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Removing and installing Mazda 3 speedometer sensor

Disconnect the negative battery cable.

Remove the battery and its tray.

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Mazda 3 air conditioner and heater design

Mazda 3 vehicles are equipped with an automatic air conditioning system.

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Removing and installing refrigerant lines (LF) Mazda 3

Disconnect the negative cable from the battery.

Discharge the coolant

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Checking the front door speaker

Check the resistance between the front door speaker leads.

If the resistance is not correct, replace the front door speaker

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Checking the oil pressure in the Mazda 3 engine

A hot engine and oil can cause serious burns.

Before checking, stop the engine and wait until the engine and engine oil have cooled down