MMI(R) - Menu 'Windows' Option Grayed Out

91 MMI Car Systems menu contains grayed-out "Windows" option

91 10 63

2019927/3

October 13, 2010

Supersedes Technical Service Bulletin Group 91 number 09-36 dated April 20, 2009 for reasons listed below.





AFFECTED VEHICLES





CONDITION





The customer may report that a grayed-out Windows option is displayed in the MMI Car Settings menu.

TECHNICAL BACKGROUND

During a Zug 864 - Software Update of the MMI system (with 4F0 998 961 Update CD bundle), Adaptation channel 18 is added in the 07- Display/operating unit.

The condition may also be present after replacing a MY 2009 07 - Display/control unit.

If a particular bit is set in Adaptation channel 18, Windows is displayed in the Car Settings menu. Since the option may not be available in this vehicle, it is inactive and grayed out.

PRODUCTION SOLUTION

Not applicable.

SERVICE

Follow the directions below to set bit 15 of Adaptation channel 18 in the 07 - Display/operating unit to 0.

1. Select Self diagnosis in the VAS scan tool to change the adaptation channel manually.

2. Select 07 - Display/operating unit.

3. Select the function Adaptation and enter Adaptation channel 18.

4. Subtract 32768 from the displayed value of Adaptation channel 18 and enter the new value in the same field.

(For example: 65000 (fictitious displayed value) - 32768 = 32232 (fictitious new value to enter).

5. Exit self diagnosis and disconnect the VAS scan tool.





6. Perform a MMI system reset (three-finger reset).





7. Verify that the Windows option disappeared.





WARRANTY

ADDITIONAL INFORMATION

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.