Overview - Ignition System

WARNING: This page is about a different car, the 2022 Audi SQ5, 2021 Audi SQ5, 2020 Audi SQ5, 2019 Audi SQ5, and 2018 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

Shown on a 3.0L engine.

Fig 1: Exploded View Of Ignition System

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 25 Nm
- Tightening specifications affect the function of the knock sensor
Knock Sensor 2 -G66-
- Removing and installing. Refer to Knock Sensor 1 -G61- / Knock Sensor 2 -G66-, REMOVING AND INSTALLING .
O-Ring
- Always replace after removing.
Camshaft Position Sensor 2 -G163-
- Intake side
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
Bolt
- 9 Nm
O-Ring
- Always replace after removing.
Camshaft Position Sensor 4 -G301-
- Exhaust side
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
Bolt
- 9 Nm
Spark Plug Connectors
- Installation position. Refer to IGNITION COILS, REMOVING AND INSTALLING .
Bolt
- Tightening Specification: → Maintenance
Ignition Coil
- 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-
- Ignition Coil 5 with Power Output Stage -N323-
- Ignition Coil 6 with Power Output Stage -N324-
- Removing and installing. Refer to IGNITION COILS, REMOVING AND INSTALLING .
Spark Plug
- Removing and installing. Refer to SPARK PLUGS, REPLACING
- Replacement interval. Refer to MAINTENANCE, DIAGNOSIS .
- Tightening Specification. Refer to SPARK PLUGS, REPLACING
O-Ring
- Always replace after removing.
Camshaft Position Sensor 3 -G300-
- Exhaust side
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
Bolt
- 9 Nm
O-Ring
- Always replace after removing.
Camshaft Position Sensor -G40-
- Intake side
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING .
Bolt
- 9 Nm
Knock Sensor 1 -G61-
- Removing and installing. Refer to Knock Sensor 1 -G61- / Knock Sensor 2 -G66-, REMOVING AND INSTALLING .
Bolt
- 25 Nm
- Tightening specifications affect the function of the knock sensor
Bolt
- 9 Nm
Engine Speed Sensor -G28-
- Removing and installing. Refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING .
O-Rings
- Always replace after removing.