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2021 Mercedes-Benz CLS 450

8 open recalls

Read the first one before you drive it again. Every repair below is free.

Key facts

  • Recall repairs are free by law, however old the vehicle is.
  • You don't need to be the original owner to have it fixed.
  • There is no deadline — an open recall stays open until it's repaired.

Open recalls

Source: NHTSA · synced 29 Jul 2026 13:14
Fire risk Electrical system

An overheated ground cable increases the risk of a fire.

The 48-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheating.

What to do: Park away from buildings and book the repair now.

Free repair · 12,191 vehicles affected Read campaign 24V100000 on NHTSA.gov ↗
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Repair when you can Electrical system

The inability to operate safety features (eCall system, hazard lights, electric seats, or automatic door locks) can increase the risk of injury during a crash.

The 12-Volt battery in the trunk may not be properly secured, which, in the event of a crash, can cause electrical connection failure, disabling various safety features including, emergency call (eCall) system, electric seat adjustment, hazard warning lights, and automatic door locks.

What to do: Book it in at your next service. There is no deadline and no charge.

Free repair · 19,968 vehicles affected Read campaign 22V733000 on NHTSA.gov ↗
Repair when you can Communication

A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.

Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

What to do: Book it in at your next service. There is no deadline and no charge.

Free repair · 242,722 vehicles affected Read campaign 22V365000 on NHTSA.gov ↗
Repair soon Air bags

Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.

The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.

What to do: Book this in with a dealer now. It affects a safety system.

Free repair · 542 vehicles affected Read campaign 21V527000 on NHTSA.gov ↗
Repair soon Seat belts

An unsecured child restraint system can increase the risk of injury during a crash.

The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

What to do: Book this in with a dealer now. It affects a safety system.

Free repair · 4,917 vehicles affected Read campaign 21V483000 on NHTSA.gov ↗
Repair when you can Back over prevention

A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.

Please refer to MBUSA's recall report for specific vehicle model details. The MBUX multimedia system software may cause the display to remain black, or reboot after startup.

What to do: Book it in at your next service. There is no deadline and no charge.

Free repair · 343,191 vehicles affected Read campaign 21V354000 on NHTSA.gov ↗
Repair when you can Seats

Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.

Please refer to MBUSA's recall report for specific vehicle model details. A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash.

What to do: Book it in at your next service. There is no deadline and no charge.

Free repair · 8,634 vehicles affected Read campaign 21V230000 on NHTSA.gov ↗
Repair when you can Communication

Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.

What to do: Book it in at your next service. There is no deadline and no charge.

Free repair · 1,292,258 vehicles affected Read campaign 21V058000 on NHTSA.gov ↗

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