Mounting of Rear Axle Carrier Left Side – 2019 Mercedes-Benz SL-Class

October 25, 2019 NHTSA CAMPAIGN NUMBER: 19V768000

Rear Axle Carrier Bolt Connection May Fail

Unexpected changes in the vehicle’s handling can increase the risk of a crash.

 

NHTSA Campaign Number: 19V768

Manufacturer Mercedes-Benz USA, LLC.

Components POWER TRAIN

Potential Number of Units Affected 36

 

Summary

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019 SL450, SL63 AMG, and SL550 vehicles. Over time, the bolt connection at the front-left mounting point on the rear axle carrier casting may fail, possibly affecting the vehicle’s handling.

 

Remedy

MBUSA will notify owners, and dealers will inspect the front-left mounting point of the rear axle carrier. If a defect in the bolt connection of the rear axle carrier is found, MBUSA will contact the owner and offer a repurchase of the vehicle. The recall began November 22, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA’s number for this recall is 2019100018.

 

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 Mercedes-Benz has a Recall

 

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TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers	FROM:  Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services
RE: Recall Campaign Launch Notification Mounting of Rear Axle Carrier Left Side MY19 231(SL-Class)	Date: November 08, 2019

 

 

IMPORTANT RECALL CAMPAIGN UPDATE

Please see the attached documents related to the campaign listed above.

 

Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES.

 

Sincerely,

Gregory Gunther

Department Manager, Vehicle Compliance & Analysis

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Campaign No. :	NHTSA ID	Campaign Desc. :	Mounting of Rear Axle Carrier Left Side
2019100018	19V768	19P6190101
This is to notify you of the Recall Campaign launch regarding the mounting of the rear axle carrier on 36 Model Year (“MY”)19 231 (SL-Class) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on November 08, 2019.
Background
Issue		Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2019 SL-Class vehicles (231 platform), the mounting point of the left side beam on the rear axle carrier might not meet current production specification.  Due to a deviation in the production process at the supplier, occlusions might have been introduced during the casting process in the area of the front left mounting point. Depending on the position and size of the occlusion in the front left mounting point, the load capacity of this bolt connection might be impaired. Over time, this might lead to a failure of this bolt connection, which would result in significant knocking noise emanating from the rear axle.  If the customer were to ignore these pre-warning noises over a longer period of time, it is possible that the remaining three bolt connections could also fail, thereby affecting vehicle handling, and increasing the risk of a crash.
What We’re Doing		MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will check the front left bolt connection of the rear axle carrier on the affected vehicles. If the bolt connection is impaired, the defect would be irreparable.  In that event, a repurchase of the customer’s vehicle will be considered.
Parts		An inspection procedure is available and may be performed.
Vehicles Affected
Vehicle Model Year(s)		2019
Vehicle Model		SL-Class
Vehicle Populations
Total Recall Population		36
Total Vehicles in Dealer Inventory		6
-Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY19 SL-Class vehicles in dealer inventory covered by this notification .  Once the campaign is launched, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo Once the campaign is completed, the vehicle may be sold or leased.  -Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until the campaign is completed.   As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s)   -Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY19 SL-Class vehicles covered by this notification until the campaign is completed on the  vehicle.
Next Steps/Notes
Customer Notification Timeline		Customer letters will be mailed approximately one week after the remedy becomes available.
AOMS/SOMS		AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet Partners		This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction.   Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.

 

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Campaign No. 2009100018, November 2019

TO:	ALL MERCEDES-BENZ CENTERS
SUBJECT:	Model SL-class vehicles (231 platform) Model Year 2019 Mounting of Rear Axle Carrier

 

Mercedes-Benz AG (“MBAG”), manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2019 SL-class vehicles (231 platform), the mounting point of the left side beam on the rear axle carrier might not meet current production specification. Due to a deviation in the production process at the supplier, occlusions might have been introduced during the casting process in the area of the front left mounting point. Depending on the position and size of the occlusion in the front left mounting point, the load capacity of this bolt connection might be impaired. Over time, this might lead to a failure of this bolt connection, which would result in significant knocking noise emanating from the rear axle. If the customer were to ignore these pre-warning noises over a longer period of time, it is possible that the remaining three bolt connections could also fail, thereby affecting vehicle handling, and increasing the risk of a crash. An authorized Mercedes-Benz dealer will check the front left bolt connection of the rear axle carrier on the affected vehicles. If the bolt connection is impaired, the defect would be irreparable. In that event, a repurchase of the customer’s vehicle will be considered.

Prior to performing this Recall Campaign:

• Please check VMI to determine if the vehicle is involved in the Campaign and if it has been previously repaired. Always Check VMI for any open campaigns, and perform accordingly.
• Please review the entire Recall Campaign bulletin and follow the repair procedure exactly as described.

Please note that Recall Campaigns do not expire and may also be performed on a vehicle with a vehicle status indicator.

