Mazda 3 Service Manual: Valvetrain, Cylinder Head

Crankshaft Position (CKP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]

Removal CAUTION: When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine ...

Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Visual Inspection CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor outpu ...

Other materials:

Wrench Indicator Light
When the ignition is switched ON, the wrench indicator light is illuminated and then turns off after a few seconds. The wrench indicator light is illuminated when the preset maintenance period arrives. Verify the content and perform maintenance. Refer to Maintenance Monitor on . Low ...

When Liftgate/Trunk Lid Cannot be Opened
If the vehicle battery is dead or there is a malfunction in the electrical system and the liftgate/trunk lid cannot be opened, perform the following procedure as an emergency measure to open it: (5–door) Remove the cap on the interior surface of the liftgate with a flathead screwdrive ...

Oil Cooler Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled. A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall, causing death or serious injury. Never work ...