RECALL 23V-863: Cylinder Head Cover – 2024 BMW 4 Series Coupe, 4 Series Gran Coupe

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12/14/23, 4:16 PM 11 11 23_RECALL 23V-XXX: CYLINDER HEAD COVER
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SIB 11 11 23
RECALL 23V-XXX: CYLINDER HEAD COVER
2023-12-14 MODEL
E-Series Model Description Production Date
G23 4 Series Convertible October 10, 2023 – October 11, 2023
G26 4 Series Gran Coupe October 10, 2023 – October 12, 2023 AFFECTED VEHICLES
Vehicles which require this campaign to be completed will show it as “Open” when checked either in AIR, AWP, Campaign Summary or Warranty Vehicle Inquiry. Please make sure you check your dealer inventory as soon as possible. As of December 15, 2023, you can see a list of affected vehicles in Inventory Campaign Details (ICD) under ROSS. SITUATION
BMW AG is conducting a Voluntary Safety Recall (effective December 14, 2023) on a small number of Model Year 2024 BMW vehicles that were produced between October 10, 2023, and October 12, 2023. The cylinder head cover may not have been produced according to specifications by the supplier. Over time, hairline cracks could form in the cover which could allow oil to leak into the engine compartment. In rare cases, this could lead to a thermal event.
The Recall Notice and Q&A have been attached for further information. The bulletin will be updated when additional information becomes available. Supporting Materials
picture_as_pdf B111123 23V-xyz-CylinderHeadCover-FAQ-(14Dec2023).pdf picture_as_pdf B111123 Recall Notice.pdf
Copyright ©2023 BMW of North America, Inc. 12/14/23, 4:16 PM 11 11 23_RECALL 23V-XXX: CYLINDER HEAD COVER Copyright ©2023 BMW of North America, Inc.
about:blank 2/2 Attachment to B11 11 23 December 2023 SAFETY RECALL NOTICE To: All Center Operators, Sales Managers, Service Managers, Parts Managers and Warranty Processors
RE: Recall 23V-xxx: Cylinder Head Cover – B11 11 23 BMW AG is conducting a Voluntary Safety Recall (effective December 14, 2023) on a small number of Model Year 2024 BMW vehicles that were produced between October 10, 2023, and October 12, 2023.
Please be reminded that it is a violation of federal law (The Safety Act) for you to sell, lease or deliver any new motor vehicle covered by this notification until the recall repair has been performed. This means that Centers may not legally deliver new motor vehicles 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 Certified Pre-Owned or used vehicles 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. We appreciate all your assistance with this Recall. Attachment to B11 11 23 December 2023
Safety Recall 23V-xyz
Cylinder Head Cover Model Year 2024
BMW 4 Series Coupe, 4 Series Gran Coupe Issue Date: 12/14/2023 Q1. Which BMW Group models in the US are potentially affected by this Safety Recall?
Certain Model Year 2024 BMW 4 Series Coupe and 4 Series Gran Coupe vehicles in the US are potentially affected. Q2. What is the specific issue?
The cylinder head cover may not have been produced according to specifications by the supplier. Over time, hairline cracks could form in the cover which could allow oil to leak into the engine compartment. In rare cases, this could lead to a thermal event. Q3. Why are other models / vehicles not included in this Safety Recall?
Other models have a cylinder head cover that was produced to specifications by the supplier. Q4. Can I continue to drive my vehicle?
Yes. However, when you are notified by BMW of this Safety Recall, please contact an authorized BMW center to schedule an appointment as soon as possible. For the latest updates to this Safety Recall, please visit bmwusa.com/recall. 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 its quality control procedures. Q6. How will I be informed of this Safety Recall?
Owners of potentially affected vehicles will be notified via First Class mail and requested to schedule an appointment with an authorized BMW center to have the remedy performed. To ensure BMW has the most up-to-date contact and vehicle information, owners should register their vehicle at bmwusa.com/myBMW. Registration is free and will give them access to other information specific for their BMW vehicle. Alternatively, owners can visit bmwusa.com/recall and click on “Manage recall notices and contact information”. Q7. How will my vehicle be remedied?
Potentially affected vehicles will have the cylinder head cover inspected and, if necessary, replaced. Q8. Do I have to wait for BMW to contact me to have the remedy performed?
No. Please contact an authorized BMW center as soon as possible to have the remedy performed. Owners can locate their nearest authorized BMW center at bmwusa.com/dealer.

