Quote:
Originally posted by Chevota
Now I always drill a small hole in the thermostat to allow air to escape, that is if I run a stat at all. I've had so many of them fail and come close to ruining engines that I usually just remove them if I can get away with it.
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MB thermostats usually have an air bleed hole as standard.
Running MB engines without a thermostat is definitely not recommended. They run a two-way thermostat which has two valves that operate in two coolant paths. When cold, coolant is allowed to circulate via the pump and water jacket. As the temperature rises some coolant is diverted via the radiator. At high temperatures all the flow is via the radiator. Removal of an MB thermostat will completely interfere with the intended flow of coolant and operation of the ccoling system. Some engines with a single valve may be OK without a thermostat (although the need to do this suggest some other problem) but do not remove the thermostat on a Mercedes-Benz engine.
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107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership).
107.026: 500SLC, 4-speed auto, thistle green, green velour.
124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex.
201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather.
201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex.
201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather.
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