Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2014 Mazda 5 TouringFACTORY OEM SERVICE PROCEDURE

Knock Sensor (KS) Removal/Installation

Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION .)
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION .)
Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the KS connector.
Remove the KS.

Fig 1: Knock Sensor And Bolts With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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