Safety Recall 20V-700 Fuel Tank – 2020-2021 BMW Z4

November 12, 2020 NHTSA CAMPAIGN NUMBER: 20V700000

Fuel Tank Weld May Fail

The failed weld may allow fuel to leak, increasing the risk of a fire in the presence of an ignition source.


NHTSA Campaign Number: 20V700

Manufacturer BMW of North America, LLC


Potential Number of Units Affected 49



BMW of North America, LLC (BMW) is recalling certain 2020-2021 Z4 and 2020-2021 Toyota Supra vehicles. The weld between the fuel tank halves may have been insufficiently welded, causing the weld to fail.



BMW will notify owners, and dealers will replace the fuel tank, free of charge. The recall began December 18, 2020. Owners may contact BMW customer service at 1-800-525-7417 or Toyota customer service at 1-888-270-9371.



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 has a Recall


SIB 16 03 20 2021-01-06


This Service Information Bulletin (Revision 3) replaces SI B16 03 20 dated November 2020.


What’s New (Specific text highlighted):

Parts Section Updated


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.



E-SeriesModel DescriptionProduction Date
G29Z4 RoadsterJune 26, 2019 – July 9, 2020



Vehicles which require this 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.



BMW AG has issued a Delivery Stop (effective October 29, 2020) on a small number of Model Year 20202021 BMW Z4 Roadsters that were produced between June 26, 2019 and July 9, 2020.

As of November 12, 2020, this Delivery Stop has been upgraded to a recall.

The fuel tank may not have been produced to specifications.  Over time, and due to factors such as certain driving conditions and road vibrations, this could lead to a fuel leak.  Fuel, in the presence of an ignition source, could lead to a fire.

The Recall Notice and Q&A have been attached for further information.



Replace the fuel tank.



Replace the fuel tank as described in the repair instructions REP 16 11 030 Removing and installing the fuel tank.



Only use and invoice the part numbers below that apply (Warranty Work Pacakges 1 and 3).

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 NumberDescriptionQuantity
16 11 9488314Plastic fuel tank1
16 11 7476100O-ring for the delivery unit1
33 30 6793892Torx screw with a collar for the rear axle support4
07 11 9906672Hexagon bolt for mounting the tank4
07 12 9952117Hose clamp for the fuel filler pipe1
07 14 6884435ASA multi-purpose bolt for the compression struts8
34 21 6860562Hexagon bolt for the rear brake caliper4
33 32 6760668Self-locking collar nut for the trailing arm and control arm12
33 30 6861943Hexagon bolt for the trailing arm and control arm2
07 11 9906093Hexagon bolt with a collar for the trailing arm8
33 12 7607158Repair kit for the recessed nut of the propeller shaft1
07 11 9905529Hexagon bolt with a washer for the exhaust system1
07 11 9904024Hexagon nut for the exhaust system6
07 14 7413212Hexagon bolt for the rear torsion strut (M12x40x1.5 10.9)4
07 14 9213164Hexagon bolt for the rear torsion strut (TS5x20 SW8 D=22)2
07 11 9904141Hexagon bolt with a flange for the rear torsion strut (M10x30-10.9ZNS3)10
18 30 8631986V-clip for the catalytic converter near the engine (D=80.0 mm)1 (if


18 30 8635798Clamping collar for the catalytic converter near the engine (D=80.0 mm)1 (if


26 11 7527475Hexagon bolt (M12x1.5×71-ZNS3)3 (if


26 11 7523709Hexagon bolt (M12x1.5×58-ZNS3)3 (if


37 10 6789678Hexagon nut with flange (M12x1.5-10-ZNS3)3 (if


26 12 7536563Self-locking hexagon nut (M12x1.5-10-ZNS3)3 (if


26 11 7526611Centering sleeve of propeller shaft1 (if


26 11 7562574Centering sleeve of hard propeller shaft1 (if



Safety Recall
Fuel Tank
Model Year 2020-2021 BMW Z4
Issue Date:  11/12/2020
Last Update:  11/12/2020


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

A small number of Model Year 2020-2021 BMW Z4 models in the US are potentially affected.


Q2. What is the specific issue?

The fuel tank may not have been produced to specifications.  Over time, and due to factors such as certain driving conditions and road vibrations, this could leak to a fuel leak.  Fuel, in the presence of an ignition source, could lead to a fire.


