Overview - Ignition System

Fig 1: Identifying Ignition System Overview

Courtesy of AUDI OF AMERICA, LLC

Knock Sensor
- Cylinder bank 1 (right): Knock Sensor 1 -G61- and Knock Sensor 2 -G66-
- Cylinder bank 2 (left): Knock Sensor 3 -G198- and Knock Sensor 4 -G199-
- Removing and installing. Refer to KNOCK SENSOR, REMOVING AND INSTALLING .
Bolt
- 20 Nm
O-Ring
- Always replace
Camshaft Position Sensor
- Intake side: Camshaft Position Sensor -G40-
- Exhaust side: Camshaft Position Sensor 2 -G163-
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
Bolt
- 9 Nm
Spark Plug
- Replacement interval. Refer to Maintenance Tables.
- Tightening specification. Refer to SPARK PLUGS, REPLACING .
Ignition Coil
- Removing and installing. Refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .
Connector
Bolt
- 5 Nm
Bolt
- 9 Nm
Camshaft Position Sensor
- Intake side: Camshaft Position Sensor 3 -G300-
- Exhaust side: Camshaft Position Sensor 4 -G301-
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
O-Ring
- Replace
Engine Speed Sensor -G28-
- Removing and installing. Refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING .
Bolt
- 4 Nm + 45°
- Always replace