Thread: W210 overheats
View Single Post
  #9  
Old 08-27-2011, 11:22 AM
Jeremy5848's Avatar
Jeremy5848 Jeremy5848 is offline
Registered Biodiesel User
 
Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,402
Your information that the heater can extract enough heat to return the system to a safe temperature is critical. It says that the radiator is not doing its job, either due to an air bubble that has not yet worked its way out of the system or a clog somewhere in the radiator or the lines that feed it, or a failure elsewhere in the system.

You could try draining the system, disconnecting the top and bottom radiator hoses, and try running garden hose water through the radiator to check for an obstruction. If the radiator seems OK, look for blockages in a hose, thermostat mis-installed, water pump failing, etc.

Finally, you have not shared with us information on what the car was doing earlier, that is, did this problem come on gradually over the last several days/weeks/months, or did it start suddenly one day having been fine the previous day?

Jeremy
__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
Reply With Quote