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How to change spark plugs on Opel Astra H saloon – replacement guide
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Recommended replacement interval for the part category Spark plug : 4 year / 60000 km
Important!
This replacement procedure can be used for:
OPEL Astra H Saloon (A04) 1.8 (L69) … View more
The steps may slightly vary depending on the car design.
OPEL Astra H Saloon (A04) 1.8 (L69) … View more
The steps may slightly vary depending on the car design.
How to change spark plug on OPEL ASTRA H Saloon [TUTORIAL AUTODOC]

All the parts you need to replace – Spark Plug for Astra H Saloon (A04) and other OPEL models
Alternative products

Electronic spray
High-temperature anti-seize lubricant
Torque wrench
Spark plug socket # 16
Torx bit T40
Ratchet wrench
Crow bar
Fender cover
Replacement: spark plugs – Opel Astra H saloon. Tip from AUTODOC:
- The replacement procedure is the same for all spark plugs.
- All work should be done with the engine stopped.
Replacement: spark plugs – Opel Astra H saloon. Recommended sequence of steps:
- Step 1
Open the hood. - Step 2
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car. - Step 3
Remove the engine cover.AUTODOC recommends:Replacement: spark plugs – Opel Astra H saloon. Do not use excessive force when removing the part as this may damage it. - Step 4
Detach the connector from the ignition coil. - Step 5
Unscrew the ignition coil bolts. Use Torx T40. Use a ratchet wrench. - Step 6Pry up the ignition coil. Use a crowbar.Step 7
Take out the ignition coil from the spark plug well. - Step 8
Clean dirt, dust and debris from inside the spark plug wells. - Step 9
Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench. - Step 10
Take out the spark plugs. - Step 11
Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs. - Step 12
Install the new spark plugs into their mounting seats. - Step 13
Screw 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 – Opel Astra H saloon. AUTODOC recommends: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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