Ignition System: Service and Repair

Ignition System Component Overview

• The engine speed sensor (G28) is on the cylinder block. See - item 14 - in => [ Cylinder Block ] Engine Component Overviews.






1 Knock Sensor 1 (G61)

• It is necessary to remove the thermostat first in order to remove the sensor. Refer to => [ Coolant Thermostat Housing with Thermostat ] Service and Repair.

• Contacts are gold plated.

2 Knock Sensor 2 (G66)

• It is necessary to remove the oil filter bracket first in order to remove knock sensor. Refer to=> [ Oil Filter Adapter ] Service and Repair.

• Contacts are gold plated.

3 Ignition Coil with Power Output Stage ((N70, N127, N291, N292))

• Removing and installing, refer to => [ Ignition Coils with Power Output Stages ] Service and Repair.

4 Spark Plug

• Tightening specification, refer to => [ Test Data and Spark Plugs ] Test Data and Spark Plugs.

• If the spark plug is replace, grease the ignition coil with power output stage. Refer to => [ Installing ] Service and Repair.

• Type and electrode gap, refer to => [ Test Data and Spark Plugs ] Test Data and Spark Plugs.

• Remove and install using the spark plug removal tool (3122 B).

5 Bolt

• 20 Nm

• Tightening specification affects the function of the knock sensor.

6 Bolt

• 10 Nm

7 Camshaft Position Sensor (G40)

• Contacts are gold plated.

8 O-ring