8/23/25, 4:51 AM

52 11 25_INCREASED NOISE WHEN TURNING OFF SEAT VENTILATION

SIB 52 11 25
INCREASED NOISE WHEN TURNING OFF SEAT VENTILATION
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2025-08-21

THIS REPAIR IS MOBILE FRIENDLY
THIS REPAIR IS REMOTE SOFTWARE UPGRADE (RSU) FRIENDLY

MODEL
E-Series
G14
G15
G16

Model Description
8 Series Convertible
8 Series Coupe
8 Series Gran Coupe

Affected Option Code
All with 0453 Front active seat ventilation

SITUATION
If the seat ventilation is deactivated via the switch or due to parking the vehicle, the fans in the seat cushion
or under the seat cushion surface are unpleasantly loud.
The fans speed up loudly twice and then turn off. The functionality of the fans is not impaired.
This behavior only occurs after the vehicle had been programmed to I level S18A-25-07-520 and higher; up
to, but not including S18A-25-07-551.

CAUSE
Unfavorable software in the seat module.

CORRECTION
Program the vehicle to I level S18A-25-07-551 or higher.

PROCEDURE
Determine the vehicle’s current I-level by either using AIR or the ISPA Next/AWP (Aftersales Workplace)
applications.
1. Is the current vehicle I-level lower than:
Model
Target integration level
G14, G15, G16
S18A-25-07-551
YES: Proceed to Step 2
NO: Continue diagnosis with ISTA.
2. Program the vehicle using ISTA 4.55.3 (planned to be released Sept 15, 2025, pending verification).
Model
Target integration level
G14, G15, G16
S18A-25-07-551 or higher
After the programming has been fully completed, check the functionality of the system.
Note: ISTA will automatically reprogram and code all programmable control modules that do not have the
latest software.
Always connect a BMW-approved battery charger/power supply (SI B04 23 10).
For information on programming and coding with ISTA, refer to TIS / Technical Documentation / Diagnostics
and Programming / Programming Documentation.

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PARTS INFORMATION
Parts replacement is not necessary and does not provide a remedy.

CLAIM INFORMATION
Vehicle Programming and Encoding
During this workshop visit, the affected vehicle may also show one or more programming and encoding Technical Campaign
repairs open, the programming and encoding procedure may only be invoiced one time.
Select one of these open Technical Campaigns instead to perform and submit for updating the vehicle to the
required I-level, or higher when applicable (Includes labor operation codes 00 00 006/556, 61 21 528 and 61 00 730).
Please be sure to also perform any additional before and/or after work (including attaching labels) as required by
the open campaigns on the vehicle. Close any remaining open programming and encoding Campaign repairs as
outlined in the corresponding Service Information Bulletin.

Only when the above does not apply, the BMW software solution is then covered under the terms of the
BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks, or the BMW Certified Pre-Owned
Program as described below.
Repair Code:

6135691500

Seat module / seat control unit (incl. holder) Permanent
malfunction

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

Labor
Operation
00 00 006

Description

Labor Allowance

Carrying out vehicle test (Main work)

As applicable

Carrying out vehicle test (Plusposition work)

As applicable

Supporting voltage of the vehicle electrical system /
recharging vehicle battery

As applicable

Carrying out vehicle diagnosis, ABL (Work time)

WT FRU

Diagnosis Worktime Flat Rate

2 FRU

Program/encode control unit(s), includes deleting the fault
memory

As applicable

Or:
00 00 556
And:
61 21 528
And, as needed:
61 00 006*
Or:
00 58 500*
And:
61 00 730

If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556 instead of
00 00 006, or exclude them (including 61 21 528) when the Vehicle Test is included in another repair.
Work time labor operation codes 61 00 006 and 00 58 500 are not considered Main labor operations.
Vehicle Programming and Encoding – Additional Work (RO and Claim Comments Required)

This procedure automatically reprograms and encodes any vehicle control modules that do not have the latest
software I-level.
If one or more control modules fail during the reprogramming procedure, claim the required consequential repair
work procedures to address this issue
(including
performing
IRAP Control
UnitInc.
Recovery first as required, refer
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©2025
BMW the
of North
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52 11 25_INCREASED NOISE WHEN TURNING OFF SEAT VENTILATION

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 20for 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.

Other Repairs (The vehicle’s I Level is not between S18A-25-07-520, and higher to, but not including
S18A-25-07-551 or higher)
If other eligible and covered work is performed because of performing the ISTA diagnostics, related test
plans, and/or other approved diagnosis procedures, claim this work with the applicable 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.
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 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.

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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