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-863
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
BMW of North America, LLC DEC 20, 2023 NHTSA Recall No. : 23V-863 Manufacturer Recall No. : NR Manufacturer Information :
Manufacturer Name : BMW of North America, LLC Address : P.O. Box 1227
Westwood NJ 07675-1227
Company phone : 18005257417
Population :
Number of potentially involved : 5
Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2024-2024 BMW 4 Series Convertible (430i) Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS
Descriptive Information : Approximately 5 vehicles were manufactured in which the cylinder head cover may not have been produced to specifications by the supplier. Basis for recall population determination:
Vehicle manufacturing information and supplier production records were reviewed to determine the number and production date range of potentially affected vehicles. Recall component difference to non-recall component:
The cylinder head cover may not have been produced to specifications by the supplier. Production Dates : OCT 10, 2023 – OCT 11, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The cylinder head cover may not have been produced to specifications by the supplier. Specifically, a production process anomaly may have occurred in the injection molding process. This could cause unwanted variations in the wall- thickness of the cover. As a result, hairline cracks could form in the cover and, over time, due to vibration and heat within the operating environment of a running engine, could allow engine oil to leak into the engine compartment. FMVSS 1 : NR Part 573 Safety Recall Report 23V-863 Page 2 FMVSS 2 : NR
Description of the Safety Risk : If oil contacted hot engine parts, this could increase the risk of a thermal
event.
Description of the Cause : NR Identification of Any Warning
that can Occur : The driver may be alerted by a warning message in the instrument cluster. Involved Components : Component Name 1 : Cylinder Head Cover Component Description : Cylinder Head Cover Component Part Number : 9452895 Supplier Identification : Component Manufacturer
Name : MAHLE COMPONENTE DE MOTOR SRL
Address : Calea-Aradului, DN 69 KM 6 Timisoara Foreign States 300645
Country : Romania Chronology :
On October 5, 2023, an oil leak was noticed during a quality assurance test after engine assembly. It appeared that the leak had occurred at the cylinder head cover. The cylinder head cover supplier was contacted, and an engineering review was initiated. The supplier indicated that a production process issue had occurred in July, and that a containment action had been implemented for potentially suspect parts. Information from engine testing suggested that the containment action may not have been sufficient. Between October 10th and the 31st, bench testing was performed with a hole prepared in the cover to simulate possible effects as a result of the production anomaly. During November, the test results were analyzed and, as a precautionary measure, a stop ship was issued at the vehicle assembly plant. Further reviews and analyses were conducted to determine the possible timeline for part degradation in the field that could lead to an oil leak on vehicles equipped with potentially suspect parts.
However, this would have also required a time-consuming endurance test to be performed. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-863
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Vehicle assembly information and supplier production and process records were reviewed to determine the number, and production dates, of potentially affected vehicles. On December 13, 2023, BMW decided to conduct a voluntary safety recall. BMW has not received any reports, nor is BMW otherwise aware, of any accidents or injuries related to this issue.
Description of Remedy : Description of Remedy Program : The cylinder head cover will be inspected and, if necessary, replaced.
Owners will be notified by First Class mail advising them of the recall and to schedule an appointment with an authorized BMW dealer to have the remedy performed for free. If this condition were to occur to a potentially affected vehicle prior to this recall, the remedy would be covered by the BMW New Vehicle Limited Warranty program. Therefore, reimbursement for a pre-notification remedy re Part 573.13 and Part 577.11 is not necessary.
How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production :
Recall component: Cylinder Head Cover– part number: 9452895 NR Recall Schedule :
Description of Recall Schedule : Dealer notification is expected to begin and end on December 20, 2023. Owner notification is expected to begin and end on February 9, 2024.
Planned Dealer Notification Date : DEC 20, 2023 – DEC 20, 2023
Planned Owner Notification Date : FEB 09, 2024 – FEB 09, 2024
* NR – Not Reported

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12/14/23, 4:16 PM 11 11 23_RECALL 23V-XXX: CYLINDER HEAD COVER
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SIB 11 11 23
RECALL 23V-XXX: CYLINDER HEAD COVER
2023-12-14 MODEL
E-Series Model Description Production Date
G23 4 Series Convertible October 10, 2023 – October 11, 2023
G26 4 Series Gran Coupe October 10, 2023 – October 12, 2023 AFFECTED VEHICLES
Vehicles which require this campaign to be completed will show it as “Open” when checked either in AIR, AWP, Campaign Summary or Warranty Vehicle Inquiry. Please make sure you check your dealer inventory as soon as possible. As of December 15, 2023, you can see a list of affected vehicles in Inventory Campaign Details (ICD) under ROSS. SITUATION
BMW AG is conducting a Voluntary Safety Recall (effective December 14, 2023) on a small number of Model Year 2024 BMW vehicles that were produced between October 10, 2023, and October 12, 2023. The cylinder head cover may not have been produced according to specifications by the supplier. Over time, hairline cracks could form in the cover which could allow oil to leak into the engine compartment. In rare cases, this could lead to a thermal event.
