Cell Phone, CPT 7000 - Discharged Vehicle Battery

GROUP 84
Phone, Navigation Systems

84 14 00

Woodcliff Lake, NJ
May 2001
Service Engineering

This Service Information bulletin supersedes S.I. 84 14 00 dated December 2000.

SUBJECT
E38, E39, E53, E52 with CPT 7000 Phone; Vehicle Battery Discharged

MODEL
E38 (7 Series), E39 (5 Series), E53 (X5), E52 (Z8)
with BMW CPT 7000 Phone and Compensator

SITUATION
The Compensator can intermittently stay active with approximately 420 mA of current draw on some vehicles equipped with a BMW Digital CPT 7000 Phone (with a Compensator), after the ignition is turned OFF. This can result in a discharged battery when the vehicle is parked for an extended period of time (overnight).

CAUSE
CPT 7000 Phone does not provide sufficient electrical load to turn off the compensator.

CORRECTION
On a customer complaint basis;

1. Make sure that CPT 7000 phone handset is connected to the vehicle.

2. On the affected vehicle perform closed circuit current measurement using adapter 61 2 300 (PN 90 88 6 612 300). For detailed procedure refer to Service Information Bulletin 61 08 00 from 08/00 ("Closed Circuit Current Measurement").

3. If a constant current draw of approximately 400 mA is detected after vehicle goes into the "sleep mode", disconnect phone Compensator at connection X1765 (black, 3-pin). (Compensator is located: in the left rear trunk corner on E38/E39/E53 vehicles, or behind the driver's seat in the CD changer storage box in E52 vehicles).

4. If the current draw is reduced to the acceptable level (between 30 and 50 mA), after X1765 is disconnected then install the "Compensator adapter harness" (PN 84 11 0 138 904) between the connector X1765 and compensator.





PARTS INFORMATION





WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.





DISCLAIMER