Front Spring Strut Failure – 2024 BMW R 1250RT, K 1600GT, K 1600GTL, & K 1600B Motorcycles

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February 29, 2024 NHTSA CAMPAIGN NUMBER: 24V165000

Front Spring Strut Failure

A loss of stability while riding can increase the risk of a crash.


NHTSA Campaign Number: 24V165

Manufacturer BMW of North America, LLC


Potential Number of Units Affected 191



BMW of North America, LLC (BMW) is recalling certain 2024 R 1250RT, K 1600GT, K 1600GTL, and K 1600B motorcycles. The front spring strut may contain an incorrectly manufactured proportional valve that can loosen, and result in strut failure and a loss of stability.



Dealers will inspect the strut production dates and replace the front spring struts as necessary, free of charge. Owner notification letters are expected to be mailed April 22, 2024. Owners may contact BMW customer service at 1-800-525-7417.



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


Check if your BMW Motorcycle has a Recall


SIB 33 03 24

RECALL 24V-165 Check Front Suspension Strut

This Service Information Bulletin replaces SIB 33 04 24 dated Feb 4th, 2024.


What’s New (Specific text highlighted):

  • Campaign Number 0033240000 for the K 1600’s and R 1250 RT was upgraded to a Recall.



Model Model Description Model Code
K52/11 R 1250 RT 0L03
K48 MU2 K 1600 GT 0F23
K48 MU2 K 1600 GTL 0F33
K61 MUE K 1600 B 0F63


The affected vehicles have been marked with campaign number 0000334700 in AIR.

In order to determine if a specific motorcycle is affected by this campaign, it will be necessary to verify the vehicle VIN in AIR (Aftersales Information Research). Based on the response of the system, either proceed with the repair or take no further action. Please note, open campaigns or vehicle stops may not appear in DCS Warranty Vehicle Inquiry or sales systems until 24-72 hours after they are announced, therefore AIR is always the recommended method for determining open campaigns and vehicle stops.



After close inspection it has been found there was an issue during production of the suspension strut that the proportional valve in the suspension strut may loosen over the course of the service life. This results in a loss of damping function.

Since 9/18/23, only vehicles without this fault pattern are produced in series.



For vehicles that have not yet been delivered, the Recall must be completed before vehicle handover.

For affected K 1600 models and the R 1250 RT, the front and rear ESA suspension strut must be checked and replaced, if necessary.


Production date 230814 to 230911:

Suspension strut must be replaced if any of these production dates are listed on the strut in the location shown in the above figure;

(230814 / 230815 / 230816 / 230817 / 230818 / 230819 / 230820 / 230821 / 230822 / 230823 / 230824 / 230825 / 230826 / 230827 / 230828 / 230829 / 230830 / 230831 / 230901 / 230902 / 230903 / 230904 / 230905 / 230906 / 230907 / 230908 / 230909 / 2309010 / 230911).


NOTE: None of the suspension struts before or after these production dates are affected.



Please be reminded that it is a violation of federal law (The Safety Act) for you to sell, lease or deliver any new motorcycle covered by this notification until the recall repair has been performed. This means that dealers may not legally deliver new motorcycles to consumers until they are fixed or use/sell replacement equipment/parts subject to this recall. Note also that substantial civil penalties apply to violations of the Safety Act. Also, you should not sell, lease or deliver any used motorcycles subject to a safety recall until the repair is completed. Please follow any special instructions that we provide to you for the return or disposition of recall parts.



Obtain and confirm the part numbers for your specific vehicle by entering the chassis number in ETK which takes into account specific equipment and/or options.

