Spark plug (157)

/ 9-3 (9440) / 2006 / 2. Engine / 4-cylinder petrol / Engine management system Trionic T8 / Adjustment/replacement / Spark plug (157)

To remove

1.	Remove the cover over the ignition coils.

2.	Remove the bolts, lift up each ignition coil and move aside. Start with the ignition coil for cylinder 1.

3.	Remove the spark plugs, socket 8394785.

To fit

1.	Check the spark plug gap as described in Spark plugs (157) .

2.	Fit the spark plugs, keeping the socket straight so the spark plugs are not damaged. Tightening torque 28 Nm (21 lbf ft)

3.	Fit the respective ignition coils starting with the one for cyl 4. Tightening torque 20 Nm (15 lbf ft).

4.	Make sure to locate the ignition coil cables so they are not pinched.

5.	Fit the cover over the ignition coils. Tightening torque 8 Nm (6 lbf ft).

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