Ignition System, Servicing
WARNING: This page is about a different car, the 2009 Audi A8, 2008 Audi A8, 2007 Audi A8, 2006 Audi A8, and 2005 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.
→ Ignition System Components, Removing and Installing .
→ Technical Data, Spark Plugs .
→ Ignition Coils With Power Output Stage, Removing and Installing
→ Ignition Coils With Power Output Stages, Checking
→ Camshaft Position Sensor, Checking
→ Camshaft Adjustment Valves, Checking
NOTE:
- For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary.
- The batteries must only be disconnected and connected with the ignition switched off, since the Engine Control Modules (ECM) can otherwise be damaged.
- Engine Control Modules (ECM) are equipped with On-Board Diagnostics (OBD).
- Components marked with * are tested via On Board Diagnostic (OBD), Diagnostic mode 3: Check DTC memory.
- During some checks it is possible that the control module will detect and store a malfunction. Therefore the following work steps must be performed in the mentioned sequence after ending all tests and repairs.
- Check DTC memory
- Erase DTC memory → Diagnostic Mode 04 - Erase DTC Memory , Diagnostic mode 4: Reset/erase diagnostic data,
- For completion, generate readiness code → Readiness Code, Generating .