2021 Mercedes-Benz C-Class

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.

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.

Issue: On certain vehicles, the lines for the under-hood fire prevention system may not be properly connected. As a result, the system may not reduce the chance of an engine fire after a crash. Safety Risk: There could be an increased risk of an engine compartment fire after a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the under-hood argon gas line connections in the fire prevention system. They will be repaired, if necessary.

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.

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.

Issue: On certain C and E-Class convertible models, the head restraints on the rear seats may not have been properly assembled. As a result, the head restraints may not latch properly, and could move or detach from the seat in a crash. Safety Risk: Head restraints that move or detach in a crash could increase the risk of an injury. Corrective Action: Mercedes-Benz will contact owners by mail and instruct you to take your car to a dealer to inspect and replace the rear seat head restraints, as required. To reduce the safety risk, Mercedes-Benz recommends that you should remove the rear seat head restraints and not use the rear seats until the recall repairs are completed.

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.

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.

Issue: On certain vehicles, the headlamp connectors may not be water-tight. As a result, moisture could enter the headlamp and cause it to fail. Safety Risk: A headlamp that fails could reduce visibility 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 dealership to inspect the headlamps and their connectors. The headlamp(s) and connectors will be replaced, if necessary.

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.

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.

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.

Issue: On certain vehicles, the headlamps were not adjusted properly at the factory. Safety Risk: Headlamps that aren't adjusted properly could cause reduced visibility and/or glare for oncoming drivers, 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 inspect the headlamps, and adjust them as necessary.