Astra L4-1.8L (2009)
Spark Plug: Service and Repair
Spark Plug Replacement
Removal Procedure
1. Remove the ignition coil. Refer to Ignition Coil Replacement (See: Powertrain Management/Ignition System/Ignition Coil/Service and Repair).
2. Remove the 4 spark plugs.
Installation Procedure
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
1. Install the 4 spark plugs.
Tighten the 4 spark plugs to 25 Nm (18 in ft).
2. Install the ignition coil. Refer to Ignition Coil Replacement (See: Powertrain Management/Ignition System/Ignition Coil/Service and Repair).