please help!! 2003 clk500 38,000 miles was driving a/c went warm and loud engine nois
 

loud engine noise started from the front lower part of the engine? all the belts are still there..no overheating occured..oil is full..just real noisy..doesnt effect handling or pwer of car seems to run fine just real noisy
compressor? any idea what happened? is it driveable?i need to get it home and i cant afford a tow or to even fix this now... :( any help would be great..thanks guys