Safety Recall 20V‐761 48‐Volt Battery Connections – 2021 BMW

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December 9, 2020 NHTSA CAMPAIGN NUMBER: 20V761000

48V Battery Connection Misassembled

Increased electrical resistance can increase the risk of a fire.

 

NHTSA Campaign Number: 20V761

Manufacturer BMW of North America, LLC

Components ELECTRICAL SYSTEM

Potential Number of Units Affected 812

 

Summary

BMW of North America, LLC (BMW) is recalling certain 2021 M340i xDrive, M440i xDrive Coupe, 530i, 530i xDrive, 540i, 540i xDrive, 740Li, 740Li xDrive, 840i Gran Coupe, 840i xDrive Gran Coupe, X5 sDrive40i, X5 xDrive40i, X6 sDrive40i, X6 xDrive40i, and X7 xDrive40i vehicles. The connection between the 48-Volt battery and the starter-generator may not have been assembled properly, which can cause increased electrical resistance at the connections.

 

Remedy

BMW will notify owners, and dealers will inspect the connection between the 48-Volt battery and the starter-generator assembly, replacing it if necessary, free of charge. The recall is expected to begin April 12, 2021. Owners may contact BMW customer service at 1-800-525-7417.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your BMW has a Recall

 


SIB 12 01 21
2021-03-15

RECALL 20V-761: CHECK 48 V CABLE CONNECTIONS ON STARTER GENERATOR (SGR)

This Service Information Bulletin (Revision 2) replaces SI B12 01 21 dated February 2021.

 

What’s New (Specific text highlighted):

  • Assigned Recall Number

 

Please perform the procedure outlined in this Service Information on all affected vehicles before customer delivery. In the event the customer has already taken delivery of the vehicle, please perform the procedure the next time the vehicle is in the shop.

 

MODEL

E-Series Model Description Production Date
G01 X3 Sports Activity Vehicle November 16, 2020 – November 30, 2020
G02 X4 Sports Activity Coupe November 21, 2020
G05 X5 Sports Activity Vehicle September 30, 2020 – January 13, 2021
G06 X6 Sports Activity Coupe October 2, 2020 – December 1, 2020
G07 X7 Sports Activity Vehicle October 1, 2020 – January 11, 2021
G30 5 Series Sedan September 9, 2020

 

AFFECTED VEHICLES

Vehicles which require this Recall Campaign to be completed will show it as “Open” when checked either in AIR, the “Service Menu” of DCSnet (Dealer Communication System), ISPA Next or Warranty Vehicle Inquiry.

 

SITUATION

BMW AG is conducting a Voluntary Safety Recall (effective February 12, 2021) on a small number of Model Year 2021 BMW vehicles that were produced between September 9, 2020 and January 13, 2021.

This is an expansion of recall 20V-761 that was launched in early December 2020.

The 48-Volt battery cable connections to the starter / generator (SGR) may not have been assembled to specifications.  Over time, this could lead to increased resistance at the connection(s) and, in rare cases, a thermal event.

 

CORRECTION

Check the M8 flange nuts and cable connections on the SGR. If necessary, replace the flange nut and torque to spec.

 

PROCEDURE

Check the positive (1) and negative (2) cables for play at the mounting lugs on the SGR.

If the connections are tight and the cables cannot be moved by hand–  No further action is necessary

If there is play in the connection to the SGR –

Deactivate the 48 V electrical system (Repair instruction REP-TAT-P-6124-18-B47_48V)

Remove and discard the flange nut on the B+ or B- cable

Install a new flange nut so that it’s carefully started by hand to avoid cross-threading Torque to 19 Nm

 

PARTS INFORMATION

Only use and invoice the part numbers below that apply.

Performing a part number look-up in ETK (EPC) by VIN or model in place of using/invoicing the following part numbers may result with the wrong part numbers being invoiced and installed, this could delay the payment of the claim.

Part Number Description Quantity
07 14 3413174 Flange nut (rounds to 10) Up to 2

 


 

Safety Recall 20V‐761
48‐Volt Battery Connections Model Year
2021
Various BMW Models
Issue Date: 12/03/2020
Last Update: 12/03/2020

 

Q1. Which BMW Group models in the US are potentially affected by this Safety Recall?

Certain vehicles equipped with a 48‐Volt battery, specifically Model Year 2021 BMW 3 Series, 4 Series Coupe, 5 Series, 7 Series, 8 Series Gran Coupe, X5 SAV, X6 SAC, and X7 SAV models in the US, produced between June and October 2020, are potentially affected.

 

Q2. What is the specific issue?

The 48‐Volt battery cable connections to the starter / generator may not have been assembled to specifications.  Over time, this could lead to increased resistance at the connection(s) and, in rare cases, a thermal event.

 

Q3. Why are other models / vehicles not included in this Safety Recall?

