Ignition system, assembly overview

1 - Knock Sensor (KS) 1 G61 and Knock Sensor (KS) 2 G66

• Contacts gold plated

2 - Ignition coil with power output stage (N70, N127, N291, N292)

• Removing and installing → Ignition coils with power output stage, removing and installing 
• To remove, use the ignition coil puller T40039

3 - Spark plug

• 30 Nm
• Removing and installing →
  • 01 - MAINTENANCE
  • 01 - MAINTENANCE for MAINTENANCE PROCEDURES - CABRIOLET

4 - Bolt

• 20 Nm
• Tightening torque affects function of Knock Sensors (KS)

5 - Bolt

• 10 Nm

6 - Camshaft Position (CMP) sensor G40

• Contacts gold plated

7 - O-ring

• If damaged, replace O-ring