February 26, 2021 NHTSA CAMPAIGN NUMBER: 21V124000
Spark Plugs May Cause Engine Damage
Engine damage may result in an engine stall, increasing the risk of a crash.
NHTSA Campaign Number: 21V124
Manufacturer Mercedes-Benz USA, LLC
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 7
Summary
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 CLA45 AMG vehicles equipped with 4-cylinder gasoline engines. Incorrect spark plugs may have been installed, which could come apart over time and cause engine damage.
Remedy
MBUSA will notify owners, and dealers will replace the spark plugs, free of charge. The recall began April 14, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
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
| 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: New Recall Campaign Initial Notification Spark Plug Replacement MY20 118 (CLA-Class) | Date: March 5, 2021 |
IMPORTANT NEW RECALL CAMPAIGN INFORMATION
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
| Campaign No. : | NHTSA ID | Campaign Desc. : | Spark Plug Replacement | |
| TBA | 21V124 | 21P2197360 | ||
| This is to notify you of a new Recall Campaign launch regarding spark plug replacements on 7 MY 2020 118 (CLA-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 March 5, 2021. | ||||
|
Background | ||||
| Issue | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicles with a 4-cylinder gasoline engine (M139), an incorrect variant of the spark plug might have been installed. In this case, an increased mechanical wear of the spark plug from thermal overload could occur over time. This may cause parts of the spark plug to possibly detach within the combustion chamber, potentially leading to engine damage. In this case, stalling of the vehicle cannot be ruled out, which could increase the risk of a crash. | |||
| What We’re Doing | MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will replace the affected spark plugs on the affected vehicles. | |||
| Parts | An additional notification will be sent when the remedy is available. | |||
|
Vehicles Affected | ||||
| Vehicle Model Year(s) | 2020 | |||
| Vehicle Model | CLA-Class | |||
|
Vehicle Populations | ||||
| Total Recall Population | 7 | |||
| Total Vehicles in Dealer Inventory | 0 | |||
| Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY20 CLA-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 MY20 CLA-Class vehicles covered by this notification until the vehicle has been repaired. | ||||
|
Next Steps/Notes | ||||
| Customer Notification Timeline | Customer may be contacted by the CAC. Customer letter will be mailed approximately at the time of launch. | |||
| 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. | ||||
| 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: Safety & Emissions Recall Campaign Launch Notification Replace Spark Plugs MY20 118 (CLA-Class) | Date: April 9, 2021 |
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
| Campaign No. : | CA DMV. : | NHTSA ID | Campaign Desc. : | Replace Spark Plugs | |
| 2021030011 | 210311 | 21V124 | 21P1590009 | ||
| This is to notify you of a Safety & Emissions Recall Campaign launch to replace the spark plugs on 7 Model Year (“MY”) 2020 118 (CLA-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 April 9, 2021. | |||||
|
Background | |||||
| Issue | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicles with a 4-cylinder gasoline engine (M139), an incorrect variant of the spark plug might have been installed which could affect the safety and emissions of the vehicle. In this case, an increased mechanical wear of the spark plug from thermal overload could occur over time. This may cause parts of the spark plug to detach within the combustion chamber, potentially leading to engine damage. In this case, stalling of the vehicle cannot be ruled-out, which could increase the risk of a crash. | ||||
| What We’re Doing | MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will replace the spark plugs on the affected vehicles. | ||||
| Parts | Parts are available and can be ordered as necessary. | ||||
|
Vehicles Affected | |||||
| Vehicle Model Year(s) | 2020 | ||||
| Vehicle Model | CLA-Class | ||||
|
Vehicle Populations | |||||
| Total Recall Population | 7 | ||||
| Total Vehicles in Dealer Inventory | 0 | ||||
| Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY20 CLA-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 MY20 CLA-Class vehicles covered by this notification until the vehicle has been repaired. Notice to California Dealers: As required by 13 CCR 2117, a proof of correction (“POC”) certificate showing that the vehicle has been repaired under this recall must be issued by the authorized service facility, and that such a certificate may be required by California as a condition of vehicle re-registration or operation. Please reference this POC in the attached work instructions. Failure to complete this step may result in fines and penalties and lead to customer dissatisfaction. | |||||
| Next Steps/Notes | |||||
| Customer Notification Timeline | Customer may be contacted by the CAC. Customer letter will be mailed approximately at the time of launch. | ||||
| 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. | |||||
Campaign No. 2021030011, April 2021
| TO: | ALL MERCEDES-BENZ CENTERS |
| SUBJECT: | Model CLA-Class (118 platform) Model Year 2020 Replace Spark Plugs |
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicles with a 4-cylinder gasoline engine (M139), an incorrect variant of the spark plug might have been installed which could affect the safety and emissions of the vehicle. In this case, an increased mechanical wear of the spark plug from thermal overload could occur over time. This may cause parts of the spark plug to detach within the combustion chamber, potentially leading to engine damage. In this case, stalling of the vehicle cannot be ruled-out, which could increase the risk of a crash. An authorized Mercedes-Benz dealer will replace the spark plugs on the affected vehicles.
