Overview - Ignition System

Fig 1: Ignition System Components Location

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 20 Nm
- The tightening specifications affects function of the knock sensor
Knock Sensor 1 -G61-
- Versions: depending on the version the Knock Sensor 2 -G66- is additionally installed. Refer to appropriate SYSTEM WIRING DIAGRAM(S) information.
- Removing and installing. Refer to Knock Sensor 1 -G61-, REMOVING AND INSTALLING .
Bolt
- 9 Nm
Camshaft Position Sensor -G40-
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
O-ring
- Always replace after removing.
Ignition Coil with Power Output Stage
- Ignition Coil 1 with Power Output Stage -N70-
- Ignition Coil 2 with Power Output Stage -N127-
- Ignition Coil 3 with Power Output Stage -N291-
- Ignition Coil 4 with Power Output Stage -N292-
- Removing and installing. Refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .
Spark Plug
- 30 Nm
O-ring
- Always replace after removing.
Engine Speed Sensor -G28-
- Removing and installing. Refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING .
Bolt
- 4.5 Nm