My bmw 1999is is making a clunk noise in left of the car cant go over 10mpg before it start to clunk

I recommend you stop driving now and call for a tow truck. Hands on inspection is needed to properly diagnose this issue and it sounds dangerous Here is a link to find a shop near you. https://repairpal.com/repair-shops Alex

Can you tell me what the diagnosis was of your problem? My 2000 323i just encountered the exact same problem