Hi Tom,

I recently had a PPI done on a 93 500E and the compression results ranged from 155 to 157. This was in high altitude and as I understand it air density is less at high altitude thus lower numbers. Anything below 150 would be something to worry about. A really good engine would be around 170 near sea level.

I found this information on an earlier thread , if I find it I will post it for you to read.

By the way I never did get the 93 so I'm still looking too.

Good Luck and I hope this helps.

__________________
Afshin

Current:
02 C32 AMG

Previous:
92 500E
84 190E 2.3 5 Spd