Bosch Spark Plug - M 14 x 1.25

Refer to your vehicle's owner's manual for the recommended replacement interval. Typically, spark plugs should be replaced every 30,000 to 100,000 miles, depending on the type and usage.

Over-tightening can damage the spark plug threads in the engine cylinder head, leading to costly repairs. Always use a torque wrench to tighten to the specified torque (17 Nm).

It is best to use the spark plug specified for your vehicle. Using an incorrect spark plug can lead to poor engine performance, damage, or reduced fuel efficiency.

The electrode gap is the space between the center electrode and the side electrode. This gap is where the spark jumps across to ignite the air-fuel mixture. The correct gap (0,6 mm) is crucial for efficient engine operation.

Use a spark plug gap gauge to measure the distance between the electrodes. If the gap is incorrect, you can carefully adjust it using a gapping tool. However, it's often best to replace the spark plug if the gap is significantly off.

If the spark plug is fouled (covered in deposits), try cleaning it with a wire brush or replacing it. Fouling can indicate issues with the fuel system or engine.

The correct tightening torque for the Bosch Spark Plug M 14 x 1.25 is 17 Nm. Use a torque wrench to ensure proper installation.

Check the spark plug for wear, damage, or fouling. Replace if necessary. Also, ensure the electrode gap is correct.

Inspect the spark plug for any issues. Check the spark plug connections to ensure they are secure. Verify the engine's fuel supply and ignition timing.

Check the spark plug condition. Replace if worn or damaged. Ensure the spark plug is the correct type for your engine.

Ensure the spark plug heat range is correct for your engine. Check for carbon buildup and clean or replace the spark plug.