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2023 Mercedes-Benz C-Class problems, recalls and owner complaints
What the 2023 Mercedes-Benz C-Class has been recalled for and what owners report, from official government data. Updated October 25, 2026.
- 0safety recalls
- 26owner complaints
- 2crash reports
- 0fire reports
- 1injury reported
26 complaints, against an average of 199 for the other 14 Mercedes-Benz C-Class model years.
Every Mercedes-Benz C-Class model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2023 Mercedes-Benz C-Class?
The components named most often in the 26 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
What symptoms do 2023 Mercedes-Benz C-Class owners describe?
Found by reading the text of all 26 owner complaints. Tap a symptom for the answer, a real owner quote and any related recall.
Has the 2023 Mercedes-Benz C-Class been recalled?
NHTSA lists no safety recalls for the 2023 Mercedes-Benz C-Class as of October 25, 2026. Recalls can be issued at any time, so check your VIN before you rely on this.
Is the 2023 Mercedes-Benz C-Class recalled in the UK or Europe?
Recalls issued by the UK's DVSA and through the EU's Safety Gate system that cover this model and build period. European models can differ from U.S. ones, and "years estimated" means the recall gave no build dates, so confirm your own car with your registration or VIN.
UK DVSABolting of Steering Coupling
Risk: Mercedes-Benz AG has determined that on certain C-Class (206 platform) GLC (254 platform) and EQE (295 platform) vehicles the bolting of the steering coupling might not meet specifications.
Fix: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will rework the bolting of the steering coupling on the affected vehicles.
UK DVSASRPC2506 - Driver seat belt fittingDriver seat belt fitting
Risk: Mercedes-Benz AG has determined that on certain C-Class (206 platform) vehicles the safety cap of the seatbelt end fitting on the driver seat might not be installed correctly.
Fix: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will check the safety cap of the seat belt end fitting on the affected vehicles and rework it if necessary.
UK DVSASRPC2419 Misfire Detection M264
Risk: The software of the engine control unit might not meet specifications regarding misfire detection.
Fix: Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the engine control unit on the affected vehicles.
UK DVSASRPC2410 – Bolting Connection Pre-Fuse Box
Risk: On affected vehicles the bolting of an electrical wire on the pre-fuse box in the passenger-side footwell might have not been tightened with sufficient torque.
Fix: Check the bolting connection of the wiring harness to the pre-fuse box and repair if necessary.
UK DVSASRPC2338 -Rear-Axle Wiring HarnessRear-Axle Wiring Harness
Risk: On affected vehicles the rear-axle wiring harness might be pre-damaged due to a fixing which might not meet specifications.
Fix: Check and replace the rear-axle wiring harness if necessary.
UK DVSASystem protection
Risk: On certain vehicles some 80A fuses installed might not meet requirements.
Fix: Replace the respective main fuse boxes on the affected vehicles.
UK DVSAOn affected vehicles the left brake hose on the rear axle might not have been installed according to specifications.
Risk: On affected vehicles the left brake hose on the rear axle might not have been installed according to specifications.
Fix: Check the brake hose and replace if necessary.
UK DVSAOn affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.
Risk: On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.
Fix: Check the bolting of the ground connection on the affected vehicles and repair if necessary
UK DVSAOn affected vehicles the fuel pump impeller might not meet specifications and may deform.
Risk: On affected vehicles the fuel pump impeller might not meet specifications and may deform.
Fix: Replace the fuel pump module.
UK DVSAOn affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Risk: On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Fix: Check the bolting of the ground connections and repair if necessary.
