Thread: thermo vacuum switch function???
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Old 01-07-2001, 08:44 AM
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MBenzNL MBenzNL is offline
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Join Date: Jan 2001
Location: the Netherlands
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The thermo vacuum switch on mercedes diesels let the car make more stationary rpm's during a short period of the engine being cold. After a short time the engine gets gains a little in temperature and the vacuum switch closes and the stationary rpm's get less.
I do not know whether the purpose of a vacuum switch on a 300E is the same.
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