My car, with new Radiator and proper fluid and new temperature sender will commonly show over 100 C (maybe that 105 shown up there in that picture) but a quick check with a Infrared thermometer never shows more than 91 C. My problem appears to be with the gauge itself. It will jerk up there and then jerk down fairly quickly and sometime read normally for a while. It is inconsistent. Could be grounding or could be a voltage issue to the gauge. Don't know, but I can live with it as long as I know the real temps. One of these days I will mess with it and fix it.

Check it with an infrared Thermometer and confirm its really correct before you do anything else.

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1983 300D-Turbo - Deep Blue w Palomino MB Tex (total loss in fire 1/5/09 RIP)
1995 E320 W124 Polar White/Grey Mushroom MB Tex
2005 F150 Supercrew - Arizona Beige - Lear topper
1985 Piaggio Vespa T5 - Black and Chrome

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