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Your car's owner's manual will specify how often you should replace the coolant. In general, every 24,000 to 36,000 miles is about right, or about every 24 to 26 months.
A Mercedes 190e doesn't have a carburetor. They are fuel injected.
Depends on your mecanical skills--A Haynes manual will help but it is not easy. If you do it be sure to measure the length of your head bolts and if you have oil in the coolant all hoses must be replaced
By adding coolant to the overflow reservoir, if it does not turn off when at the proper level the sensor is most likely faulty.
my 1993 190E 2.3 is doing the same thing. just replace the switches...they tend to not last
You will have to replace the refrigerant, but not the engine coolant.
how do you replace coolant temp sensor on a rodeo
By using a tool box open the location and remove it to replace it with a new one
Remove the hoses and clips , replace the hoses and clips!
Open the drain out valve at the bottom of the radiator to allow the coolant to run out. Replace the valve and add the fresh coolant.
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