How do I add antifreeze to a Mazda 2000 MPV 2.5L radiator? The only thing I could find that resembles a radiator cap is on the reservoir.

Open the container of antifreeze. Using a separate EMPTY gallon-size container, pour out HALF of the contents into the empty container, making sure not to spill any. Now, FILL the newly filled container with tap water. Fill the rest of the antifreeze with water, also. Now, you are ready to add antifreeze to your vehicle! Simply locate the radiator cap, (Don't touch it if it's hot!!) and unscrew it. Pour the desired amount of your mixed antifreeze into the radiator. Remember not to do this without proper knowledge!

There is a coolant reservoir on this vehicle. You don't add directly into radiator. Find cap on radiator. A hose is attached there....follow the hose to a reservoir on the sidewall of engine compartment. This will be your coolant reservoir. Add coolant into that reservoir.

Both if so equipped (has a radiator cap). First top off radiator, then run to operating temp and add to reservoir until at the proper level. Test drive several miles, recheck reservoir.

Your coolant reservoir is on the side of the battery, has a yellow cap with a shell alike engraving. Just be sure that engine is cool before to open it; remember safety first!
George M

Air lock in cooling system not allowing coolant to circulate through heater core. Need to bleed air or burp air from cooling system. Look for a bleeder valve by the engine side of the upper radiator hose possibly or on radiator.

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Check this procedure to add and check Coolant level...

Warning: Do not attempt to remove the radiator pressure cap or expansion tank cap when the engine is hot, as there is a very great risk of scalding. Do not leave open containers of coolant about, as it is poisonous.

Car Care
• With a sealed-type cooling system, adding coolant should not be necessary on a regular basis. If frequent topping-up is required, it is likely there is a leak. Check the radiator, all hoses and joint faces for signs of staining or wetness, and rectify as necessary.

• It is important that antifreeze is used in the cooling system all year round, not just during the winter months. Don't top up with water alone, as the antifreeze will become diluted.




1. The coolant reservoir is located on the left-hand side of the engine compartment. The coolant level is visible through the reservoir.

2. If topping-up is necessary, wait until the engine is cold and remove
the cap from the reservoir. Add a mixture of water and antifreeze to the reservoir until the coolant is at the correct level. Refit the cap and tighten it securely.

Hope helps (rememnber rated this).

The coolant system has to be bled

possible head gasket do a preasure test on the coolant system to see if it loses any coolant or presure drops and check for leaks hope this helps

ABSOLUTELY NOT!!!! The MPV reservoir is not an overflow but part of the pressurized system. Ever think it's weird the radiator cap is located on the reservoir?

i had the same thing on my wifes 2000 mpv van...the ends of the radiator are made of some sort of composite type material....it had a slight crack in it....wasn't obvious until it got worse and started streaming water from it when warmed up....even after it cooled enough not to be spewing it was hard to actually see the crack though a few inches long....was hard to even see where the water and antifreeze mixture was coming from until i took out the radiator