2003 BMW X5 Radio view

Initial Print Date:10/3/00Revision Date:9/29/00
Subject Page
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Overview of the Radios for Each Model. . . . . . . . . . . . . . . . . . . . . . . . . . .3
Functional Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
NG Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
MIR (E52). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Workshop Hints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Review Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table of Contents
“NEW GENERATION” (NG) RADIOS

2
NG Radios
“NEW GENERATION” (NG) RADIOS
Model: E39, E46, E52, E53
Production Date: Starting from 9/00
Objectives
After completing this module you should be able to:
• Recognize the new features of the “NG” radios.
 Identify the components that interact with the radio system.
 Describe the features of the MIR.
 Review how to access the radio service mode.

3
NG Radios
Introduction
Starting September 2000, a family of new generation radios will begin to be phased into
production. The exception to this is the E52 which has been available with the MIR (multi-
information radio) NG radio since series launch in mid 2000.
The NG “New Generation” radios will have increased functions:
 Radio can be operated without KL R.
 Radios are world frequency.
 Car memory programming.
 Audio mixing on vehicles equipped with navigation.
The radios external appearance has not changed. NG radios can be identified by their “53”
designation.
Overview of the Radios for Each Model
RADIO TYPE MANUFACTURER MODEL INTRODUCTION
DATE
C53 Business with
cassette
Philips E46 3/01
CD53 Business with in-
dash CD
Alpine E46 3/01

C53 Business with
MID control and
cassette
Phillips E39/E53 9/00 E39
10/00 E53
CD53 Business with
MID control and
in-dash CD
Alpine E39/E53 9/00 E39
10/00 E53
C53 Business MIR
without cassette
VDO E52 Start of production
BM53 Business with
BM control
Becker E46/E39/E53 03/01 E46
02/01 E39
04/01 E53

4
NG Radios
NG Radio System Overview
Example: E39 with MK III navigation and BMBT
SRS
AIRBAGSRS
AIRBAG
BMW
POWERGPSNAVIGATION SYSTEM
13.07.2000Thursday10 : 17
INFO
1
4
25
36
FM AMMODEMENUTONE SELECT
KL 30
KL 31
KL R
KL 58g
BM53
AM
FM 1
FM 2
FM 3
RF Cable
"RAD ON"
signal
CD CHANGERRGBMFL
BMBT MK III NAV.
T
A
P
E
DSP AMP
FROM
UNLOADER
RELAY
DIGITAL OUTPUT
DIVERSITY
ANTENNA/
FZV RECEIVER
I-BUS
SPEAKERS
NAV
AUDIO
0½
CHECK
ENGINECHECK
ENGINEOIL SERVICEOILSERVICEINSPECTIONP
1/min
x 1000
km/hELECTRONICMPH1
2020404060608080100180160140 1201002001202201402400234
5
6
7!!ABS20 DIGIT READOUT123456PRND SM
54321122 4720Fmiles0
10
15 20 40+
IKE
K-BUS
GENERAL MODULE
KE
YUSE
D
LCM III
BMW
StarTAC
TELEPHONE
WITH INTERFACE
MUTE SIGNAL
SPEAKER OUTPUT
TO AMPLIFIER
HANDSFREEAUDIOOUTPUT

5
NG Radios
Functional Overview
NG Radios
Radio Operation with KL R off
Operation is possible with the key off on the C53 and CD 53 radios. If the radio is turned
on with KL R off, it will play at the last stored volume and settings for 16 minutes until the
General Module sends the sleep command. No changes may be made to the radio unless
KL R is switched back on. The radio can be turned on and off as many times desired.
Diversity Antenna
Antenna diversity has been adapted to the new generation of radios. When the radio is in
operation, the diversity control unit is activated by the “RAD ON” signal.
World Frequency Radio
Radios on vehicles sold in the U.S. are world radios. Specific country settings can be made
using the service mode. The settings are stored in an EEPROM.
Car Memory
If programmed, when locking the vehicle using the remote transmitter the:
 last station
 Volume setting
 Last audio mode (Tape, FM, CD etc.)
are stored according to the key number used. Unlocking the vehicle with the same
transmitter will restore the settings. There is a maximum setting for volume which may be
lower than the setting when the radio was last operated.
Clock
Time can also be displayed when KL R is off by pressing the clock button on the
Radio/MID.
Backlighting
The LCM/LSZ produces two signals for the control of radio backlighting.
 Hardwired KL 58g
 Lights on/off over the K/I Bus.
The radio contains a photo-cell for adjustment of backlighting to ambient conditions.

10
NG Radios
Review Questions
1. How can the “NG” radio be distinguished from an earlier radio?
2. Which was the first “NG” radio to be used in a production vehicle?
3. Discuss the most significant features that “NG” radios will offer.
4. How might the audio system react if the vehicle alternator is producing over 17 Volts?