AutoDefect IQ

2021 Mercedes-Benz Amg Cls53 problems, complaints & recalls

Most-reported problem areas: Electrical System:adas:autonomous/Self Driving (1)

1
Complaints
10
Recalls
163
Service bulletins
0
Crashes reported
0
Fires reported
0
Deaths

Safety recalls (10)

Electrical System:wiring 2024-06-14 · campaign 24V445000 · 22,422 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLS 53 4MATIC, 2019-2023 E 53 4MATIC Cabriolet, E 53 4MATIC Coupe, E 53 4MATIC Sedan, 2021-2024 GT 43 4MATIC, and 2019-2025 GT 53 4MATIC vehicles. The transmission wiring harness connection might not have been correctly wired during a prior recall repair, and during production. which can expose the electrical connector to corrosion, and result in an electrical short-circuit.

Risk: An electrical short circuit can increase the risk of a fire.

Fix: Dealers will replace the two-part wiring harness and connector, free of charge. Interim letters, notifying owners of the safety risk, were mailed August 9, 2024. A second notice will be sent once the final remedy is available. Owners may contact MBUSA customer service at 1-877-496-3691. MBUSA's number for this recall is 2024100002/3. This recall supersedes recall 22V-533. Vehicles repaired under the prior recall will still need to have the new remedy performed.

Electrical System:wiring 2024-02-09 · campaign 24V100000 · 12,191 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 CLS450, E450, E450 All-Terrain, AMG E53, AMG GT43, AMG GT53, and 2021 AMG CLS53 vehicles. The 48-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheating.

Risk: An overheated ground cable increases the risk of a fire.

Fix: Dealers will inspect the 48-volt ground cable connection and repair it as necessary, free of charge. Owner notification letters were mailed March 22, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024MMNNNN.

Electrical System:12v/24v/48v Battery 2022-09-30 · campaign 22V733000 · 19,968 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 CLS450 Coupe and AMG E53, 2019-2021 AMG CLS53 Coupe, and 2021-2022 E450 vehicles. The 12-Volt battery in the trunk may not be properly secured, which, in the event of a crash, can cause electrical connection failure, disabling various safety features including, emergency call (eCall) system, electric seat adjustment, hazard warning lights, and automatic door locks.

Risk: The inability to operate safety features (eCall system, hazard lights, electric seats, or automatic door locks) can increase the risk of injury during a crash.

Fix: Dealers will secure the 12V battery, free of charge. Owner notification letters were mailed January 20, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022100009.

Electrical System:wiring 2022-07-22 · campaign 22V533000 · 16,977 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2022 AMG GT43, 2019-2022 AMG E53, E53 Coupe, E53 Cabriolet, AMG GT53, and 2019-2021 AMG CLS53 vehicles. The transmission wiring harness may be misrouted, which can expose the electrical connector to corrosion, and result in an electrical short-circuit.

Risk: An electrical short-circuit can increase the risk of a fire.

Fix: Dealers will inspect and repair the electrical connector, as necessary. Dealers will also reroute the harness and install an additional bracket. All repairs will be performed free of charge. Owner notification letters were mailed October 14, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022080010.

Communication: Auto Crash Notification 2022-05-20 · campaign 22V365000 · 242,722 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.

Fix: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

Steering: Steering Wheel/Handle Bar 2022-03-25 · campaign 22V189000 · 8,396 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2022 C-Class, E-Class, S-Class, SL, EClass Coupe/Convertible, CLS, AMG GT 4-doors Coupe, and EQS vehicles with a heated leather steering wheel. Due to a software error in the hand detection control unit, the hands-off detection might not detect when the driver's hands are away from the steering wheel when using the Active Distance Assist DISTRONIC system.

Risk: Deactivated hands-off detection will prevent DISTRONIC system features from functioning, including warnings to grab the steering wheel and calling first responders as part of the Active Emergency Stop Assist, which can increase the risk of a crash or injury.

Fix: Dealers will update the hand detection control unit software for the DISTRONIC system, free of charge. Owner notification letters were mailed May 6, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022040010.

Air Bags:sensor:side Impact 2021-07-12 · campaign 21V527000 · 542 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.

Risk: Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.

Fix: Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021070032/33.

Seat Belts:rear/Other:retractor 2021-06-25 · campaign 21V483000 · 4,917 vehicles

Defect: Mercedes-Benz, LLC (MBUSA) is recalling certain 2021 G550, AMG G63, E350, E450, AMG CLS53, AMG E53, AMG GT43, AMG GT53, AMG GT63, 2021-2022 CLS450, and AMG E63 vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Risk: An unsecured child restraint system can increase the risk of injury during a crash.

Fix: Dealers will inspect, and replace as necessary, the rear seat belt assemblies, free of charge. Owners notified of the voluntary recall campaign by an interim letter on August 13, 2021. A final letter was mailed on September 24, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

Back Over Prevention: Sensing System: Camera 2021-05-14 · campaign 21V354000 · 343,191 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comp

Risk: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.

Fix: The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning June 28, 2021. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's number for this recall is 2021050012.

Seat Belts:pretensioner 2021-04-01 · campaign 21V230000 · 8,634 vehicles

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash.

Risk: Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.

Fix: MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040016.

Service bulletins (163)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Power Train 2026-09-26 · LI27.00-P-073124 · Service Bulletin/Repair Instructions

complaint customer complaints relating to automatic transmission 725.0 (nag3 classic /9g‑tronic automatic transmission) and 725.1 (nag3 facelift/9g‑tronic automatic transmission facelift) for faster, more effective and more targeted diagnosis, intelligent predictive repair (ipr) has been developed a

Engine 2026-09-26 · LI18.00-P-073137 · Service Bulletin/Repair Instructions

complaint sporadic warning message in instrument cluster "engine oil pressure, stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. cause directional control valve may stick. remedy 1‑ read off oil level in instrument cluster and correct if necessary. 2‑ perform approx

Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions

complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra

Engine 2026-09-17 · LI20.10-P-075374 · Service Bulletin/Repair Instructions

complaint red coolant warning in instrument cluster. fault codes u019f00 or u019f87 current/stored in mrg1 control unit. cause various causes remedy perform guided test for fault code u019f with xentry diagnosis. verify the following connections are clean and tight. correct any problems and retest p

Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions

complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,

Power Train 2026-09-14 · LI27.10-P-075869 · Service Bulletin/Repair Instructions

complaint only vehicles with a variable transfer case are affected. this can be identified through control unit n45 or n15/7 in the quick test. when accelerating with light load, vibrations or jolting sensation may come from the drivetrain. it may be mistaken for a harsh shift. cause modified oil qu

Showing the 6 most recent of 163 bulletins. Search all of them free at nhtsa.gov.

What owners report

2022-08-17 · Electrical System:adas:autonomous/Self Driving · 6,890 mi

“the contact owns a 2021 mercedes-benz amg cls53. the contact stated that she drove the vehicle for two seconds when the active brake assist inadvertently engaged without warning. the failure occurred on numerous occasions. additionally, the contact stated that the screen interactive system failed to properly operate, and without warning the screen …”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

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