Ignition System: Service and Repair

Ignition System Assembly Overview

• The engine speed sensor is located on the cylinder block. Refer to => [ Engine Speed Sensor ] Service and Repair.






1 Ignition Coil with Power Output Stage (N70, N127, N291, N292, N323, N324)

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

2 Connector

• Black

• Use the assembly tool (T10118) to disconnect.

3 Bracket

• For the knock sensor 1 connector.

4 Bolt

• 20 Nm

5 Connector

• Black, 3 pin

• Contacts are gold plated.

6 Knock Sensor 1 (G61)

• Installed location: Exhaust side of the cylinder block.

7 Bolt

• 20 Nm

• Tightening specification affects the function of the knock sensor.

8 Exhaust Camshaft Adjuster

• Identification: 32A

• With the sensor wheel for the Camshaft Position (CMP) sensor 2.

• Removing and installing, refer to => [ Camshaft Adjuster ] Camshaft Adjuster.

9 Cover

10 Connector

• Black, 3 pin

• Contacts are gold plated.

• Mark the connector before disconnecting.

11 Bolt

• 10 Nm

12 Camshaft Position Sensor 2 (G163)

• For the exhaust camshaft

• Contacts are gold plated.

13 Seal

• Always replace.

14 Camshaft Position Sensor (G40)

• For the intake camshaft.

• Contacts are gold plated sensor.

15 Knock Sensor 2 (G66)

• Installed location: Intake side of the cylinder block.

• Contacts are gold plated.

16 Connector

• Black, 2 pin

• Contacts are gold plated.

17 Intake Camshaft Adjuster

• Identification: 24E

• With the sensor wheel for the CMP sensor.

• Removing and installing, refer to => [ Camshaft Adjuster ] Camshaft Adjuster.

18 Spark Plug

• 18 Nm

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

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

19 Control Housing

• For the camshaft adjustment.

• Removing and installing, refer to => [ Sealing Flange, Transmission Side ] Service and Repair.