Approximately 36 vehicles are involved.

 

Order No. P-RC-2009100018

This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and  data Control, and MBUSA-SLP S424HH001, Control of Quality Records.

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Check/test procedure

1. Lift vehicle with vehicle lift.
2. Unscrew the M12 screw on the front left rear axle carrier.

Secure the rear axle with the transmission jack.

3. Check thread with endoscope over the entire thread length.

Figure 1

 

a. Thread Axle mounting (A) damaged: Perform work procedure.

b. Thread Axle mounting (A) not damaged: Replace bolt* and End action 

*for bolt installation see BA35.10-p-1001-01N

 

 

Work procedure 

 

1. If the threads are damaged, create detailed pictures of the damaged threads and clarify further repair procedure using PTSS-case.

• Submit PTSS-case via. Xentry portal

 

Primary Parts Information

Qty.	Part Name	Part Number	Estimated Replacement Rate
1	bolt	A 002 990 15 03	10%

 

Small parts such as screws, stop nuts, sealing rings, cable ties, fluids, sealants, etc. are not listed in the parts list. The required small parts (per WIS) are taken into account in the budgeting and can be claimed.

 

Warranty Information 

 

With check

Operation: Check thread at front rear axle mounting on left side and replace bolt        

Damage Code	Operation Number	Labor Time (hrs.)
61 901 01 7	02-1371	0.7

 

With check work procedure

Operation: Check thread at front rear axle mounting on left side

Create detailed pictures and clarify further repair procedure using PTSS-case. 

Damage Code	Operation Number	Labor Time (hrs.)
61 901 01 7	02-1371	0.7
	02-2186	0.2

 

Note

Operation Number labor times are subject to change.

 

P-RC-2009100018

 

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IMPORTANT SAFETY RECALL 2019100018
This notice applies to your vehicle, VIN:
Mounting of Rear Axle Carrier, Left Side
NHTSA Recall # 19V768

 

• A remedy is available for your vehicle.
• Schedule an appointment with your authorized Mercedes-Benz dealer as soon as possible.
• This remedy will be provided free of charge.

2019100018

Dear Mercedes-Benz Owner:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has decided that a defect, which relates to motor vehicle safety exists in certain Model Year (“MY”) 2019 SL-Class. Our records indicate that your vehicle is included in the affected population of vehicles.

What is the CONCERN?	MBAG has determined that on certain MY 2019 SL-class vehicles (231 platform), the mounting point of the left side beam on the rear axle carrier might not meet current production specification. Due to a deviation in the production process at the supplier, a manufacturing defect might have been introduced during the casting process in the area of the front left mounting point.  If this occurred, the load capacity of this bolt connection might be impaired. Over time, this might lead to a failure of the front left bolt connection, which would result in significant knocking noise emanating from the rear axle.  If the vehicle continues to be driven in this condition, it is possible that the remaining three bolt connections could also fail, thereby affecting vehicle handling, and increase the risk of a crash.
What will your DEALER DO?	An authorized Mercedes-Benz dealer will check the front left bolt connection of the rear axle carrier on the affected vehicles.  Should the bolt connection be found to be defective, your dealer will inform MBUSA who will contact you directly to offer a repurchase of the vehicle.  This service will be provided free of charge.  We are dedicated to always delivering the best customer experience, and respect for your time is a top priority. While the minimum repair time can be up to 1.0 hour, your dealer can provide you with a better estimate of the overall time for this service visit.  As a matter of normal service process, an authorized Mercedes-Benz dealer will also check for other repair measures which might be applicable to your vehicle and this may increase the required working time.
What should YOU DO?	For additional information and to schedule an appointment, please contact your preferred authorized Mercedes-Benz dealer at your earliest convenience. To locate authorized dealers see www.mbusa.com/recall. Please mention you are scheduling an appointment to check the front left bolt connection of the rear axle carrier under Recall Campaign #2019100018. You may be asked for your 17-digit Vehicle Identification Number (VIN) which for your convenience is located above your name at the top of this letter.
Information for Owners	In the event that you are no longer the vehicle owner, or have had a change of address, please complete the reverse side and return the updated information in the enclosed envelope. If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first class mail to the lessee within 10 business days to comply with Federal Regulations.

 

To find the most convenient authorized MercedesBenz dealer from your smartphone, scan the QR code to the left.

A VIN-based recall lookup tool on our MBUSA.com website now offers a search feature that will indicate whether a vehicle has been subject to a safety recall, and whether that vehicle has had the free remedy performed. See ZZZPEXVDFRPUHFDOOShould you have any questions or encounter any difficulty regarding this Recall Campaign, please contact an authorized Mercedes-Benz dealer. If for any reason a dealer is unable to remedy your situation, we are always happy to hear from you. Please contact us at 1-(800) FORMERCEDES (1-800-367-6372).

