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Frequently asked questions about cars and motorcycles

How to Properly Install New Spark Plugs in the Car

Model: (Various brands) Various
Part: Spark plugs

In this video tutorial, you can see how to properly install new spark plugs in the car. The first thing to do is to get in the vehicle and engage the handbrake, then pull the lever to lift the bonnet; once the bonnet is raised, secure it with the appropriate prop. Prepare a torque wrench to tighten the spark plugs accurately, otherwise, they may be damaged (each tightening torque corresponds to a tightening angle); for the flat seat spark plug of 14 mm, the correct tightening torque is 25 Nm. If you do not have a torque wrench, a tightening angle of 180° to 240° is required.

Updated on 16 July 2026 by ScegliAuto

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