2020 Mercedes-Benz C-Class Cabriolet recalls

• Structure#2026364July 24, 2026

  36,862 units affected

  Issue: On certain vehicles, moisture could enter the driver-side door lock microswitch and cause it to corrode. As a result, the microswitch may fail to automatically engage the parking brake and/or the auto park feature when the door is opened. If this happens, the vehicle could roll away. Note: This problem could also cause the radio and/or interior lights to remain on after exiting the vehicle. Safety Risk: A parked vehicle that rolls away could create the risk of an injury or a crash. Corrective Actions: To reduce the safety risk, Mercedes-Benz recommends that you should always use the parking brake when you park. Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the driver-side door lock.

• Structure#2023673December 15, 2023

  110 units affected

  Issue: On certain vehicles, the plastic panel located between the windshield and the panoramic sunroof may not have been attached correctly during a prior service repair. Over time, the panel could loosen and separate from the vehicle. Note: This is an expansion of Transport Canada recall 2021-170. Safety Risk: A panel that detaches from a moving vehicle could create a road hazard for others and 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 front roof panel.

• Visual System#2022177April 12, 2022

  10,556 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 dealership to update the rearview camera software.

• Fuel System#2021755December 13, 2021

  20 units affected

  Issue: On certain vehicles, small particles could damage the seals between the fuel rail and fuel injectors. If this happens, there could be a fuel leak in the engine compartment. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to replace the fuel rail and fuel injectors.

• Lights And Instruments#2021415July 5, 2021

  200 units affected

  Issue: On certain vehicles, a label on the headlamp assembly may contain incorrect information for a service technician. As a result, the headlamps may not get adjusted correctly after a repair. This could cause glare and/or confusion for oncoming drivers. Note: This recall only affects certain vehicles equipped with LED headlamps. Safety Risk: Headlamps that cause glare or confusion for oncoming drivers could increase the risk of a crash. Corrective Action: Mercedez-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to replace the headlamps.

• Structure#2021170March 22, 2021

  229 units affected

  Issue: On certain vehicles, the plastic panel located between the windshield and the panoramic sunroof may not have been attached correctly during a prior service repair. Over time, the panel could loosen and separate from the vehicle. Safety Risk: A panel that detaches from a moving vehicle could create a road hazard for others and 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 replace the front roof panel.

• Other#2021112March 3, 2021

  9 units affected

  Issue: On certain vehicles equipped with the emergency calling (eCall) system, the communications module could be deactivated. As a result, the eCall may 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 instruct you to take your vehicle to a dealer to inspect the communication module and verify that it is properly activated.

• 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.

• Seats And Restraints#2021045February 3, 2021

  3,038 units affected

  Issue: On certain C-Class cabriolet models equipped with the PRE-SAFE system, the front seat belts may not retract completely to their storage position. Canadian regulations require seat belts to retract fully when not in use. Safety Risk: If the seat belt does not fully retract, the occupant may find the operation of the seat belt inconvenient and not wear it. This 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 function of the front seat belt retractors and adjust the dampening foam, if necessary.

• 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.

• Steering#2020512October 27, 2020

  313 units affected

  Issue: On certain vehicles, the wiring harness for the power steering control unit may have been damaged during production. As a result, moisture may enter the wiring harness and cause a loss of power steering assist or a short circuit. Safety Risk: A loss of power steering assist may result in a sudden increase in steering effort, especially at low speeds. This could increase the risk of a crash. A short circuit could create a fire risk. Corrective Action: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the wiring harness for the steering control unit and replace it, if necessary.

• Brakes#2020307July 6, 2020

  454 units affected

  Issue: On certain vehicles, the software for the electronic stability control system (ESP) was not programmed correctly. As a result, the ESP system may not function as intended in certain driving situations. Safety Risk: A stability control system that does not work properly 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 software for the ESP system.

• Engine#2020282June 22, 2020

  49 units affected

  Issue: On certain vehicles, the screws that attach the oil lines to the turbocharger may not have been properly tightened. If the screws are not properly tightened, oil could leak onto hot surfaces in the engine bay. Safety Risk: Engine oil that leaks onto a hot surface could cause a fire. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to inspect and repair the turbocharger oil feed and return line mounting, as necessary.

• Seats And Restraints#2020253June 9, 2020

  142 units affected

  Issue: On certain vehicles, the lock that secures the backrest on the left-rear seat may be defective. As a result, cargo in the trunk could load the backrest in a crash and cause the lock to fail. If this happens, the seat backrest could tilt forward. Note: This recall only affects vehicles equipped with rear seat backrests that can be unlocked electronically. Safety Risk: A backrest that tilts forward in a crash could increase the risk of injury. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to replace the backrest lock on the left-rear seat. As a precautionary measure, you should avoid loading heavy items in the trunk until the recall repairs are completed.

• Electrical#2020046February 7, 2020

  122 units affected

  Issue: On certain vehicles, the communications module for the emergency call system (eCall) may be damaged. As a result, the GPS coordinates of the vehicle may be incorrectly transmitted or missing when an emergency call is made. Safety Risk: If the vehicle’s GPS coordinates are unavailable, or provided incorrectly, there could be a delay or no response from emergency services. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to replace the communications module.

Canadian data updated August 24, 2026

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