View Single Post
Old 10-03-2013, 01:43 AM   #8 (permalink)
ConnClark
DieselMiser
 
ConnClark's Avatar
 
Join Date: Jun 2008
Location: Richland,WA
Posts: 966

Das Schlepper Frog - '85 Mercedes Benz 300SD
90 day: 23.23 mpg (US)

Gentoo320 - '04 Mercedes C320 4Matic
90 day: 22.44 mpg (US)
Thanks: 46
Thanked 227 Times in 156 Posts
The coolant doesn't normally flow until through the heater core until the heater is selected. If you notice a significant drop in temps with the heater on your radiator block is too much and will lead to excessive engine wear.
__________________
  Reply With Quote
The Following User Says Thank You to ConnClark For This Useful Post:
Cd (10-11-2013)