Checking the intake system components (Mazda CX-5KE)

Checking the air filter element

1. Remove the air filter element.

2. Check the following:

• When was the filter element last replaced?
• Is the filter element dirty, damaged or deformed?
• Is the air filter housing sealed sufficiently?
• Is the air filter element installed correctly?

3. If any defects are found, replace the air filter element with a new one.

Checking the throttle body (gasoline engine)

1. Disconnect the negative battery terminal.

2. Disconnect the throttle body connector.

3. Measure the resistance between terminals E and F of the throttle body connector.

Note: Throttle body resistance: 1.38 ohms.

4. If the measured value is not within the standard, replace the throttle body with a new one.

Checking the check valve

Checking the air flow

1. Remove the vacuum hose.

2. Blow into the vacuum hose from the vacuum pump side with your mouth and make sure that air comes out from the intake manifold side. Then blow from the intake manifold side and make sure that air does not come out from the vacuum pump side.







3. If the check valve is faulty, replace it together with the vacuum hose (gasoline engine) or separately (diesel engine).

Checking the air-to-air intercooler (diesel engine)

1. Remove the air-to-air intercooler (intercooler) from the car.

2. Seal port A.



3. Apply compressed air through port B and check the tightness of the intercooler. If air leaks are detected through the intercooler, replace it with a new one.