Rubbing Rubber Sound

[ejsharp]

My wife came home today with the 1993 190E and the car was making a sound that appears to be coming from the area of the right front wheel. It is a kind of low pitch tonal squeek that only occurs when the steering wheel is turned in either direction. It sounds like rubber rubbing against itself or against steel.

I did a visual check with a flash light but I saw nothing unusual. Could it possibly have something to do with the cold weather? Temperatures are down to about 20 degrees farenheit.

Thanks.