Thread: W140 500SEL gunk in coolant overflow tank
View Single Post
  #2  
Old 10-10-2004, 02:06 AM
sixto's Avatar
sixto sixto is offline
smoke gets in your eyes
  
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,851
Most likely engine oil mixing with coolant. Very likely a bad head gasket. I would take it off the road ASAP. If the engine oil has any froth, don't start the engine until a knowledgable tech checks it.

Sixto
95 S420
87 300SDL
Reply With Quote