I agree with euronatura...

Check alignment and tire pressure first. If your setup is basically stock in all counts and problem/symptom persists, you just might some other problem i.e. bushing, loose suspension component.

good luck,

__________________
sjsfiji

'87 W124 260E (DD)
98K orig. mi. @7/15
CLK 7-Spoke Forged Wheels
Neuspeed springs/Bilstein Sport
4/3 bump (F/R)

'97 993 Carrera
106K orig. mi.
Always driven like it's stolen