Want to flush the cooling system of a 2005 Mazda MPV. How much coolant is required to re-fill the cooling system?

need diag Dani, Check the attached links,instruction and guides shows all cooling components in diagram and part #'s, Good luck
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2001 Mazda MPV Parts MileOneParts com

2001 mazda mpv cooling system diagram Google Search

Heater core coolant hose lines inlet and outlet location mazda mpv viewer...

I've owned my 2000 MPV since new and in that time and 250K miles later I have replaced the radiator and water pump and overflow tank. I have never bleed the cooling system. I have encountered no cooling related problem. I live in south Florida.

Remove the battery and battery tray.
Drain the engine coolant.
Remove the water pump drive pulley.
Remove thermostat case
Remove water pump tensioner
Remove water Outlet pipe
Remove water pump
Reverse disassembly order to install water pump.
Fill and bleed cooling system

you will have to fill the cooling system and get all the air out of the system at the same time you can see if you notice a leak anywhere(dripping of liquid)and if so trace were the fluid is leaking out of.once the cooling system is full pressure test the system and see if you see a leak and find were its leaking.once you find whats leaking then you will know what you need to fix it.

Have a cooling system flush..your heater core may be clogged.

Are there clogs in the system that may be fixed by flushing and filling with coolant?

Do both tubes leading to the heater core get hot when the engine is hot?

If not, then the heater core is plugged up.

Otherwise, if the two tubes are hot leading to the heater core, the blend door is not opening.

Also, is the radiator's cooling fan operating when it gets hot?

These are a few questions to ask.

Good luck on this repair.

Check coolant level. if its ok than ride. If from expansion cap coming some flush or many many coolant aut check thermostat and check cooling fan system is sensor ok and relay.

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

Fix the overheating problem first.Could just be a faulty coolant temperature sensor.
Then tackle the charging system.
Maybe a bad cable or alternator on the way out.