alright, I finally got around to jacking up the front left of the car (driver's side) and there was a little bit of play when grabbing the wheel and pulling/pushing it on one end.
Also, the squeeking has gotten quite a bit worse... when the car is warm and/or has been driven quite a bit then the squeak gets terribly loud and embarrassing!
I am going to let it get just a little bit worse before I take it in to get checked out again. I will have him check the wheel bearing and the upperball joint.
Also, which of the two aforementioned problems seems more likely to cause a vibrating steering wheel? It has gotten pretty bad and vibrating steering wheels drive me nuts. It's only when driving over 50 mph. I recently had a balancing, so I have ruled that out. It's getting progressively worse... and really annoying the crap out of me!
Also, what is a rough estimate on the repair for the upper balljoint or the front wheel bearing? THanks guys.
2006 E350 w/ 155k miles (Daily Driver)
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!)