Prior to performing this Recall Campaign:
- MI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other 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 7 vehicles are involved.
Order No. P-RC-2021030011
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.
Work procedure
The following step applies to California dealers only.
Apply Proof of Correction Label (A 000 584 54 13) to area identified in Figure 1. Fill in the blank areas of the label. The campaign number for the California Proof of Correction is unique and must be entered as such (210311), your dealer code, and the date of the repair, using a black permanent marker.
Note: Clean bonding surface prior to affixing label.
Figure 1
The following step applies to California dealers only.
Provide the owner with the completed and signed Proof of Correction Certificate (A 000 584 42 14) Figure 2, after you scan a completed form and attach to the RO. The recall number for the California Proof of Correction is unique and must be entered as such (210311).
Figure 2
California Proof of Correction Parts Information
| Qty. | Part Name | Part Number |
| 1 | Sheet (CA Dealers Only) | A 000 584 42 14 |
| 1 | Label (CA Dealers Only) | A 000 584 54 13 |
Primary Parts Information
| Qty. | Part Name | Part Number |
| 4 | Spark plug | A 139 159 14 00 |
Warranty Information
Operation: Replace all spark plugs
| Damage Code | Operation Number | Labor Time (hrs.) |
| 15 900 09 7 | 02-1974 | 0.9 |
Note
Operation Number labor times are subject to change
P-RC-2021030011
SEOCONTENT-START
IMPORTANT SAFETY RECALL 2021030011
This notice applies to your vehicle, VIN:
Replace Spark Plugs
NHTSA Recall #21V124 and CA DMV #210311
April, 2021
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 2020 CLA-Class vehicles. Our records indicate that your vehicle is included in the affected population of vehicles.
What is the CONCERN?
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that in certain Model Year (“MY”) 2020 CLA-Class vehicles with a 4-cylinder gasoline engine, an incorrect type of a spark plug might have been installed which could affect the safety and emissions of the vehicle. As a result, increased mechanical wear of the spark plug from high-heat overload could occur over time and cause parts of the spark plug to possibly detach within the combustion chamber, leading to engine damage. If this occurs, the engine may stall, which could increase the risk of a crash.
What will your DEALER DO?
An authorized Mercedes-Benz dealer will replace the spark plugs on the affected vehicles. 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 less than 1 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 replace the spark plugs on the affected vehicles under Recall Campaign # 2021030011. 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.
Impacts from COVID-19: Your health and safety remain our top priority. The Mercedes-Benz dealerships remaining open for recall repairs and service are closely following the guidelines set forth by the CDC. Free Mobile Repair at your home or business as well as vehicle pick-up and delivery may be available. Your preferred authorized Mercedes-Benz dealer can confirm availability.
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.
A VIN-based recall lookup tool on our MBUSA.com website 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 www.mbusa.com/recall. Should 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) FOR-MERCEDES (1-800-367-6372).
FOR CALIFORNIA ONLY: A Proof of Correction certificate shall be issued to you by the servicing dealer (California only) showing that the vehicle has been repaired under the Recall Campaign. The certificate may be required by the Department of Motor Vehicles as a condition of vehicle registration or operation.
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,
•A remedy is available for your vehicle.
•Schedule an appointment with your authorizedMercedes-Benz dealer as soon as possible.
•This repair will be provided free of charge.
To find the most convenient authorized
Mercedes-Benz dealer from your smartphone, scan
the QR code to
the left.
Mercedes-Benz USA, LLC
Christian Treiber
Vice President
Customer Services
Mercedes-Benz USA, LLC
A Mercedes-Benz AG Company
One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone (770) 705-0600
IMPORTANT
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.
