Electrical system: 12v/24v/48v battery
Risk. 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.
NHTSA has logged 15 owner complaints about the 2019 Mercedes-Benz CLS 450, most often about the wheels. It is covered by 12 safety recalls, and for recall 20V-449 the manufacturer reports only 63% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through October 16, 2026. Updated daily.
15 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Wheels | 5 | 0 |
| Electrical system | 4 | 0 |
| Steering | 3 | 0 |
| Suspension | 2 | 0 |
| Tires | 2 | 0 |
| Engine | 2 | 0 |
| Service brakes | 1 | 0 |
| Back over prevention | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. 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.
Risk. A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency…
Risk. An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Risk. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Risk. Without the audible tone and blinking warning light to remind the front seat occupants that their seat belts are not buckled, they may forget to buckle their…
Risk. The electric PRE-SAFE®-function and the seat belt pretensioners may not deploy during a crash, increasing the risk of injury.
Risk. A malfunctioning engine coolant pump can increase coolant temperatures, possibly leading to an engine stall.
Risk. An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.
Risk. If the headlights are not properly adjusted, the driver may have reduced visibility, increasing the risk of a crash.
Risk. A car that cannot be properly steered has an increased risk of a crash.
Risk. An engine stall can increase the risk of a crash.
Risk. If a child seat is in the front seat and the passenger air bag is not deactivated, in the event of a crash, it can increase the risk of injury.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the CLS 450 median. How we score
Recent wheels complaints filed with NHTSA, shortened. Personal details are removed.
I am getting repeated flats in this car after hitting small bumps in the car. Whether I am on the freeway or driving around town. I have hit bumps that will blow out the tire. Here are more complaints from consumers : [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5…
I have had to replace 3 wheels at great cost due to cracks. I believe the wheels are defectively designed. The wheels cannot support the vehicle's weight. The cast iron aluminum wheels together with the low profile run flat tires contribute to a road hazard and dangerous condition. I understand…
I had a slow leak in the rear passenger tire for a few weeks now so I took it to the neighborhood tire shop. No nail or puncture was discovered but a hairline crack in the rear wheel. The tire shop manager advised me to call the dealership and ask the part to be replaced as this is a very low…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.