Other models have been assembled to specifications.

 

Q4. Can I continue to drive my vehicle?

Yes.  If you are not the only driver of this vehicle, please advise all other drivers of this important information.

 

Q5. How did BMW Group become aware of the issue?

BMW Group became aware of the issue through our quality control procedures.

 

Q6. How will I be informed of this Safety Recall?

Letters will be mailed to owners in January via First Class mail advising them of this Safety Recall.

To ensure BMW has the most recent contact and vehicle information, owners should register their vehicle at www.bmwusa.com/myBMW.  Registration is free and will give them access to factory initiated campaigns and other information specific to their BMW.

 

Q7. How will my vehicle be repaired?

The 48 Volt battery connections will be inspected and, if necessary, replaced.

 


20V-761
Amendment
Additional Chronology

 

The field continue to be monitored.  In December 2020, two more incidents were reported.

 

Inspections of these incidents / vehicles showed characteristics that were similar to previously inspected vehicles in which the 48-Volt battery positive cable connection to the starter-generator was suspect.  The fastening nut did not appear to be seated properly on the starter-generator assembly’s bolt.

 

Further reviews of vehicle manufacturing records indicated that the two incident vehicles had been sent to an assembly plant rework station, as had vehicles which were identified and were previously reported.  Upon further review, it has been determined that a number of additional vehicles were subject to a rework process in which the 48-Volt battery positive cable connection to the starter-generator was suspect.

 

On February 10, 2021, BMW decided to conduct a voluntary safety recall.

 

BMW has not received any reports, nor is otherwise aware, of any accidents or injuries related to this issue.

 


 


9 Affected Products

Vehicles

MAKE MODEL YEAR
BMW 530I 2021
BMW 540I 2021
BMW 740LI 2021
BMW 840I 2021
BMW M340I 2021
BMW M440I 2021
BMW X5 2021
BMW X6 2021
BMW X7 2021

 


18 Associated Documents

ISSUED Owner Notification Letter(Part 577)

RCONL-20V761-0094.pdf 634.982KB

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Recall Quarterly Report #1, 2020-4

RCLQRT-20V761-1068.PDF 211.129KB

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RCMN 20V761 – Dealer Message re BMW Safety Recall: 48-Volt Battery Connections

RCMN-20V761-3933.pdf 102.022KB

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Miscellaneous Document – 20V-761 Amendment Additional Chronology

RMISC-20V761-0310.pdf 46.505KB

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Remedy Instructions and TSB – Service Information Bulletin re RECALL: CHECK 48 V CABLE CONNECTIONS ON STARTER GENERATOR (SGR) 2021-02-19 – This Service Information Bulletin (Revision 1) replaces SI B12 01 21 dated February 2021

RCRIT-20V761-7409.pdf 230.234KB

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Manufacturer Notices(to Dealers,etc) – Dealer Notification re BMW Recall 20V-761: 48-Volt Battery Connections – UPDATE

RCMN-20V761-2286.pdf 16.139KB

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Recall Quarterly Report #3, 2021-2

RCLQRT-20V761-3233.PDF 211.311KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-20V761-7255.pdf 648.835KB

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Remedy Instructions and TSB – Remedy Instructions re SIB 12 01 21 RECALL 20V-761: CHECK 48 V CABLE CONNECTIONS ON STARTER GENERATOR (SGR)

RCRIT-20V761-0393.pdf 230.833KB

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Defect Notice 573 Report

RCLRPT-20V761-8478.PDF 219.993KB

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Recall Acknowledgement

RCAK-20V761-2772.pdf 244.101KB

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Remedy Instructions and TSB – Dealer Notification re Safety Recall 20V‐761 48‐Volt Battery Connections Model Year 2021

RCRIT-20V761-1656.pdf 324.905KB

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Manufacturer Notices(to Dealers,etc) – Dealer Notification re BMW Recall 20V-xxx: 48-Volt Battery Connections

RCMN-20V761-9373.pdf 137.714KB

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Remedy Instructions and TSB – Service Information Bulletin re RECALL 20V-761: CHECK 48 V CABLE CONNECTIONS TO THE STARTER GENERATOR (SGR)

RCRIT-20V761-2470.pdf 325.332KB

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Remedy Instructions and TSB – Remedy Instructions re RECALL 20V-761: CHECK 48 V CABLE CONNECTIONS TO THE STARTER GENERATOR (SGR)

RCRIT-20V761-4443.pdf 326.741KB

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Recall 573 Report

RCLRPT-20V761-6088.PDF 221.577KB

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Recall Quarterly Report #2, 2021-1

RCLQRT-20V761-7850.PDF 211.225KB

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Recall Quarterly Report #4, 2021-3

RCLQRT-20V761-1156.PDF 211.415KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=20V761&docType=RCL

 


 

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