B720321

6/3/2021
72 03 21_M5 CS PRECRASH SAFETY BELT TENSIONING TRIGGERS PREMATURELY IN CERTAIN SITUATIONS
SIB 72 03 21
M5 CS PRECRASH SAFETY BELT TENSIONING TRIGGERS
PREMATURELY IN CERTAIN SITUATIONS
2021-05-12
MODEL
E-Series
Model
Description
Production Date
Affected Option Code
F90
M5 CS Sedan
SOP (March 2021)
Vehicles equipped with option SA5AL
Active Protection
SITUATION
In certain situations, when the vehicle is being driven more dynamically and repeated heavy braking may be
required, the Precrash Safety Belt tightening application may activate even though there is no presence of a
hazardous situation.
CAUSE
The passive safety application 'Precrash' in the Airbag Control unit (ACSM - advanced crash- and safety
management) is prematurely triggered by the heavy brake application event.
CORRECTION
Encode the ACSM using ISTA 4.29.2x or higher.
This software will be released May 12, 2021
PROCEDURE
1. Determine the vehicle’s current I-level by either using AIR or the ISPA NEXT application. If needed, use
the latest ISTA to work through test modules.
2. Is the current vehicle integration level:
Model
Integration level
F90
Lower than S15A-21-03-550
YES: Proceed to Step 3
NO: Further diagnosis with ISTA is needed. Work thru the corresponding test module if necessary.
3. Program the vehicle using ISTA 4.29.2x or higher.
Model
F90
Target integration level
S15A-21-03-550 or higher
Model
F90
Target integration level
S15A-21-03-550 or higher
Note that 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) when performing
programming.
For information on programming and coding with ISTA, refer to CenterNet / TIS / Technical Documentation /
Programming and Diagnostics / Programming Documentation.
Copyright ©2021 BMW of North America, Inc.
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72 03 21_M5 CS PRECRASH SAFETY BELT TENSIONING TRIGGERS PREMATURELY IN CERTAIN SITUATIONS
PARTS INFORMATION
Parts exchange will not provide a solution.
WARRANTY INFORMATION
During this workshop visit, the affected vehicle may 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 to perform and submit for updating the vehicle’s
software to the required I-level or higher.
Please be sure to 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 if the above situation 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.
Defect Code:
--Labor
Operation
00 00 006
7211077900
Belt tensioner/belt buckle tensioner incorrect connection
/contact
Description
Labor Allowance
Performing vehicle test (with vehicle diagnosis system –
checking faults) (Main work)
Refer to AIR
Performing vehicle test (with vehicle diagnosis system –
checking faults) (Plus work)
Refer to AIR
Support voltage of the vehicle electrical system / recharge
vehicle electrical system battery
Refer to AIR
Programming/encoding control unit(s)
Refer to AIR
Or:
00 00 556
And:
61 21 528
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.
Refer to AIR for the corresponding flat rate unit (FRU) allowances.
Programming and Encoding - Vehicle Control Units (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 the IRAP Control Unit Recovery first as
required, refer to the SIB in AIR) under the Defect Code in this bulletin with the labor operations in AIR that
apply.
Please explain the additional work procedures that were performed (The why and the what) on the repair
order and in the claim comments.
Copyright ©2021 BMW of North America, Inc.
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72 03 21_M5 CS PRECRASH SAFETY BELT TENSIONING TRIGGERS PREMATURELY IN CERTAIN SITUATIONS
For covered repairs that address control module failures that occurred prior to performing this
reprogramming procedure, claim this work with the Defect Code and labor operations (including diagnosis)
in AIR that apply.
Based on which applies to your center, please refer to SI B01 01 20 or B01 07 20 for claiming your
diagnosis work time, job/repair work time, and for the RO/claim repair and work time explanation procedures
QUESTIONS REGARDING THIS BULLETIN
Technical inquiries
Warranty inquiries
Parts inquiries
Submit feedback at the top of this bulletin
Please contact the Warranty department by either using the Live Chat that’s
available in the Warranty Documentation Portal or through IDS by selecting
Coverage, Policy, Coding Questions and Mileage Corrections
Submit an IDS ticket to the Parts Department
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