Overview - Ignition System

WARNING: This page is about a different car, the 2015 Audi A8 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Overview Of Ignition System

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 9 Nm
Camshaft Position Sensor
- Cylinder bank 1 (right)
  - Intake side Camshaft Position Sensor -G40-
  - Exhaust side Camshaft Position Sensor 3 -G300-
- Removing and installing, refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING
O-Ring
- Replace after removing
Knock Sensor
- The contact surfaces between the knock sensor and cylinder block must be free of corrosion, dirt and grease.
  - Cylinder bank 1 (right) Knock Sensor 1 -G61-
  - Cylinder bank 2 (left) Knock Sensor 2 -G66-
- Removing and installing, refer to KNOCK SENSOR, REMOVING AND INSTALLING
Bolt
- 25 Nm
Spark Plug
- Removing and installing using Spark Plug Removal Tool3122B, refer to FLUID CAPACITY TABLES information , Spark Plugs, Replacing.
- Tightening specification, refer to FLUID CAPACITY TABLES information , Spark Plugs, Replacing.
- Replacement interval, refer to 03 MAINTENANCE, DIAGNOSIS .
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-
- Ignition Coil 5 with Power Output Stage -N323-
- Ignition Coil 6 with Power Output Stage -N324-
- Removing and installing, refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING
Bolt
- 5 Nm
Wiring Harness
Engine Speed Sensor -G28-
- Removing and installing, refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING
Bolt
- 9 Nm
O-Ring
- Replace after removing
Camshaft Position Sensor
- Cylinder bank 2 (left)
  - Intake side Camshaft Position Sensor 2 -G163-
  - Exhaust side Camshaft Position Sensor 4 -G301-
- Removing and installing, refer to CAMSHAFT POSITION SENSOR, REMOVING AND INSTALLING
Bolt
- 9 Nm