EU Safety GateThe wheel bolts were not tightened in accordance with the torque specifications.The bolts and the wheel assembly could detach while the vehicle is in motion, increasing the risk of accidents.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: 18/05/2026
EU Safety GateA manufacturing defect in the steering coupling may lead to loosen mechanical connection between the steering wheel and the steering box,…A manufacturing defect in the steering coupling may lead to loosen mechanical connection between the steering wheel and the steering box, leading to a loss of steering and increasing the risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateAn improperly reworked fuse box may lead to breaks in contact or incorrect fuse ratings.Therefore, systems connected to the fuse could fail, including the vehicle losing drive without warning as well as the restraint systems or the instrument cluster being compromised. This could lead to injury or fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe safety cap on the end mount of the seat belt of the passenger seat may not be correctly installed.The safety cap could become detached over the life of the vehicle, and the belt would no longer be fixed in its anchorage. In the event of abrupt deceleration or in the event of an accident, the belt may no longer have a restraining effect, thereby increasing the risk of accident/injury.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateGround-cable bolts may not have been tightened with sufficient torque.This can lead the wiring harness not to be properly secured and result in an increase of the connection's electrical resistance. The temperature can rise in this area, increasing the risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe incorrect connection of a wiring harness to the pre-fuse box can cause a failure and increased electrical resistance.This can lead to a sudden loss of propulsion, which increases the risk of accidents and injuries. Moreover, this can increase the risk of fire in the vehicle.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateA fuse may be faulty, which can lead to engine failure or impairment of the restraint functions and instrument cluster.This increases the risk of an accident, injuries and fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe bolts on the terminal clamps of the starter battery may come loose.This could increase the electrical contact resistance, leading to a local temperature increase at the terminal clamp connection point. This creates a risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe tank strap may not have been screwed on with the required torque, causing the screw to loosen and the fuel tank to drop, possibly…The tank strap may not have been screwed on with the required torque, causing the screw to loosen and the fuel tank to drop, possibly hitting the drive shaft. This could damage the tank and cause fuel leaks, increasing the risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateDue to a faulty fixation, the rear axle wiring harness may be damaged.This may cause sudden momentum loss, increasing the risk of an accident. In addition, electrical current may cause an increased temperature in the damaged area, creating a risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateA bolt on the high-pressure pump may be faulty, which could impair the sealing function between the high-pressure pump and the tandem oil…A bolt on the high-pressure pump may be faulty, which could impair the sealing function between the high-pressure pump and the tandem oil pump. As a result, oil and fuel may leak onto the road, posing a risk to the following traffic. In addition, oil and fuel could come into contact with hot engine parts, increasing the risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe windows may not be properly attached and can fall out, creating a risk of an accident.The front airbag may not work as intended if the windscreen comes loose, increasing the risk of injury.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe tightening torque on the screw connections on certain 12V and 48V ground points may be insufficient.This may lead to improper wiring fixation, which may cause rise of temperature in this area, increasing the risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GatePolluted brake fluid could lead to increased wear of the braking system and a reduced braking performance.This could also impair the functioning of the electronic stability program (ESP), creating a risk of an accident.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateThe rear spoiler may be properly bonded to the tailgate and could detach, creating a risk of injuries.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
EU Safety GateFuel may leak and the fuel line pressure may drop, leading to misfires or even engine stalling while driving, increasing the risk of an…Fuel may leak and the fuel line pressure may drop, leading to misfires or even engine stalling while driving, increasing the risk of an accident. Moreover, fuel leaks could pose a risk to following traffic.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
What do 2023 Mercedes-Benz C-Class owners report?
12 of the 26 complaints, the most recent for the most-reported components, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
My vehicle developed a coolant warning during normal road use. I had not experienced any known collision, crash, or unusual impact. I brought the vehicle to an authorized Mercedes-Benz dealer for inspection. The dealer diagnosed the problem as: “Front low-temperature cooler replacement – impact damage causing leak.” The repair estimate was approximately $2,385. The failed component is the front low-temperature cooler located directly behind the lower front grille. Based on the location and design, the cooler appears to have limited protection from ordinary road debris. The dealer believes that…
2 of 245/40HR18XL & 2 of 225/45HR18XL... All 4 tires replaced I purchased a 2023 Mercedes-Benz C300 from Benzel Busch motor car (an authorized Mercedes-Benz dealer) in [XXX] in XXX. Since purchase, this vehicle has had repeated, unresolved defects. The Check Engine warning light has illuminated numurous times, resulting 4 separate towing incidents. Despite multiple warranty repairs, the same issues keep recurring. At only 10,167 miles, one tire required replacement due to abnormal wear. At only 22,780 miles, all 4 tires required full replacement for the same reason. In total 5 tires have been…
I am filing a safety complaint regarding my 2023 Mercedes-Benz AMG C43 4MATIC. The vehicle has approximately 23,000 miles. On multiple occasions, the vehicle has abruptly and violently applied the brakes and/or come to a near stop while I was driving on highways and side roads, even though there was nothing in front of me that should have triggered emergency braking. There was no vehicle, pedestrian, cyclist, object, or road hazard present that would justify this braking event. This is not normal braking behavior. The car essentially performs an uncommanded emergency stop or severe…
The contact owns a 2023 Mercedes-Benz C300. The contact stated that on occasion while driving at various speeds, the vehicle unexpectedly stopped without the brake pedal being depressed. There were no warning lights illuminated. The vehicle was diagnosed twice by the local dealer, and the contact was advised that the Forward Collision Avoidance sensors needed to be recalibrated; however, the failure persisted. The vehicle was taken back to the same dealer where the vehicle was inspected, and the contact was advised that further diagnostic tests were required to determine the cause of the…
On 4 different occasions car brake assist activated causing car to come to an immediate stop and jerk. At stop light as I started to accelerate a left turn car came to an immediate stop almost causing the car behind hit rear end. Brake assist light activated. This happened twice. And twice when in reverse backing out of a parking space and backing into driveway. Dealership notified look at my car and stated they did not see anything wrong. 4th incident happened within 30 minutes after leaving Wilmington Mercedes Benz.
