First a confession- my 240D has the green stuff in it from a PO and I need to get it out of there and will do so in the next few weeks, when I get time.
I have had this car 4 ½ years-some PO pulled out aux fan, part of AC system, etc. For the first 3 ½ years it almost never ran above 175-180F, except on an Eyetalian tune up on I 95 on a hot summer day. Last summer I noticed that it would warm up under load even at ambient temps of 40F and would go up to about the 212-horizontal line. Never went above it and always came back down with less demand in engine. So apart from changing the evil green stuff to G-05, what is the next most likely cause of this symptom? Since it is still a minor problem, I am thinking of just trying this first because I no longer drive this car as my 300-500 miles a week commuter car. I do know about cooling systems in other cars, such as belts, thermostat, etc. So what should I do first, either after or in conjunction with the refill? TIA Dwight Dwight E. Giles, Jr. 1979 240D-250K + miles 1990 300D 2.5t 135K miles Wickford, RI
