6/30/25, 9:42 AM

65 13 25_CONVERSION REQUIRED WITH CENTRAL BASS SPEAKER REPLACEMENT

SIB 65 13 25
CONVERSION REQUIRED WITH CENTRAL BASS SPEAKER
REPLACEMENT

2025-06-16

MODEL
E-Series

Model Description

Production Date

G45

X3 Sports Activity Vehicle

From 8/2024 to 12/2024

Affected Option Code
SA 688 – Harman Kardon
Surround Sound System

SITUATION
In certain situations, a newly installed central woofer(s) (bass speaker) will not function.

CAUSE
The replacement central woofer (bass speaker) is redesigned, a vehicle programming conversion procedure
is required for correct operation.

CORRECTION
For these vehicles, when a central woofer (bass speaker) replacement is required, replace both speakers
and perform the “Conversion of Central Bass” procedure in ISTA.

PROCEDURE
The sound output of the first-generation central woofers (PN 65 13 5 A70 783) was redesigned, and only the
new version of these speakers is available for replacement through ETK. The new version and the older
version (PN 65 13 5 A70 783) CANNOT be mixed. If one central woofer must be exchanged with the
updated speaker, the other central woofer must be inspected AND, if also a first-generation central woofer
(PN 65 13 5 A70 783), must be replaced.
Unfortunately, due to this hardware change, the original sound processing in the Receiver Audio Module
(RAM02) is unable to actuate the redesigned central woofers (bass speakers).
A programming conversion needs to be performed in the vehicle with ISTA to add the K-word “LSTZ” to the
Vehicle Order. This changes the sound output profile in the RAM02 and allows for correct operation of the
new central woofers (bass speakers).
This only affects early generation vehicles produced up to and including December 2024. In case one central woofer
(bass speaker) needs to be replaced in an early vehicle, both central woofers (bass speakers) will need to be
replaced with the updated parts. Old style and new style central woofers (bass speakers) cannot be mixed in the
vehicle.
Once the speakers have been replaced, the coding of the RAM02 will need to be modified by the addition of the K-word
“LSTZ”. This conversion can be found using the following path:

Vehicle Management
Vehicle Modification
Conversion
“Conversion of Central Bass”

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65 13 25_CONVERSION REQUIRED WITH CENTRAL BASS SPEAKER REPLACEMENT

ISTA will automatically reprogram and code all programmable control modules that do not have the latest
software.
Connect the battery charger to the vehicle
Connect the programming system to the vehicle (ISTA 4)
Select “Conversion of Central Bass”
Determine measures plan
Accept and fully work through the measures plan with the control units to be programmed/encoded and
enabled
Follow the rework list
Depending on the rework list, carry out a vehicle test and delete the fault memory if needed
After the programming has been fully completed, check functionality of the system.
Always connect a BMW-approved battery charger/power supply (SIB 04 23 10).
For information on programming and coding with ISTA, refer to Dealer Universal Portal / TIS / Technical
Documentation / Diagnostics and Programming / Programming Documentation.

PARTS INFORMATION
When applicable, to determine the part number that applies to the specific vehicle being repaired, enter the
VIN/chassis number into either Copyright
ETK or AIR,
this will
consider
the specific
equipment
and/or options that are
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65 13 25_CONVERSION REQUIRED WITH CENTRAL BASS SPEAKER REPLACEMENT

fitted to the vehicle.
Part Number
65 13 5 B5B 1B2

Description
Central woofer (ALEV 3)

Quantity
2

CLAIM INFORMATION
When required, in conjunction with an applicable covered Central Woofer replacement repair under the terms of the BMW
New Vehicle Limited Warranty for Passenger Cars and Light Trucks or the BMW Certified Pre-Owned Program.

Repair Code:

Refer to AIR / SIB

Claim with the submission of the Central Woofer replacement
repair that required the “Conversion of Central Bass”
procedure to be performed.

Obtain the flat rate unit (FRU) allowances for the following that applies.

Labor Operation
65 13 210
Or:
65 13 710

Description
Removing and installing/replacing subwoofer (Main work)

Labor Allowance
As applicable

Removing and installing/replacing subwoofer (Plus work)

As applicable

If you are using a Main labor code for another repair, use the Plus code labor operation 65 13 710 instead of
65 13 210.
And:
Vehicles without an Open Programming and Encoding Technical Campaign and similar Repair
Labor Operation
00 00 006**
Or:
00 00 556**
And:
61 21 528**

Description
Carrying out vehicle test (Main work)

Labor Allowance
As applicable

Carrying out vehicle test (Plus work)

As applicable

Supporting voltage of the vehicle electrical system /
recharging vehicle battery

As applicable

Only one Main labor operation code can be claimed per workshop visit.
And/or:
Labor Operation

Description

61 00 730**

Programming/encoding control unit(s)

Labor Allowance
As applicable

(**) Only when these work procedures are not included in another repair during the same workshop visit.
Note: The Diagnosis Worktime Flat Rate (00 58 500) does not apply to this Conversion procedure.
BMW Group’s AIR Application Resource for Flat Rate Labor Operation Codes
To obtain the corresponding flat rate unit (FRU) allowance information from the BMW Group AIR application
resource, start by entering the Chassis Number (last seven (7) characters of the VIN), and click on the
“Search” icon. If the “Vehicle Selection” window displays two or more model possible vehicle choices, select
the applicable Model, or enter the full VIN (17 characters) instead to proceed. Click on the “Flat Rate Units”
button and enter a flat rate labor operation code number “without spaces” in the field to the right, click on the
“Search” icon to display the corresponding listing of “Flat rate unit group details” that are available and their
corresponding FRU allowances.

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©2025
of North
America, Inc.
Vehicle Programming and Encoding
– Additional
WorkBMW
(RO and
Claim Comments
Required)
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This procedure automatically reprograms and encodes any vehicle control modules that do not have the latest software Ilevel.

If one or more control modules fail during the reprogramming procedure, claim the required consequential
repair work procedures to address this issue (including performing the IRAP Control Unit Recovery first as
required, refer to the SIB in AIR) under the Repair Code in this bulletin together with the corresponding labor
operation codes and their flat rate unit (FRU) allowance(s), including the diagnosis* that applies.
Please explain the additional work procedures that were performed (The why and the what) on the repair order and in the
claim comments.

For covered repairs that address control module failures that occurred prior to performing this
reprogramming procedure, claim this work with the appliable Repair Code listed in AIR together with the
corresponding labor operation codes and their flat rate unit (FRU) allowance(s), including the diagnosis* that
applies.
(*) Based on which one applies to your center, please refer to SI B01 01 20 or B01 07 20 for the applicable procedure for
documenting, claiming, and explaining, on the RO and in the claim comments, your diagnosis work time (WT), job/repair
work time (WT), and the vehicle repairs your center performed, unless otherwise required by State law.

FEEDBACK REGARDING THIS BULLETIN
Technical Feedback
Warranty Feedback
Parts Feedback

To submit feedback for the technical topic of this bulletin: Submit your
feedback in the rating box at the top of this bulletin
To submit feedback for the CLAIMS section of this bulletin: Submit an IDS
ticket to the Warranty Department, or use the chat available in the
Warranty Documentation Portal
To submit feedback for the PARTS section of this bulletin: Submit an IDS
ticket to the Parts Department

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