Audio - Radio Won't Mute With Cell Phone In Use

Group 65
Radio and Accessories



Bulletin Number
65 01 91 (3204)



Woodcliff Lake, NJ
May 1991
Service Engineering



SUBJECT:
Radio Will Not Mute with Cellular Telephone in Use

MODELS:
All 5 Series (E34) and 7 Series (E32), Equipped with CMT 100A and CMT 300 Cellular Telephones with Mute Module (P/N 99 99 9 737 776)

Situation:
Unintentional ground signal to mute module, due to transceiver mounting bracket clips rubbing through painted surface of transceiver housing.

Remedy:
Isolate the transceiver mounting bracket from the vehicle chassis by using nylon mounting screws and spacers, P/N 99 99 9 737 777.

If you encounter this situation on a pre-installed transceiver mounting bracket, the bracket must be remounted using the insulation hardware package (P/N 99 99 9 737 777). This package contains installation instructions and will be provided on a no-cost basis.

Mute module kits are presently being packaged with the insulation hardware package and updated installation instructions.

Warranty Status:
Covered under the terms of the BMW New Car Limited Warranty of 4 Years/50,000 Miles.

Defect code:
65 61 01 79 AQ

Labor operation:
65 99 000
(remounting transceiver mounting bracket)

Labor allowance:
3 FRU

Any questions regarding warranty coverage should be discussed with your District Service Manager.



IMPORTANT



(1) Transceiver bracket must be installed using (4) insulated nylon screws and washers as shown. Do not use metal screws.





(2) If bracket has been pre-installed, it must be removed and secured as shown using nylon screws and washers.