The Recall Notice and Q&A have been attached for further information. The bulletin will be updated when additional information becomes available. Supporting Materials
picture_as_pdf B111123 23V-xyz-CylinderHeadCover-FAQ-(14Dec2023).pdf picture_as_pdf B111123 Recall Notice.pdf
Copyright ©2023 BMW of North America, Inc. 12/14/23, 4:16 PM 11 11 23_RECALL 23V-XXX: CYLINDER HEAD COVER Copyright ©2023 BMW of North America, Inc.
about:blank 2/2 Attachment to B11 11 23 December 2023 SAFETY RECALL NOTICE To: All Center Operators, Sales Managers, Service Managers, Parts Managers and Warranty Processors
RE: Recall 23V-xxx: Cylinder Head Cover – B11 11 23 BMW AG is conducting a Voluntary Safety Recall (effective December 14, 2023) on a small number of Model Year 2024 BMW vehicles that were produced between October 10, 2023, and October 12, 2023.
Please be reminded that it is a violation of federal law (The Safety Act) for you to sell, lease or deliver any new motor vehicle covered by this notification until the recall repair has been performed. This means that Centers may not legally deliver new motor vehicles 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 Certified Pre-Owned or used vehicles 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. We appreciate all your assistance with this Recall. Attachment to B11 11 23 December 2023
Safety Recall 23V-xyz
Cylinder Head Cover Model Year 2024
BMW 4 Series Coupe, 4 Series Gran Coupe Issue Date: 12/14/2023 Q1. Which BMW Group models in the US are potentially affected by this Safety Recall?
Certain Model Year 2024 BMW 4 Series Coupe and 4 Series Gran Coupe vehicles in the US are potentially affected. Q2. What is the specific issue?
The cylinder head cover may not have been produced according to specifications by the supplier. Over time, hairline cracks could form in the cover which could allow oil to leak into the engine compartment. In rare cases, this could lead to a thermal event. Q3. Why are other models / vehicles not included in this Safety Recall?
Other models have a cylinder head cover that was produced to specifications by the supplier. Q4. Can I continue to drive my vehicle?
Yes. However, when you are notified by BMW of this Safety Recall, please contact an authorized BMW center to schedule an appointment as soon as possible. For the latest updates to this Safety Recall, please visit bmwusa.com/recall. 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 its quality control procedures. Q6. How will I be informed of this Safety Recall?
Owners of potentially affected vehicles will be notified via First Class mail and requested to schedule an appointment with an authorized BMW center to have the remedy performed. To ensure BMW has the most up-to-date contact and vehicle information, owners should register their vehicle at bmwusa.com/myBMW. Registration is free and will give them access to other information specific for their BMW vehicle. Alternatively, owners can visit bmwusa.com/recall and click on “Manage recall notices and contact information”. Q7. How will my vehicle be remedied?
Potentially affected vehicles will have the cylinder head cover inspected and, if necessary, replaced. Q8. Do I have to wait for BMW to contact me to have the remedy performed?
No. Please contact an authorized BMW center as soon as possible to have the remedy performed. Owners can locate their nearest authorized BMW center at bmwusa.com/dealer.

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1/5/24, 7:51 AM 11 11 23_SAFETY RECALL 23V-863: CHECK AND REPLACE CYLINDER HEAD COVER
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SAFETY RECALL 23V-863: CHECK AND REPLACE CYLINDER HEAD COVER
2024-01-04 This Service Information Bulletin (Revision 2) replaces SI B11 11 23 dated December 2023. 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. ☐ THIS REPAIR IS MOBILE FRIENDLY
What’s New:
Recall # added to title and to Attachments Model section updated
Procedure updated Parts list updated
Claim Information updated
MODEL
E-Series Model Description Production Date
G23 4 Series Convertible October 10, 2023 – October 11, 2023 AFFECTED VEHICLES
Vehicles which require this campaign to be completed will show it as “Open” when checked either in AIR, AWP, Campaign Summary, or Warranty Vehicle Inquiry. Please make sure you check your dealer inventory as soon as possible. You can see a list of affected vehicles in Inventory Campaign Details (ICD) under ROSS. SITUATION
BMW AG is conducting a Voluntary Safety Recall (effective December 14, 2023) on a small number of Model Year 2024 BMW vehicles that were produced between October 10, 2023, and October 12, 2023. The cylinder head cover may not have been produced according to specifications by the supplier. Over time, hairline cracks could form in the cover which could allow oil to leak into the engine compartment. In rare cases, this could lead to a thermal event. The Recall Notice and Q&A are attached .