The electrical wiring harness of my vehicle completely caught fire making my vehicle stopped working. Manufacture warranty refuses to acknowledge this as an ongoning issue with this models and forcing me to pay for my own repairs this is a danger to anyone driving this vehicle as the car entirely can be caught on fire at any given time.
On 2/17/24 the vehicle was parked in front of my house. There is a slight grade. The vehicle had been parked for approximately 1 hour when my neighbor called me to tell me that the vehicle had rolled down the hill and into his storage building. The vehicle rolled on its own. I have video evidence that no one was in or around the car at the time of this occurrence. I also, have 2 eyewitnesses who can corroborate this story. Due to safety concerns, I immediately returned the vehicle to Mercedes. I have .MOV files and pictures JPEG that will not upload for some reason.
The contact owns a 2023 Mercedes-Benz C43 AMG. While driving into a parking lot at a very slow speed, the braking system suddenly activated, and the vehicle shut off. After restarting the vehicle, the messages "Rear Axle Malfunction", "Active Braking System Limited" and "Inoperative" were displayed. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 5,600.
The above multiple problems/parts at issue. To include Other/I am not sure. Started at or approximately February 2023. The (Automatic Folding Side View Folding Mirrors before resolution) Malfunctioned 3 separate times before being fixed. During that time the (Cooling System Malfunction Reduced Drive Performance Service Required), displayed 2 separate Unknown Dates on the Dashboard Screen. The MB Dealership Service Diagnostic Check made was not Able to Detect the Trouble and was Never Fixed). On Monday, 08/21/2023, by (USPS) delivered a Mercedes Benz Official Letter Head Dated August 2023…
The contact owns a 2023 Mercedes-Benz C300. The contact stated while driving 50 MPH with the Intelligent Cruise Control activated, with no other vehicles or objects nearby, the vehicle inadvertently slowed down. After restarting the vehicle, the vehicle returned to normal functionality but later displayed the following messages: “Active Emergency Stop Assist Currently Unavailable”, and “Active Steering Assist Inoperable”. The Forward Collision Avoidance warning light was illuminated. The vehicle was taken to the dealer but not yet diagnosed. The vehicle was not repaired. The manufacturer was…
The contact owns a 2023 Mercedes-Benz C300. The contact stated while reversing, the check engine warning light illuminated and the vehicle lost motive power, stalled and shutoff. The contact was able to restart the vehicle, but had the vehicle towed to the dealer. The dealer stated that no cause for the failure was found but updated the software. The failure reoccurred. The vehicle was taken back to the dealer and the contact was informed that the water pump needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 3,900.
The Mercedes just slams on the brakes for no reason. It's happened 3x and is very scary. According to Internet posts this is a common problem because of collision assist malfunction
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2023 Mercedes-Benz C-Class: questions owners ask
Is the 2023 Mercedes-Benz C-Class reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 26 complaints with NHTSA about the 2023 Mercedes-Benz C-Class; the most common categories were forward collision avoidance (11, 42.3%), service brakes (7, 26.9%), electrical system (5, 19.2%). There are no safety recalls listed for this model year. 2 complaints mention a crash, 1 injury was reported.
What are the most common problems with the 2023 Mercedes-Benz C-Class?
Across 26 owner complaints filed with NHTSA, the categories mentioned most often are forward collision avoidance (42.3% of complaints), service brakes (26.9% of complaints), electrical system (19.2% of complaints), engine (11.5% of complaints), tires (11.5% of complaints). One complaint can name several components.
Does the 2023 Mercedes-Benz C-Class have any recalls?
As of October 2026, NHTSA lists no safety recalls for the 2023 Mercedes-Benz C-Class. Recalls can be issued at any time, so check your VIN at nhtsa.gov/recalls.
Can the sunroof on the 2023 Mercedes-Benz C-Class shatter or fail?
3 of the 26 owner complaints NHTSA has on file for the 2023 Mercedes-Benz C-Class (11.5%) describe the sunroof or panoramic roof shattering, exploding or failing. One owner wrote: "My panoramic sunroof spontaneously exploded while driving down the highway, no external impact was made. The glass exploded from the inside out." (NHTSA complaint 11678947, August 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Check your own C-Class
Counts are a starting point, not a verdict: popular models collect more complaints because more of them are on the road, and NHTSA does not verify individual reports. To see whether a recall is still open on your car, enter your VIN at nhtsa.gov/recalls (U.S.) or your registration at check-vehicle-recalls.service.gov.uk (UK). Had a safety problem? Report it to NHTSA; complaints are what trigger investigations and recalls.
Data: NHTSA Office of Defects Investigation recall and complaint databases (public domain), DVSA vehicle recalls (Open Government Licence v3.0), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2023 only; combines NHTSA's entries for C-CLASS, C-CLASS CABRIOLET and C-CLASS COUPE.