my temp gauge works grea till 100c, then goes up to red and stays there for a while. tapping dash will bring it back to 90-100c
still some times it bugs me.when i use my ir gun to check temp the thermostat is about 203f ,but top of head has temp at 212-223 f in some spots . no air pocket . 223f seems kind of high.
this is only in city traffic some times. also the coolant is red.
local german parts house says coolant should be blue
i would like to have correct coolant in car. should to be able to fix gauge but its on list. just not sure bout the temp in f degrees.
thank you rich

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88 300E White, sold 9-04
88 190E Black 2.3 sold
90 300CE White, Grey sold 12-24-04
92 400E White,Grey Sold 5-06
90 300CE 91K Signal Red,Black Sold 2007
1989 300CE Smoke silver,Tan Sold 1-08
1993 300E 3.2 M104 motor
1991 300CE White,Grey
1994 E420 beautiful car,gone to new home
1994 E320 Smoke an Parchment.Beautiful car