Quote:
Originally Posted by barry123400
I would consider putting your present and replacement thermostats in a pan of water and watching for the opening points. This best preformed with a thermometer in the water as well.
I am at best a part time hobby mechanic so I would also verify the thermostat has been installed in the correct way. Otherwise for example I might just copy the way the last one was installed.
My gut feeling is that the gauge itself is suspect. If there were another 123 type in my possesion or I had a local friend or aquaintence with one. I would extend my gauge wire to his sendor and use a battery jumper cable betwen the two cars to link a common ground. There is so little current even a speaker wire is more than enough.
He would know instantly when his car came up to temperature if your gauge was relativly accurate. You do not want to land up going in circles.
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This is not a bad idea. the engine in my 240D is still running and hooked up. I actually took the sender out of it as a known good sender as well and put it in the 300D, but I could certainly perform this test if the thermostat did not work. This makes me curious, could there be a difference in temp gauges/senders between the 616 and 617? Would I be able to perform this test on a 240 vs a 300?
11-23-2010, 09:23 AM
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