Spark Plug Replacement – 2020 Mercedes-Benz CLA-Class

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-BenzeBay logo USA, LLC

Components ELECTRICAL SYSTEM

Potential Number of Units Affected 7

 

Summary

Mercedes-BenzeBay logo 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-BenzeBay logo Dealer Principals, General Managers, Sales Managers, Service Managers, Parts ManagersFROM:  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 IDCampaign 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

IssueMercedes-BenzeBay logo AG (“MBAG”), the manufacturer of Mercedes-BenzeBay logo 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 Weโ€™re DoingMBUSA will conduct a voluntary recall. An authorized Mercedes-BenzeBay logo dealer will replace the affected spark plugs on the affected vehicles.
PartsAn additional notification will be sent when the remedy is available.

Vehicles Affected

Vehicle Model Year(s)2020
Vehicle ModelCLA-Class

Vehicle Populations

Total Recall Population7
Total Vehicles in Dealer Inventory0
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 โ€œOPENโ€ 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 TimelineCustomer may be contacted by the CAC. Customer letter will be mailed approximately at the time of launch.
AOMS/SOMSAOMs โ€“ This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet PartnersThis 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-BenzeBay logo Dealer Principals, General Managers, Sales Managers, Service Managers, Parts ManagersFROM:  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 IDCampaign Desc. :Replace Spark Plugs
2021030011210311 21V124 21P1590009
This is to notify you of a Safety & Emissions Recall Campaign launch to replace the spark plugs on 7 Model Year  (โ€œMYโ€) 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

IssueMercedes-BenzeBay logo AG (“MBAG”), the manufacturer of Mercedes-BenzeBay logo 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 Weโ€™re DoingMBUSA will conduct a voluntary recall. An authorized Mercedes-BenzeBay logo dealer will replace the spark plugs on the affected vehicles.
PartsParts are available and can be ordered as necessary.

Vehicles Affected

Vehicle Model Year(s)2020
Vehicle ModelCLA-Class

Vehicle Populations

Total Recall Population7
Total Vehicles in Dealer Inventory0
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 โ€œOPENโ€ 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 (โ€œPOCโ€) 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 TimelineCustomer may be contacted by the CAC. Customer letter will be mailed approximately at the time of launch.
AOMS/SOMSAOMs โ€“ This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet PartnersThis 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-BENZeBay logo CENTERS
SUBJECT:Model CLA-Class (118 platform)
Model Year 2020
Replace Spark Plugs

 

Mercedes-BenzeBay logo AG (“MBAG”), the manufacturer of Mercedes-BenzeBay logo 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-BenzeBay logo 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.

Proof of Correction 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).

Proof of Correction Certificate

Figure 2

 

California Proof of Correction Parts Information

Qty.Part NamePart Number
1Sheet (CA Dealers Only)A   000 584 42 14
1Label (CA Dealers Only)A   000 584 54 13

 

Primary Parts Information

Qty.Part NamePart Number
4Spark plugA 139 159 14 00

 

Warranty Information

Operation: Replace all spark plugs

Damage Code Operation Number Labor Time (hrs.)
15 900 09 702-19740.9

 

Note

Operation Number labor times are subject to change

 

P-RC-2021030011

 



1 Affected Product

Vehicle

MAKEMODELYEAR
MERCEDES-BENZeBay logoAMG CLA452020

 


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)

RCMN-21V124-2967.pdf 418.3KB

 


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

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V124&docType=RCL

 


 

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  • [Exceptional Ignitability]: Designed alongside OEMs and engineered for maximum ignition performance
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Bestseller No. 3
BDFHYK Ignition Coil Pack UF535 and Iridium Spark Plug 95983 Compatible with Mercedes-Benz C230 C250 C280 C300 C350 E280 E300 E350 R350 ML350 SLK280 CLK350 GLK350 Dodge Sprinter 2500 Set of 6
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Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API


 

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