PROCEDURE
Copyright ©2024 BMW of North America, Inc. 1/5/24, 7:51 AM 11 11 23_SAFETY RECALL 23V-863: CHECK AND REPLACE CYLINDER HEAD COVER
1. Check the cylinder head cover for “WZ2” or “WZ3” embossed in the plastic surface (1). 2. If “WZ3” is on the cylinder head cover, then it does not require replacement. If “WZ2” is on the cylinder head cover, then it must be replaced. If neccesary, 3. Refer to Repair Instruction 11 12 001 Replacing the cylinder head cover. Note: The above embossed reference number information only applies to the original cylinder head cover that was installed on the engine at the factory. Note: The new replacement cylinder head covers received from your RDC are not affected by this recall and can be installed without an inspection. Covers from the RDC may have the WZ2 code but have been verified as being OK to install. Please review the affected vehicle’s Repair History (Claims) section located at the bottom of the Warranty Vehicle Inquiry (WVI) to confirm that a prior claim for a cylinder head cover replacement has not already been submitted and accepted. PARTS INFORMATION
If the cylinder head cover requires replacement, use and invoice the applicable part numbers listed below. Part Number
11 12 9 452 895
07 11 9 905 147
13 51 7 632 572
11 12 8 638 246
13 53 9 847 174
13 62 8 658 854
11 36 5 A65 AB5 Description
Cylinder head cover Hexagon screw with washer Torx socket with washer Profile seal
Sealing ring O-ring Gasket Quantity
1
8
2
1
4
2
2 The new replacement cylinder head covers received from your RDC are not affected by this recall and can be installed without an inspection. Covers from the RDC may have the WZ2 code but have been verified as being OK to install. Additionally, other materials and small parts that are not specified above, such as fluids, lubricants, one-time use screws, nuts, and seals, which must be replaced or installed according to the ISTA repair instructions/ETK, must be selected from the Electronic Parts Catalog, or other approved BMW resources, according to the respective vehicle type. Invoiced these items separately under the Repair Code listed in this bulletin. Copyright ©2024 BMW of North America, Inc.
about:blank 2/5 1/5/24, 7:51 AM 11 11 23_SAFETY RECALL 23V-863: CHECK AND REPLACE CYLINDER HEAD COVER CLAIM INFORMATION
Reimbursement for this Recall will be via normal claim entry utilizing the applicable work package information below, and when applicable, the part numbers listed above that apply. Repair Code: 0011590700 Check and replace the cylinder head cover Below are the special flat rate labor operation code choices for this action. Completion before the first vehicle delivery to a customer or the vehicle is already in the workshop Work Pkg
# 1 Or: # 2
Or: # 3 Labor Operation
00 57 769 00 57 770 00 57 771 Description (Plusposition work) Checking the cylinder head cover (No repair is necessary) Checking and replacing the cylinder head cover Vehicle was already taken care of through another repair or Technical Campaign Labor Allowance
As applicable As applicable 1 FRU The vehicle arrives at your center and this Safety Recall shows open (No other Main work will be performed or claimed during this workshop visit) Work Pkg
# 4 Or: # 5
Or: # 6 Labor Operation
00 75 205 00 75 206 00 75 207 Description (Main work)
Checking the cylinder head cover (No repair is necessary) Checking and replacing the cylinder head cover Vehicle was already taken care of through another repair or Technical Campaign Labor Allowance
As applicable As applicable 1 FRU Only one of the flat rate labor operation codes listed above can be used for claim submission and reimbursement. Also, only one Main work flat rate labor operation code can be claimed per workshop visit. Claim Repair Comments Only reference the SIB number and the work package (Pkg) number performed in the RO technician notes and the claim comment section (For example: B11 11 23 WP 1), unless otherwise required by State law. Sublet – Bulk Materials (RO and Claim Comments Required) Sublet Code 4 Up to
$25.00 Reimbursement for the repair-related bulk material as noted above (Do not use the BMW part number for claim submission) Sublet reimbursement calculation for claiming the applicable repair-related bulk material (BMW part number) is at the “dealer net price amount” for the quantity used plus your center’s handling. Enter this material cost in sublet and itemize the amount on the repair order and in claim comment section. BMW Group’s AIR Application Resource for Flat Rate Labor Operation Codes
Copyright ©2024 BMW of North America, Inc.
