Audio System - Radio Inoperable With Ignition OFF
GROUP 65Sound System, Cruise, Alarms, Monitors
65 09 01
Woodcliff Lake, NJ
Service Engineering
December 2001
SUBJECT
E39/E53 with NG CD53 MID Radio: Radio Inoperable with Ignition OFF
MODEL
E39, 5 Series produced 09/00 - 04/01 E53, X5 produced 10/00 - 04101
SITUATION
Customer may complain of the following radio conditions:
1. After ignition has been switched OFF, radio can not be turned ON by pressing the on/off switch (no MID display). However, radio is fully operable (sound and display) if the "AUDIO" button on the MID is pressed within 70 seconds after the ignition has been turned OFF.
2. After ignition has been switched OFF for longer then 70 seconds, radio can be turned ON only by pressing the "AUDIO" button on MID twice.
Radio operates correctly, when ignition is position KL R, or KL 15 (accessories or ignition ON).
CAUSE
Complaint 1:
Software error in BMW New Generation CD53 MID radio
Complaint 2:
Software error in MID.
CORRECTION
Complaint 1:
On a customer complaint basis only, replace CD53 radio with an improved unit
P/N 65 12 8 387 323. For replacement procedure refer to TIS repair instruction RA 65 11 030.
Complaint 2:
On a customer complaint basis only, replace MID using a unit with improved software (SW 21.0). For replacement procedure refer to TIS repair instruction RA 6581 010
PARTS INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
INFORMATION