C230 Creaky Front End

[rmwmh1]

Our 1998 C230 makes a creaky sound on the right ( passenger) side at the front end going over small bumps at fairly low speeds . The same sound can be produced by just pushing down fairly hard on the front fender at a point about parallel to the air filter housing . The car has 107,000 miles about 50% in town . Any idea of the cause and remedy ?

Thanks ,