A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
/Page-2413001.png)
Accessory Control Display: Customer Interest
MMI(R) - Cracking Noises/Audio Drpout/System Inoperative
91 MMI: Sporadic cracking noises, audio dropouts or completely inoperative
91 10 56
2015528/8
August 23, 2010
Supersedes Technical Service Bulletin Group 91 number 09-33 dated April 14, 2009 for reasons listed below.
AFFECTED VEHICLES
CONDITION
^ Sporadic cracking noises or audio dropouts in all audio sources.
^ Complete failure of the MMI system - frozen or blank screen.
Tip: Multimedia Control Head E380 is ruled out as the root cause.
TECHNICAL BACKGROUND
A MOST component causes interruptions of the optical data communication. One of the components shown above may be the most likely root cause of
this condition.