EXPORTED
LEASE, VEHICLE RETURNED
SCRAPPED
SOLD
STOLEN
OTHER
NEW OWNER INFORMATION
MY NEW NAME OR ADDRESS IS:
Last Name, First Name
Street Apt
City State ZIP
Email Address
Phone (numbers only) Mobile (numbers only)
———————————————– ———————————————————————————-
Date Signature
**** PLEASE DO NOT DETACH. RETURN COMPLETE LETTER ****
DO NOT USE THE ENCLOSED ENVELOPE FOR OTHER CORRESPONDENCE
VIN:
SEOCONTENT-END
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
| MERCEDES-BENZ | AMG CLA45 | 2020 |
8 Associated Documents
Recall Quarterly Report #1, 2021-2
RCLQRT-21V124-4818.PDF 211.124KB
Recall Acknowledgement
RCAK-21V124-3814.pdf 645.778KB
Defect Notice 573 Report
RCLRPT-21V124-1956.PDF 214.151KB
Manufacturer Notices(to Dealers,etc)- New Recall Campaign Initial Notification Spark Plug Replacement MY20 118 (CLA-Class)
Remedy Instructions and TSB
RCRIT-21V124-0572.pdf 441.676KB
Manufacturer Notices(to Dealers,etc)- Safety & Emissions Recall Campaign Launch Notification Replace Spark Plugs
RCMN-21V124-9668.pdf 598.837KB
ISSUED Owner Notification Letter(Part 577)
RCONL-21V124-7142.pdf 206.341KB
Recall Quarterly Report #3, 2021-4
RCLQRT-21V124-7526.PDF 211.308KB
Recalls Documents
- FITMENT CHECK FIRST - Please confirm your vehicle’s year, make, model, engine before purchase. This ignition coil and iridium spark plug kit is designed for compatible MERCEDES-BENZ vehicles, fit for 2008-2012 C300 3.0L, 2006-2011 E350 3.5L, 2006-2011 ML350 3.5L, 2010-2012 GLK350 3.5L, 2006-2009 C280 3.0L, 2006-2011 C350 3.5L, 2006-2009 CLK350 3.5L, 2006-2009 C230 2.5L, 2006-2013 R350 3.5L, 2005-2011 SLK350 3.5L, 2006-2008 SLK280 3.0L, 2009-2011 SLK300 3.0L, and other listed applications.
- COMPLETE IGNITION REPLACEMENT KIT - Includes 6 ignition coils and 6 pre-gapped iridium spark plugs for a more convenient ignition system replacement. Replacing both together helps reduce repeated repairs and separate part sourcing. Direct OEM replacement ignition coil and iridium spark plug kit engineered for exact fit by year, make, model, and engine. Recommended spark plug torque: 15-20N.m (11.06-14.75 ft·lb). Factory pre-lubricated with green dielectric grease for true easy DIY install.
- COMMON IGNITION-RELATED SYMPTOMS - Worn ignition coils or spark plugs may contribute to engine misfire, rough idle, hard starting, hesitation, engine vibration, or check engine light concerns (diagnostic trouble codes including P0300–P0308). This kit may help address these common symptoms when caused by worn ignition components.
- IRIDIUM SPARK PLUGS & DURABLE COILS - Fine-wire iridium spark plugs and epoxy-potted ignition coils are built to support stable ignition and consistent spark delivery. Heat-resistant and vibration-resistant construction helps provide reliable operation for daily driving conditions.
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- Includes original packaging and hardware
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- [Reference Number]: A-Premium Spark Plugs fit for 93911, LKR7AIX, XP5702, 08040K9000, BY480LKR7A, SAB330NG1709
- [Vehicle Fitment-1]: Compatible with Dodge Sprinter 2500 2007-2008 V6 3.5L, Sprinter 3500 2007-2008 V6 3.5L; Compatible with Freightliner Sprinter 2500 2007-2008 V6 3.5L, Sprinter 3500 2007-2008 V6 3.5L; Compatible with Mercedes-Benz C230 W204 2006-2009 V6 2.5L, C250 W204 2010-2012 V6 2.5L, C280 W204 2006-2007 V6 3.0L, C300 W204 2008-2012 V6 3.0L, C350 W204 2006-2011 V6 3.5L, CLK350 W204 2006-2009 V6 3.5L, E280 W211 2007-2007 V6 3.0L, E300 W211 2008-2009 V6 3.0L, E350 W211 2006-2011 V6 3.5L
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- [Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.032; ⑤Hex Size (IN): 5/8; ⑥Insulator Height (mm): 50.50; ⑦Reach (mm): 26.5; ⑧Thread Diameter (MM): 12.00
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- Compatibility: Ignition Coil Pack & Spark Plugs for 2006 2007 2008 2009 2010 2011 Mercedes Benz E350 V6 3.5L | 2006-2011 Mercedes Benz ML350 V6 3.5L | 2008-2012 Mercedes Benz C300 V6 3.0L | 2010-2011 Mercedes Benz C300 V6 3.5L | 2006-2011 Mercedes Benz R350 V6 3.5L | 2006-2007 Mercedes Benz C230 V6 2.5L | 2006-2007 Mercedes Benz C280 V6 3.0L |2005-2011 Mercedes Benz SLK350 V6 3.5L | 2006-2009 Mercedes Benz CLK350 V6 3.5L | 2010-2012 Mercedes Benz GLK350 V6 3.5L
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