about:blank 3/5 1/5/24, 7:51 AM 11 11 23_SAFETY RECALL 23V-863: CHECK AND REPLACE CYLINDER HEAD COVER To obtain the corresponding flat rate unit (FRU) allowance information from the BMW Group AIR application resource, start by entering the Chassis Number (the last seven (7) characters of the VIN, select the applicable Model if two or more vehicle choices show), or enter the full VIN (17 characters), click on the “Search” button. Next, click on the “Flat Rate Units” button and enter the flat rate labor operation code in the field to the right, click “Search” to display the Flat Rate Unit Group detail choices. Alternative Mobility Solution (AMS) for Vehicle Owners (RO and Claim Comments Required) This Recall’s repair qualifies for Alternative Mobility Solution (AMS) expense reimbursement, claim this item under the Repair Code noted above as follows: Sublet Code 2 – Itemize the AMS sublet amount on the repair order and in the claim comment section. Please refer to SI B01 29 16 for additional information. Reimbursement of Prior Customer-Pay Repairs (TREAD Act) Based on the issue, and the age of the Affected Vehicles being addressed by this Safety Recall Campaign, a reimbursement request for a qualifying prior customer-pay repair is not likely. However, if you do receive a reimbursement request from a customer for a prior repair that may qualify, please contact the Warranty department (include a legible copy of the invoice) through IDS by selecting Coverage, Policy, Coding Questions and Mileage Corrections. The Warranty department will review and respond to your inquiry accordingly. FEEDBACK REGARDING THIS BULLETIN
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 Warranty Feedback Parts Feedback Supporting Materials 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 picture_as_pdf B111123 Recall Notice.pdf
picture_as_pdf 23V-863-CylinderHeadCover-FAQ-(14Dec2023).pdf Copyright ©2024 BMW of North America, Inc.
about:blank 4/5 1/5/24, 7:51 AM 11 11 23_SAFETY RECALL 23V-863: CHECK AND REPLACE CYLINDER HEAD COVER Copyright ©2024 BMW of North America, Inc.
about:blank 5/5 Attachment to B11 11 23 December 2023 SAFETY RECALL NOTICE To: All Center Operators, Sales Managers, Service Managers, Parts Managers and Warranty Processors
RE: Recall 23V-863: Cylinder Head Cover – B11 11 23 BMW AG is conducting a Voluntary Safety Recall (effective December 14, 2023) on a small number of Model Year 2024 BMW vehicles that were produced between October 10, 2023, and October 12, 2023.
Please be reminded that it is a violation of federal law (The Safety Act) for you to sell, lease or deliver any new motor vehicle covered by this notification until the recall repair has been performed. This means that Centers may not legally deliver new motor vehicles 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 Certified Pre-Owned or used vehicles 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. We appreciate all your assistance with this Recall. Attachment to B11 11 23 December 2023
Safety Recall 23V-863
Cylinder Head Cover Model Year 2024
BMW 4 Series Coupe, 4 Series Gran Coupe Issue Date: 12/14/2023 Q1. Which BMW Group models in the US are potentially affected by this Safety Recall?
Certain Model Year 2024 BMW 4 Series Coupe and 4 Series Gran Coupe vehicles in the US are potentially affected. Q2. What is the specific issue?
The cylinder head cover may not have been produced according to specifications by the supplier. Over time, hairline cracks could form in the cover which could allow oil to leak into the engine compartment. In rare cases, this could lead to a thermal event. Q3. Why are other models / vehicles not included in this Safety Recall?
Other models have a cylinder head cover that was produced to specifications by the supplier. Q4. Can I continue to drive my vehicle?
Yes. However, when you are notified by BMW of this Safety Recall, please contact an authorized BMW center to schedule an appointment as soon as possible. For the latest updates to this Safety Recall, please visit bmwusa.com/recall. 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 its quality control procedures. Q6. How will I be informed of this Safety Recall?
Owners of potentially affected vehicles will be notified via First Class mail and requested to schedule an appointment with an authorized BMW center to have the remedy performed. To ensure BMW has the most up-to-date contact and vehicle information, owners should register their vehicle at bmwusa.com/myBMW. Registration is free and will give them access to other information specific for their BMW vehicle. Alternatively, owners can visit bmwusa.com/recall and click on “Manage recall notices and contact information”. Q7. How will my vehicle be remedied?
Potentially affected vehicles will have the cylinder head cover inspected and, if necessary, replaced. Q8. Do I have to wait for BMW to contact me to have the remedy performed?
No. Please contact an authorized BMW center as soon as possible to have the remedy performed. Owners can locate their nearest authorized BMW center at bmwusa.com/dealer.

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