Overview - Ignition System

Fig 1: Exploded View Of Ignition System

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 20 Nm
- The tightening specifications affect function of the knock sensor
Knock Sensor 1 -G61-
- Removing and installing. Refer to Knock Sensor 1 -G61-, REMOVING AND INSTALLING .
Spark Plug
- Tightening specification. Refer to SPARK PLUGS, REPLACING .
- Remove and install with the Spark Plug Removal Tool:3122B . Refer to SPARK PLUGS, REPLACING .
- Replacement interval. Refer to MAINTENANCE, DIAGNOSIS (MAINTENANCE INTERVALS - 2017) / MAINTENANCE, DIAGNOSIS (MAINTENANCE SCHEDULE - 2018) .
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 .
Bolt
- 8 Nm
Bolt
- 8 Nm
Camshaft Position Sensor -G40-
- Engines with two camshaft adjusters: also equipped with Camshaft Position Sensor 2 -G163-
- Removing and Installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
O-ring
- Replace if damaged
Sensor Wheel
- For the Engine Speed Sensor -G28-
- Unit with sealing flange on the transmission side
Transmission Side Sealing Flange
- Removing and installing. Refer to SEALING FLANGE, REMOVING AND INSTALLING, TRANSMISSION SIDE .
Engine Speed Sensor -G28-
- Removing and installing. Refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING .
Bolt
- 4.5 Nm