When I first got my 300D, the temp would stay just above 80 during most conditions, but after a coolant flush and new t-stat, the temps were always slightly higher (90C range). I tried several t-stats from 3 different sources (including MB, which appeared to be the same manf. as Behr) and nothing fixed the issue.
Last week I decided to try a 75C t-stat spec'd for a 116 V8.
The temps have now returned to the 80C range and stayed there throughout my weekend trip to the Central Florida GTG.
The t-stat appears to be very similar in design with the exception of a relief valve? on the outer part.
I'll report back later if anything changes, but I think this has fixed my issue.
03-29-2010, 11:48 AM
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