My son drives a 91 940 GLE, and the other day, while driving very slowly (5 mph, maybe slower according to those who saw it) he hit a divider in a parking lot, it was probably 18 - 24 inches wide, so the tires didn't hit it, but it ripped off the black plastic piece under the front of the engine compartment, which I think it to protect that area from water, etc., but I don't see any other visible damage (going to look better tomorrow in the daylight). But, when the car gets up to 30 MPH or more, there is a terrible screeching sound from the front end. He also says the steering feels a little funny (probably knocked something out of alignment too.) The screeching increased or decreases depending on which way the steering wheel is turned.
Any idea what it could be, or what I should take a closer look at?

Thanks