A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
Intake Air Control Valve: All Technical Service Bulletins
Engine - MIL ON/DTC 0299 Set
21 07 02
June 4, 2007
2013060/4
Supersedes Technical Service Bulletin Group 21 number 07-01 dated May 21, 2007 due to correction of a typo in a DTC code.
Models
MIL on (P0299 - charge pressure control negative deviation)
Condition
MIL on. DTC P0299 (Charge pressure control, negative deviation) is stored in the ECM data memory.
Technical Background
The condition may be the result of an abnormal Turbocharger Recirculation Valve N249.
Production Solution
Improved production.
Service
1.
Remove the Turbocharger Recirculation Valve from the Turbocharger Housing and visually inspect the rubber membrane for lacerations.
2.
If the membrane is lacerated (Figure 1) replace the Turbocharger Recirculation Valve N249.