Additional parts like gaskets, hardware and chemicals may be required for the complete repair. R 1250 RT (K52 11): (If necessary)


Part number Replacing rear suspension strut

33 54 8 557 148 Rear ESA suspension strut QTY 1
07 11 9 908 207 Cheese head screw M12×75-10.9-MK QTY 1
46 51 7 688 995 Internal Torx screw M12×1.5-60-MK QTY 1
46 54 9 908 616 Cheese head screw QTY 6


Part number Replacing front suspension strut

31 48 9 899 967 Front ESA suspension strut QTY 1
31 48 9 444 029 Flat seal QTY 2
31 48 8 550 092 Cheese head screw with washer QTY 1
31 48 8 522 949 Fitted Screw QTY 1
13 53 7 700 797 O-Ring QTY 1


K1600 GT/GTL (K48 MU2) and K 1600 B (K61 MUE): (If necessary)

Part number Replacing rear suspension strut

33 54 8 552 065 Rear spring strut (K48 MU2) QTY 1
33 54 8 552 067 Rear spring strut (K61 MUE) QTY 1
07 12 9 905 658 ISA bolt M12x1.5×80 – MK QTY 5
07 12 9 908 527 Cheese head screw QTY 2
46 51 9 909 279 Cheese head screw M10x45-10.9-MK QTY 2
51 11 7 707 528 Oval-Head screw w/collar M5x10-A2-80-MK QTY 2
06 32 7 657 949 Bolt M5x16-A2-80-MK QTY 2
07 11 9 905 544 Hexagon nut, self-locking QTY 1


Part number Replacing front suspension strut

31 48 8 552 061 Front ESA suspension strut QTY 1
07 12 9 905 658 ISA bolt M12x1.5×80 – MK QTY 2
13 53 7 700 797 O-Ring QTY 1
07 12 9 905 270 ISA screw QTY 2 as needed
46 54 7 685 133 Oval-Head screw M6x30A2-80 QTY 1



Contrary to the repair instructions, the screws (part number 07 12 9 907 401) for securing the holder for the pressure modulator to the frame, do not need to be replaced to exchange the front suspension strut. The thread is simply cleaned and medium-strength screw locking agent (part number 83 19 2 210 339) is reapplied.


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Model Year 2024
BMW R 1250 RT, K 1600 GT / GTL / B
Front Spring Strut
29 Feb 2024

On September 14, 2023, BMW was informed by the supplier that during internal quality controls one spring strut was discovered where within the damper the valve post had become disconnected from the proportional valve.  An engineering investigation was initiated.

Preliminary information suggested an out-of-specification thread of the valve housing.  A review of the supply chain indicated that a limited number of suspect front and rear spring struts may have been delivered to BMW where the proportional valve of the damper was not produced to specifications.  No US motorcycles with potentially suspect struts had been released from the motorcycle assembly plant.

Between October and November, approximately 600 suspect spring struts were returned to the supplier from the motorcycle assembly plant for further analysis.  Further investigations, including a complete review of the supply chain, showed that, contrary to first suspected cause (out-of-specification thread of the valve housing), the material of the valve housing was not according to specification.

On December 7, 2023, BMW was informed by the supplier of their results.

Motorcycle assembly information and supplier delivery records were reviewed to establish the number of motorcycles that may have been assembled with potentially affected spring struts.

Between December and January, assessments were conducted regarding the loss of the damping function.  Initially, simulations and functional models for the front sprint strut were performed.  Further analyses and road tests were planned.

On January 8, 2024, the review of motorcycle assembly information and supplier delivery records, which was initiated in December, was completed.  On January 16, 2024, as a precaution, a delivery stop was issued to dealers, and on January 18, 2024, a service action was decided.

In February, the tests and analyses were completed.

On February 22, 2024, BMW decided to conduct a voluntary safety recall for motorcycles equipped with potentially affected front spring struts.

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


4 Affected Products


BMW K 1600 B 2024
BMW K 1600 GT 2024
BMW K 1600 GTL 2024
BMW R 1250 RT 2024


5 Associated Documents

Defect Notice 573 Report

RCLRPT-24V165-7780.PDF 215.122KB


Miscellaneous Document – Chronology

RMISC-24V165-2023.pdf 64.165KB

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Recall Acknowledgement

RCAK-24V165-3780.pdf 645.366KB


Remedy Instructions and TSB – Service Information Bulletin re RECALL 24V-165 Check Front Suspension Strut

RCRIT-24V165-1503.pdf 326.525KB

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Manufacturer Notices(to Dealers,etc)

RCMN-24V165-3754.pdf 114.504KB

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