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Mazda CX-5 Service & Repair Manual: Cooling System Cap

Purpose, Function

Construction

Operation

When engine coolant temperature is high

1. When the engine coolant temperature is high, the pressure in the engine coolant passage increases and the pressure valve is pressed and opened.

2. Engine coolant flows into the coolant reserve tank when the pressure valve is open.


When engine coolant temperature is low

1. When the engine coolant temperature is low, the pressure in the engine coolant passage decreases and the vacuum valve is opened.

2. Engine coolant in the coolant reserve tank flows into the engine coolant passage when the vacuum valve is open.


Cooling System Cap Inspection
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may ...

Cooling System Service Warnings
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may ...

Other materials:

Master Cylinder
Purpose/Function With the adoption of the master cylinder having an enlarged diameter (20.64 mm {0.8126 in}), brake pedal operability has been improved. For vehicles with DSC, the diameter of the pipe between the master cylinder and the DSC HU/CM has been increased, improving re ...

Oil Control Valve (OCV) Removal/Installation
WARNING: A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing. 1. Disconnect the negative battery cable.. 2. Remove the plug hole plate.. 3. Remove the ignition coil/ion sensors.. 4. Remove the cylinder head cover.. 5. Remove in ...

Forced Ignition On
NOTE: In order to perform a forced ignition ON, the M-MDS is necessary. If the servicing is being done outside of an Authorized Mazda dealership, contact an Authorized Mazda dealership for instructions. The forced ignition ON procedure forces a power supply to each part when ...

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