2021 Mercedes-Benz CLS Class recalls

• Electrical#2024342June 14, 2024

  2,691 units affected

  Issue: On certain vehicles, the recall repairs completed by a Mercedes-Benz dealer during recall 5491309 (Transport Canada recall no. 2022-397) may not have been done correctly. As a result, a second repair is required. On certain vehicles equipped with 4-wheel drive (4Matic), the transmission wiring harness may not be routed correctly. As a result, water could enter the wiring harness connector and cause a short circuit. Note: This recall replaces Transport Canada recall no. 2022-397. Safety Risk: A short circuit can create the risk of a fire, even while the vehicle is parked and turned off. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the transmission wiring harness.

• Electrical#2024081February 9, 2024

  1,784 units affected

  Issue: On certain vehicles, the bolt for the 48 V ground connection may not have been tightened properly. As a result, the wiring could overheat and melt. Safety Risk: Wiring that overheats and melts can create the risk of a fire. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to inspect and, if necessary, tighten the ground connection.

• Fuel System#2023672December 15, 2023

  7,531 units affected

  Issue: On certain vehicles, the fuel delivery module could fail. If this happens, the engine may run rough or may not start. This could also result in a sudden loss of engine power while driving. Note: This is an expansion of Transport Canada recall 2023-353. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel delivery module.

• Fuel System#2023353June 23, 2023

  18,461 units affected

  Issue: On certain vehicles, the fuel delivery module could fail. If this happens, the engine may run rough or may not start. This could also result in a sudden loss of engine power while driving. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel delivery module.

• Electrical#2022547September 29, 2022

  2,630 units affected

  Issue: On certain vehicles, the 12 V battery (in the trunk) could move in a crash. As a result, the battery electrical connexions could detach. If this happens, the post-crash safety systems (like the emergency calling (eCall) system, electric seat adjustment, hazard warning lights, and automatic door unlocking) may not work. Safety Risk: Safety systems that don't work correctly could increase the risk of injury. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealership to add a bracket to better secure the battery.

• Electrical#2022397July 22, 2022

  2,747 units affected

  Issue: On certain vehicles equipped with 4-wheel drive (4Matic), the transmission wiring harness might not be routed correctly. As a result, water could enter the wiring harness connector and cause a short circuit. Safety Risk: A short circuit can create the risk of a fire, even while the vehicle is parked and turned off. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealership to inspect the connector on the transmission wiring harness, and repair it if necessary. Additionally, the dealer will install a bracket to improve the routing of the transmission wiring harness.

• Other#2022263May 20, 2022

  49,728 units affected

  Issue: On certain vehicles equipped with the emergency calling (eCall) system, the SIM card for the communications module could disable itself. If this happens, the eCall system would not work properly when there is a crash or when the SOS button is pressed. Safety Risk: If the eCall system does not work in an emergency situation, there could be a delay in response from emergency services. Corrective Actions: Mercedes-Benz will notify owners by mail and send a wireless over-the-air software update to each vehicle. If the update cannot be completed successfully, you will be notified to schedule an appointment to have the update performed by a dealer.

• Accessories#2022140March 25, 2022

  1,815 units affected

  Issue: On certain vehicles, the DISTRONIC driver assistance system might not detect when the driver removes their hands from the steering wheel. If the driver has a medical emergency (and is unable to drive or loses consciousness), the active emergency stop assist and emergency call functions would not activate. Note: This recall only affects vehicles equipped with a heated leather steering wheel. Safety Risk: If the active emergency stop and emergency call features do not work in an emergency situation, there could be an increased risk of a crash, and there could be a delay in response from emergency services. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealership to update the software for the hand detection system.

• Seats And Restraints#2021493August 6, 2021

  361 units affected

  Issue: On certain vehicles, the passenger seat belt assemblies may contain defective automatic locking retractors (ALR). As a result, the seat belts may not properly lock to secure a child seat. Note: The vehicle's lower universal anchorage system (UAS) is not affected by this defect and may still be used to secure a child seat. Safety Risk: A seat belt that is used to secure a child restraint but is not properly locked could increase the risk of injury in a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the seat belts. They will be replaced, if necessary.

• Visual System#2021291May 14, 2021

  40,646 units affected

  Issue: On certain vehicles, a software problem could cause the rearview camera image not to appear on the central display. Canadian regulations require the rearview image to display when the transmission is shifted into reverse gear. Safety Risk: A rearview camera image that does not display could reduce a driver's ability to see behind the vehicle while backing up. This could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and send a wireless over-the-air software update to each vehicle. If the update cannot be completed successfully, you will be notified to schedule an appointment to have the update performed by a dealer.

• Airbag#2021207April 7, 2021

  1,082 units affected

  Issue: On certain vehicles, there may be a problem with the front seat position switches. As a result, the airbags and seat belt force limiters may not work properly in a crash. Safety Risk: Airbags or seat belts that do not work properly could create an increased risk of injury in a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to replace the seat position switches.

• Electrical#2021064February 12, 2021

  75,231 units affected

  Issue: On certain vehicles equipped with the emergency calling (eCall) system, the communications module may temporarily lose power during a crash. If this happens, the wrong vehicle location may be transmitted through the eCall system. This could cause emergency responders to be sent to the wrong location. Safety Risk: If the eCall system sends out the wrong location after a crash, there could be a delay in response from emergency services. Corrective Actions: Mercedes-Benz will notify owners by mail and send a wireless over-the-air update to each vehicle. If the update cannot be completed successfully, you will be notified to schedule an appointment to have the update performed by a dealer.

• Accessories#2021041February 1, 2021

  41,731 units affected

  Issue: On certain vehicles, a software problem could cause the rearview camera image not to appear on the central display. Canadian regulations require the rearview image to display when the transmission is shifted into reverse gear. Safety Risk: A rearview camera image that does not display could reduce a driver's ability to see behind the vehicle while backing up. This could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to update the head unit software.

Canadian data updated August 24, 2026

No recalls found for this make, model, and year.