Replacing spark plugs: Installing

Fig 1: Ignition Coil Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check the rubber and the spring inside. Replace if necessary.
Check the spark gap: 0.7-0.8 mm.
Install the spark plugs. Screw the spark plugs in until the gasket is pressed against the cylinder head.
Tightening torque 25 Nm . Use special tool 9995702 .
Position the ignition coils. Press the ignition coils into place.
Tighten the screw. Tightening torque 10 Nm .
Connect the high tension cables.
Reconnect the connectors.
NOTE: The gray connector is for the left coil (cylinders 2 and 3), the blue connector is for the right coil (cylinders 1 and 4).
Check the function.
Install both engine covers.