PeachParts Mercedes-Benz Forum - View Single Post

cphilip · #6 12-29-2008, 08:26 PM

I don't have a lot of experience in this but I have read a lot here and on other forums that discuss temperatures and such. And what my recently obtained wagon does. And I consider this to be normal from all I can read on this and hear reported

It will run along at about 82 C all day long. At a brief stop light it will normally stay there or raise no more than 2 degrees C. If its a prolonged stop maybe 5 minutes or so it might raise up to 90. If it is stop and go from there and never gets much up to speed between multiple stops it might go to 100C. This is in fairly warmish weather. Say 60-70 F? With No AC on... in EC mode. But fairly close to that with AC on.

If I force it to heat up as much as possible, such as put the AC on and take it for a long run to really heat it up, and then park it and let it idle with AC on it will finally go to the Full fan mode (107C) after about 5-10 minutes of sitting still. But it will hold it there at 107 C if not drop it a degree and proceed no further up the gauge.

This is sort of what I was doing to them when I was looking at them to buy one too. Running hard with AC on and then letting them sit at idle with AC on. Noting temperature rise. Most of them responded this way. Most of them were hard to get hot enough to finally get to 107C but they all would eventually be forced to do so.

I imagine my slip clutch fan might be a bit worn and probably all the ones I looked at were too.... but it was fairly consistent except for one I looked at that ran a tad hotter than these others.

I could be wrong but that seemed normal to me. Its not been terribly cold here where I live recently so they all got tested in fairly mild weather.