2010 BMW M6 Convertible (E64) V10-5.0L (S85)DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

2010 BMW M6 Convertible (E64) V10-5.0L (S85) Page 72

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

Audio System/Instruments - Various System Complaints

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 95

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 535xi Wagon AWD (E61) L6-3.0L Turbo (N54) DIAGNOSIS AND REPAIR, MAINTENANCE,Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

2010 BMW 535xi Wagon AWD (E61) L6-3.0L Turbo (N54) Page 180

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 128i Convertible (E88) L6-3.0L (N51) DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

2010 BMW 128i Convertible (E88) L6-3.0L (N51) Page 107

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 135i Convertible (E88) L6-3.0L Turbo (N54)DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

2010 BMW 135i Convertible (E88) L6-3.0L Turbo (N54) Page 107

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW M3 Sedan (E90) V8-4.0L (S65) DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

2010 BMW M3 Sedan (E90) V8-4.0L (S65) Page 79

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 750i xDrive AWD (F01) V8-4.4L Turbo (N63) DIAGNOSIS AND REPAIR, MAINTENANCE,Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

2010 BMW 750i xDrive AWD (F01) V8-4.4L Turbo (N63) Page 122

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

BMW 528i (E60) L6-3.0L (N52K) Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

2010 BMW 528i (E60) L6-3.0L (N52K) Page 92

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 328Cic Convertible (E93) L6-3.0L (N52K) DIAGNOSIS AND REPAIR, MAINTENANCE, DIAGNOSIS AND Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

2010 BMW 328Cic Convertible (E93) L6-3.0L (N52K) Page 92

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 750i (F01) V8-4.4L Turbo (N63)DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

2010 BMW 750i (F01) V8-4.4L Turbo (N63) Page 122

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW M3 Coupe (E92) V8-4.0L (S65) DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

2010 BMW M3 Coupe (E92) V8-4.0L (S65) Page 81

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 760Li (F02) V12-6.0L Turbo (N74) DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

2010 BMW 760Li (F02) V12-6.0L Turbo (N74) Page 114

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 750Li xDrive AWD (F02) V8-4.4L Turbo (N63)DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

2010 BMW 750Li xDrive AWD (F02) V8-4.4L Turbo (N63) Page 122

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW M3 Convertible (E93) V8-4.0L (S65) DIAGNOSIS AND REPAIR, MAINTENANCE,Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

2010 BMW M3 Convertible (E93) V8-4.0L (S65) Page 77

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) DIAGNOSIS AND REPAIR, MAINTENANCE,Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

2010 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 86

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW M5 (E60) V10-5.0L (S85)DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

2010 BMW M5 (E60) V10-5.0L (S85) Page 72

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.

2010 BMW 650i Convertible (E64) V8-4.8L (N62TU) DIAGNOSIS AND REPAIR, MAINTENANCE, Technical Service Bulletin # 611502 Date: 111101

Audio System/Instruments - Various System Complaints

SI B61 15 02

General Electrical Systems

November 2011

Technical Service

This Service Information bulletin supersedes SI B61 15 02 dated February 2006.

[NEW] designates changes to this revision

SUBJECT

MOST Bus Diagnosis

MODEL

All models equipped with a MOST Bus

SITUATION

The customer may complain of one or more of the following:

^ Crackling or popping sounds from all speakers

^ Loss of audio

^ The control display is constantly displaying the "BMW" banner

^ The iDrive controller is not responsive

^ The control display is blank, white or frozen on the current menu screen.

CAUSE

Possible causes include:

^ Control module power or ground failure

^ Fiber optic cable connection fault or improper radius

^ Faulty control module

2010 BMW 650i Convertible (E64) V8-4.8L (N62TU) Page 86

^ Dirty, scratched or defective navigation map disc.

^ [NEW] Control module over temperature.

[NEW] PROCEDURE

1. Diagnose all MOST (Media Oriented Systems Transport) Bus system-related faults stored, using ISTA (Integrated Service Technical

Application).

2. If no faults are stored, the "MOST System Analysis" test plan can be called up via the following path in ISTA; "Function structure / 03 Body /

Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

3. Control module over temperature faults can be diagnosed with test plan "MOST device; excess temperature switch off" found via the following

path in ISTA: "Function structure / 03 Body / Audio, Video, Telephone, Navigation (MOST combination) / MOST functions".

If a control module becomes too hot, the control module switches off for up to 10 minutes to protect internal components from damage. Furthermore,

the entire MOST Bus can switch off for 10 minutes. After the control module has cooled down, it regains function again. If the fault "Cutoff excess

temperature" is stored in the control module, the control module concerned and the head unit will store the fault. These faults are taken into

consideration by the test plan in ISTA.