RoadVitals

2023 Mercedes-Benz CLS 450 Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
3
Latest Mar 16, 2026
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
1
Reports on file since Aug 15, 2024

What this page shows

Our database holds 3 NHTSA owner-reported complaints for the 2023 Mercedes-Benz CLS 450. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–3 of 3

Other / unspecified
Filed Mar 16, 2026

Description of Defect: I am reporting a chronic and dangerous structural failure of the factory-equipped alloy wheels on my 2023 Mercedes-Benz CLS 450 4MATIC. Since purchase, this vehicle has suffered 8 documented incidents of wheel failure, consisting of 5 rim cracks and 3 complete wheel replacements. The failures are occurring under normal, paved driving conditions in the Dallas-Fort Worth area. This persistent cracking indicates a severe structural design defect where the wheel’s load rating is insufficient for the vehicle’s weight and low-profile tire configuration. Safety Risk: Each failure results in sudden and unpredictable loss of tire pressure. This creates a high risk of catastrophic tire deflation (blowouts) at highway speeds, which can lead to loss of vehicle control. Despite 7 prior repair/replacement attempts by both authorized Mercedes-Benz dealerships (Park Place Dallas) and independent specialists, the defect persists. The vehicle is currently at the dealership for its 8th failure. I believe this wheel configuration is fundamentally unfit for purpose and poses a recurring threat to the safety of the driver, passengers, and other motorists.

NHTSA ID
11724619
Incident
Dec 11, 2024
Other / unspecified
Filed Feb 8, 2025

This vehicle has 6,600 miles on it. All 4 wheels have been bent driving on normal roads at normal speed. There have been 2 sidewall tire bubbles as a result. And after having all wheels straightened one of the wheels has now cracked. This caused the tire to deflate and the vehicle can no longer be driven. Is speaking with a wheel shop this is a known problem with this vehicle. Mercedes will not do anything about it.

NHTSA ID
11641516
Incident
Feb 2, 2025
Other / unspecified
Filed Aug 15, 2024

The car is equipped with Continental ProContact GX SSR 245/40R19 runflat tires in the front. Since January of this year I have replaced the front tires 5 times. Once for the left front and four times for the right front. One time it was due to a bubble in the sidewall. Other four were from the sidewall tearing vertically in 2 places a few inches from each other. The pictures attached show how the tire failed four times. In the cases where the sidewall failed in some cases was from running over what felt like a shallow pothole and/or broken pavement. The broken pavement is one that I have gone over with another with non run flat tires multiple times without issue.

NHTSA ID
11608769
Incident
Jul 29, 2024

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .