The 2021 Mercedes-Benz CLS Class has 3 recalls, the most serious involving a loose ground connection in the 48-volt electrical system that can cause wiring to overheat and melt, creating a fire risk.
Two recalls affect occupant safety in a crash. A problem with the front seat position switches can prevent the airbags and seatbelt force limiters from deploying or engaging correctly, reducing their ability to protect occupants. Separately, the passenger seatbelt assemblies on certain vehicles contain defective automatic locking retractors that fail to lock the belt tightly enough to secure a child safety seat. The vehicle's lower anchor system is not affected by that defect and can still be used to attach a child seat, but the belt-secured method may not hold properly in a collision.
At a glance
What can fail
The bolt connecting the 48-volt ground wire may not be tight enough, causing the wiring to overheat and melt.
What the fix does
A dealership will inspect the ground connection and tighten the bolt if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The passenger seat belt's automatic locking mechanism may be defective, preventing it from properly securing a child seat. The vehicle's lower anchor system is unaffected.
What the fix does
A dealer will inspect the passenger seat belts and replace them if needed at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front seat position switches may malfunction, preventing airbags and seat belt force limiters from operating correctly during a crash.
What the fix does
Dealers will replace the front seat position switches to restore proper airbag and seat belt force limiter function.
Summarized — see the official notice for exact wording, dates, and contacts.