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

Other models were manufactured with a fuel tank that was produced to specifications.


Q4. Can I continue to drive my vehicle?

Yes.  However, when you receive a letter from BMW advising you of this recall, you should make an appointment to have this important Safety Recall performed by an authorized BMW center as soon as possible.  If you are not the only driver of this vehicle, please advise all other drivers of this important information.


Q5. Can I determine if this issue exists in my vehicle?

If you notice a fuel odor, or see a fuel leak from underneath the vehicle, your vehicle may be experiencing this condition.


Q6. How did BMW become aware of the issue?

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


Q7. 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 and requesting them to schedule an appointment with an authorized BMW center to have the remedy performed.  Owners can locate their nearest authorized BMW center at  To ensure BMW has the most recent contact and vehicle information, owners should register their vehicle at  Registration is free, and will give them access to factory-initiated campaigns and other information specific to their BMW.


Q8. How will my vehicle be remedied?

The fuel tank will be replaced for free and should take several hours.


Q9. Do I have to wait for my letter to have my vehicle serviced?

Yes.  BMW is in the process of ensuring that the necessary tools, parts, and procedures are available prior to contacting you to schedule an appointment with your authorized BMW center to have this important Safety Recall performed.  For the latest updates to this Safety Recall, please visit


Chronology :

On September 14, 2020, a non-US field report indicated that a 2019 BMW Z4 experienced a fuel leak. An engineering review was initiated, and the fuel tank supplier was contacted.

A review of supplier production records indicated that a deviation in the welding process had occurred when joining (welding) the two halves of the fuel tank. The review indicated that a specific process parameter involving the heating time of the tank halves may not have met and, therefore, could lead to an out-of-specification weld condition between the two tank halves.

Vehicle assembly information and supplier production records were reviewed to determine the number and production dates of potentially affected vehicles.

On November 5, 2020, BMW Group decided to conduct a voluntary recall for potentially affected vehicles.

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


4 Affected Products




19 Associated Documents

Remedy Instructions and TSB

RCRIT-20V700-4895.pdf 167.456KB



Recall Quarterly Report #1, 2020-4

RCLQRT-20V700-2717.PDF 211.139KB



ISSUED Interim Owner Notification Letter(Part 577)

RIONL-20V700-7048.pdf 353.457KB



Recall Quarterly Report #3, 2021-2

RCLQRT-20V700-7263.PDF 211.317KB



Owner Notification Letter(Part 577)

RCONL-20V700-4578.pdf 757.963KB



Remedy Instructions and TSB – Safety Recall Notice re RECALL 20V-XXX: REPLACE FUEL TANK

RCRIT-20V700-8420.pdf 166.608KB



Remedy Instructions and TSB – POTENTIAL FUEL TANK LEAK CERTAIN 2020-2021 SUPRA

RCRIT-20V700-9369.pdf 3685.878KB



Manufacturer Notices(to Dealers,etc) – Dealer Package re Certain 2020-2021 Model Year Supra Potential Fuel Tank Leak

RCMN-20V700-0656.pdf 973.64KB



Manufacturer Notices(to Dealers,etc)

RCMN-20V700-9510.pdf 1015.957KB



ISSUED Owner Notification Letter(Part 577)

RCONL-20V700-0306.pdf 356.153KB



Recall Acknowledgement

RCAK-20V700-1110.pdf 299.952KB



Manufacturer Notices(to Dealers,etc) – Technical Service Bulletin re BMW Recall 20V-xxx: Replace Fuel Tank

RCMN-20V700-3186.pdf 135.856KB



Manufacturer Notices(to Dealers,etc) – Dealer and Manager Notification re Certain 2020-2021 Model Year Supra Potential Fuel Tank Leak

RCMN-20V700-9870.pdf 243.735KB



Recall 573 Report

RCLRPT-20V700-3252.PDF 215.538KB



Recall Quarterly Report #1, 2020-4

RCLQRT-20V700-0917.PDF 211.231KB



Recall Quarterly Report #2, 2021-1

RCLQRT-20V700-0351.PDF 211.245KB



Recall Quarterly Report #2, 2021-1

RCLQRT-20V700-9230.PDF 211.231KB



Remedy Instructions and TSB

RCRIT-20V700-3257.pdf 3690.973KB



Recall Quarterly Report #4, 2021-3

RCLQRT-20V700-5182.PDF 211.424KB



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