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How to change spark plugs on Peugeot 406 saloon – replacement guide
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Recommended replacement interval for the part category Spark plug : 60000 km
Important!
This replacement procedure can be used for:
PEUGEOT 406 (8B) 1.8 16V … View more
The steps may slightly vary depending on the car design.
PEUGEOT 406 (8B) 1.8 16V … View more
The steps may slightly vary depending on the car design.
How to change spark plug on PEUGEOT 406 TUTORIAL | AUTODOC

All the parts you need to replace – Spark Plug for 406 (8B) and other PEUGEOT models
Spark plug
Alternative products

High-temperature anti-seize lubricant
Spark plug socket # 16
Drive socket # 8
Ratchet wrench
Torque wrench
Flat Screwdriver
Telescoping magnet
Fender cover
Replacement: spark plugs – Peugeot 406 saloon. AUTODOC experts recommend:
- The replacement procedure is the same for all spark plugs.
- Warning! Shut down the engine before starting any work – Peugeot 406 saloon.
Carry out replacement in the following order:
- Step 1Open the hood.
- Step 2Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
- Step 3Remove the engine cover clips. Use a flat screwdriver.
- Step 4Remove the engine cover. Use a flat screwdriver.Replacement: spark plugs – Peugeot 406 saloon. AUTODOC recommends:Do not apply excessive force when removing the part. Otherwise you may damage it.
- Step 5Detach the connector from the ignition coil. Use a flat screwdriver.
- Step 6Unscrew the ignition coil bolts. Use a drive socket #8. Use a ratchet wrench.
- Step 7Remove the ignition coil by pulling it straight up.
- Step 8Clean dirt, dust and debris from inside the spark plug wells.Step 9Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
- Step 10Take out the spark plugs. Use a telescoping magnet.
- Step 11Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
- Step 12Install the new spark plugs into their mounting seats. Use the spark plug socket #16.
- Step 13Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 25 nm torque.Replacement: spark plugs – Peugeot 406 saloon. Tip from AUTODOC experts:Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
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