Ignition System Overview

Fig 1: Ignition System Overview

Courtesy of AUDI OF AMERICA, LLC

Knock Sensor (KS) 1 -G61-
- Contacts gold plated
- Removing and installing, refer to Knock Sensor 1 -G61-
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
- To remove, use the ignition coil puller T40039
Spark Plug
- 30 Nm
- Removing and installing, refer to MAINTENANCE PROCEDURES
Bolt
- 20 Nm
- The tightening specification affect how the knock sensor functions
Bolt
- 10 Nm
Camshaft Position (CMP) Sensor -G40-
- Contacts gold plated
O-ring
- If damaged, replace O-ring