Contents
Why do I have to keep filling my coolant reservoir?
When your coolant level doesn’t stay constant and you need to refill the tank frequently to keep your engine from overheating, it will be noticeable. A leaking head gasket or a leak in the head could be the cause of an internal leak.
What does it mean if my coolant keeps getting low?
The most likely culprit for low coolant levels is a leak somewhere in the system. Below, we’ll dive further in the types coolant leaks that could be present, how you might be able to detect some leaks and list a few of the other, less likely causes of a low coolant light that don’t have to do with a coolant leak.
What causes excessive coolant use?
This happens because of evaporation from the reservoir. Problematic situations may arise if there is a loss of too much coolant within a short time. This is often indicative of problems such as leaks, the inability of the radiator cap to hold pressure, or a highly heated cooling system.
Is it OK to fill coolant to max line?
Fill the reservoir to the MAX line. Do not overfill it. The coolant mixture expands as it heats up and needs room to do so. Replace the cap.
What should the coolant level be in a Mercedes Benz?
Access is sometimes difficult. Use MB coolant or Zerex G05 (usually carried @ NAPA). Premix to 50/50. A gallon of coolant and the rest water is probably fine. Car should not be running but afterward, run car with heater running and always check level later. Mix must be 50/50 according to MB, or else car will run higher temperature than intended.
Where does the coolant go when the radiator is cold?
So the coolant in reservoir can be sucked back into the radiator when it is cold even if the level is not all the way at top. (Most cars only have one hose at the bottom of the reservoir; seeing the hose at top made me thinking that was the only one without examining the bottom carefully.)
How does the coolant sensor work on a Mercedes Benz?
My engine has a viscous fan clutch that works by ambient temperature. The electric auxiliary fans work from the air conditioning pressure sensor as well as the coolant temperature sensor.
What should I do if my coolant level is low?
If the coolant level is low, water and MB anticorrosion/antifreeze should be used to bring it up to the proper level (have cooling system checked for signs of leakage). The water in the cooling system must meet minimum requirements, which are usually satisfied by normal drinking water.