Mercedes-Benz CLS Class recalls

• Electrical#2024615October 18, 2024

  1,371 units affected

  Issue: 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 is an expansion of Transport Canada recall no. 2024-342. 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#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.

• Structure#2022740December 22, 2022

  10,460 units affected

  Issue: On certain vehicles, the sunroof glass may not be properly attached to the sliding roof frame. Over time, the glass can become loose and could separate from the vehicle. Note: Vehicles that were inspected under Transport Canada recalls 2019-668 and 2021-478 also require this inspection. Safety Risk: A sunroof that detaches from the 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 inspect the bonding of the sunroof glass. Dealers will replace the sliding roof, if necessary.

• 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.

• Structure#2021478July 23, 2021

  432 units affected

  Issue: This recall is for certain vehicles inspected under Mercedes-Benz recall 7891003 (Transport Canada recall 2019-668) that require a second inspection. On certain vehicles, the sunroof glass may not be properly attached to the sliding roof frame. Over time, the glass can become loose and could separate from the vehicle. Note: This recall affects 2006 and 2007 models originally equipped with a sunroof. Additionally, some 2001-2011 models may have had an affected sunroof installed during a repair. Safety Risk: A sunroof that detaches from the 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 inspect the bonding of the sunroof glass. Dealers will replace the sliding roof, 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.

• Structure#2019668December 23, 2019

  30,219 units affected

  Issue: On certain vehicles, the sunroof glass may not be properly attached to the sliding roof frame. Over time, the glass can become loose and could separate from the vehicle. Note: This recall affects 2006 and 2007 models originally equipped with a sunroof. Additionally, some 2001-2011 models may have had an affected sunroof installed during a repair. Safety Risk: A sunroof that detaches from the 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 inspect the bonding of the sunroof glass. Dealers will replace the sliding roof, if necessary.

• Seats And Restraints#2019554November 6, 2019

  3,569 units affected

  Issue: On certain vehicles, there may be a problem with the front seat belt buckles. This could cause the seat belt warnings to turn on, even if the front seat belts are buckled. If the driver ignores these warnings, the PRE-SAFE and airbag systems may not function properly. Safety Risk: A seat belt pretensioner or airbag system that does not work properly 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 check the front seat belt buckles and replace them if necessary.

• Electrical#2019424August 22, 2019

  195 units affected

  Issue: On certain vehicles equipped with a 6-cylinder gasoline engine, the wiring to the engine coolant pump could contact and become damaged by the engine fan. If this occurs, it could cause the engine coolant pump to stop working and the engine to overheat and stall. This could also cause the 48V on-board electrical system to deactivate while the engine is running. Under this condition the vehicle could be continued to be driven, however, the engine could not be restarted after it is switched off by the ECO start/stop function or the glide mode. Safety Risk: A loss of engine power and/or a loss of power to electrical systems could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail. Owners will be instructed to take their vehicle to a dealer to inspect, and if necessary, replace the wiring to the coolant pump. Dealers will also re-route the wiring to prevent contact with the engine fan.

• Brakes#2019357July 23, 2019

  755 units affected

  Issue: On certain vehicles equipped with the Driver Assistance Package, a software problem may cause the Active Brake Assist feature not to work properly. This could affect the feature’s ability to help reduce or avoid a crash. While the system will still provide audible and visual warnings, the autonomous braking might not occur. Safety Risk: If the brake assist system does not function properly, there could be an increased risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and instruct them to take their vehicle to a dealer to update the radar sensor control unit software.

• Lights And Instruments#2018727December 20, 2018

  126 units affected

  Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 108 - Lighting System and Retroreflective Devices. Vehicles may have been assembled with headlamps that allow for horizontal adjustment, which is contrary to the requirements of the standard. This could reduce vehicle visibility, or could adversely affect the vision of oncoming drivers during low-light and night-time conditions, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will install sealing caps on the headlamps to seal the adjustment screws.

• Steering#2018724December 20, 2018

  22,346 units affected

  On certain vehicles originally sold or currently registered in areas of heavy road salt usage during winter months (Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland & Labrador), the bolts that attach the electric power steering assist motor to the steering gear housing may corrode and break. This could cause a loss of power steering assist. The resulting increase in steering effort could create the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace the mounting bolts and apply a corrosion protection coating to the gear housing and bolts. If the bolts bolt cannot be removed, a replacement steering gear will be installed.

• Airbag#2018410August 3, 2018

  32 units affected

  On certain cars, the airbag system may not turn off the airbag when a child seat is used in the front passenger seat. In the event of a crash with an airbag deployment, this could create a risk of injury to a child. Correction: Dealers will replace the passenger seat cushion. Note: Child seats should not be used in the front passenger seat until the recall is completed.

• Engine#2015359August 7, 2015

  9 units affected

  On certain vehicles, the rubber seal at the top edge of the secondary bulkhead of the engine compartment may have been damaged during manufacturing. Should a sufficient length of rubber seal be displaced from the bulkhead, and the seal were to drop down, it could result in the loose end of the seal contacting exhaust components. This could increase the risk of fire resulting in injury and/or damage to property. Correction: Dealers will replace the rubber seal in the engine compartment.

• Lights And Instruments#2015099March 10, 2015

  2,172 units affected

  Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard 108 - Lighting System and Retro reflective Devices. Rear side markers may not have been programmed properly and may fail to meet the photometric performance requirements of the standard. This could reduce vehicle conspicuity, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will reprogram the signal acquisition module.

• Structure#2012373November 5, 2012

  1 units affected

  On certain vehicles, the four bolts securing the secondary hood latch striker plate may have been insufficiently tightened and could loosen. If two or more bolts were to loosen, the secondary latch could become ineffective. If the engine hood was not closed properly, both primary hood locks were not latched and the driver were to ignore the hood open warning message in the instrument cluster, the ineffective secondary latch could allow the hood to open while driving, increasing the risk of a crash causing injury and/or property damage. Correction: dealers will inspect and retighten bolts if necessary.

Canadian data updated August 24, 2026