If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of time, pursuant to law 49 U.S.C. Chapter 301, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https://www.safercar.gov.

We apologize for any inconvenience this situation may cause you.

Sincerely,

Mercedes-Benz USA, LLC
A Mercedes-Benz AG Company
One Mercedes-Benz Drive
Sandy Springs, GA  30328
Phone (770) 705-0600

IMPORTANT VIN:

If for any reason YOU NO LONGER OWN THIS VEHICLE OR have a CHANGE OF ADDRESS, please COMPLETE THE SECTION BELOW, place in the ENCLOSED ENVELOPE, and DROP IN ANY MAIL BOX. If possible, provide the name and address of the present owner so that we may contact them.

 

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TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers	FROM:  Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services
RE: Recall Campaign Initial Notification Mounting of Rear Axle Carrier Left Side MY19 231 (SL-Class)	Date: November 1, 2019

 

IMPORTANT RECALL CAMPAIGN UPDATE

Please see the attached documents related to the campaign listed above.

 

Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES.

 

Sincerely,

Gregory Gunther

Department Manager, Vehicle Compliance & Analysis

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Campaign No. :	NHTSA ID		Campaign Desc. :	Mounting of Rear Axle Carrier Left Side
TBD	19V768		PEND 231 REAR AXL
This is to notify you of a new Recall Campaign regarding the mounting of the rear axle carrier on 36 Model Year (“MY”) MY19 231 (SL-Class) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on November 1, 2019.
Background
Issue		Mercedes-Benz AG (“MBAG”), manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2019 SL-class vehicles (231 platform), the mounting point of the left side beam on the rear axle carrier might not meet current production specification. Due to a deviation in the production process at the supplier, occlusions might have been introduced during the casting process in the area of the front left mounting point. Depending on the position and size of the occlusion in the front left mounting point, the load capacity of this bolt connection might be impaired. Over time, this might lead to a failure of this bolt connection, which would result in significant knocking noise emanating from the rear axle.  If the customer were to ignore these pre-warning noises over a longer period of time, it is possible that the remaining three bolt connections could also fail, thereby affecting vehicle handling, and increasing the risk of a crash.
What We’re Doing		MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will check the front left bolt connection of the rear axle carrier on the affected vehicles. If the bolt connection is impaired, the defect would be irreparable.  In that event, a repurchase of the customer’s vehicle will be considered.
Parts		An additional notification will be sent when the inspection procedure is available.
Vehicles Affected
Vehicle Model Year(s)		2019
Vehicle Model		SL-Class
Vehicle Populations
Total Recall Population		36
Total Vehicles in Dealer Inventory		7
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY19 SL-Class vehicles in dealer inventory covered by this notification until the vehicle has been repaired.  Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo Once the repair is complete, the vehicle may be sold or leased.   Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired.   As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s)   Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY19 SL-Class vehicles covered by this notification until the vehicle has been repaired.
Next Steps/Notes
Customer Notification Timeline		Customer letters will be mailed approximately one week after the remedy becomes available.
AOMS/SOMS		AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet Partners		This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.

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3 Affected Products

Vehicles

MAKE	MODEL	YEAR
MERCEDES BENZ	SL450	2019
MERCEDES BENZ	SL550	2019
MERCEDES BENZ	SL63 AMG	2019

 

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12 Associated Documents

ISSUED Owner Notification Letter(Part 577)

RCONL-19V768-1322.pdf 181.778KB

 

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Recall 573 Report – Amendment 2

RCLRPT-19V768-6841.PDF 216.703KB

 

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Recall Quarterly Report #1, 2019-4

RCLQRT-19V768-0421.PDF 211.143KB

 

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Recall Quarterly Report #2, 2020-1

RCLQRT-19V768-2092.PDF 211.244KB

 

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Recall Quarterly Report #3, 2020-2

RCLQRT-19V768-3791.PDF 211.328KB

 

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Manufacturer Notices(to Dealers,etc)- Recall Campaign Launch Notification Mounting of Rear Axle Carrier Left Side MY19 231(SL-Class)

RCMN-19V768-6467.pdf 301.857KB

 

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Remedy Instructions and TSB

RCRIT-19V768-8233.pdf 208.059KB

 

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Recall Acknowledgement

RCAK-19V768-2293.pdf 292.173KB

 

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Manufacturer Notices(to Dealers,etc)- RCMN-19V768-9480 / Initial NCU – MY19 231 Mounting of Rear Axle Carrier Left Side

RCMN-19V768-9480.pdf 98.097KB

 

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Defect Notice 573 Report

RCLRPT-19V768-3151.PDF 216.724KB

 

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Recall 573 Report – Amendment 1

RCLRPT-19V768-7446.PDF 217.153KB

 

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Recall Quarterly Report #4, 2020-3

RCLQRT-19V768-9004.PDF 211.425KB

 

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V768&docType=RCL

 

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