First thing that comes to mind is a bad ball joint. If the boot is broken and the joint is dry, it can make some pretty awful noises. Try shooting some lithium grease in it to see if the noise goes away. After 22 years and 210k miles, there is probably a lot of suspension work in your future. Hie thee to a shop to get the front end checked out; this can be dangerous.

Good luck,
Tom
'82 300D 320k, rides like a dream on almost completely rebuilt suspension