The Used Car Index

2024 Mercedes-Benz C 300 problems

NHTSA lists 11 complaints for the 2024 Mercedes-Benz C 300, 2 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-10.

NHTSA lists this vehicle as MERCEDES-BENZ C 300.

At a glance

Complaints
11
With crash
2
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
3
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
79,676
Investigations
0
Open investigations
0
Manufacturer communications
312

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
ELECTRICAL SYSTEM436.4%
SERVICE BRAKES327.3%
UNKNOWN OR OTHER327.3%
AIR BAGS218.2%
ENGINE218.2%
BACK OVER PREVENTION19.1%
FORWARD COLLISION AVOIDANCE19.1%
POWER TRAIN19.1%
SEATS19.1%
VEHICLE SPEED CONTROL19.1%
Top subsystems
SystemSubsystemComplaints
BACK OVER PREVENTIONWARNINGS1
FORWARD COLLISION AVOIDANCEAUTOMATIC EMERGENCY BRAKING1
FORWARD COLLISION AVOIDANCEWARNINGS1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
electrical electronic436.4%0.89
loss of control436.4%0.77
mechanical failure19.1%0.43
restraint or airbag19.1%0.34
unclear19.1%1.00
Severities
LabelCountShare of taggedMean confidence
moderate872.7%0.89
high218.2%0.80
none19.1%0.99

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 11 tagged complaints of 11 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

3 recalls.

25V253000

Date: 2025-05-02. Systems: SEAT BELTS.

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 C 300, and 2023-2024 AMG C 43 vehicles. The driver-side seat belt cover may not be properly installed on the seat belt tensioner, which can cause the seat belt anchor to come loose.

Consequence: A loose seat belt may not properly restrain an occupant during a crash, increasing the risk of injury.

Remedy: Dealers will inspect and repair the seat belt covers, as necessary, free of charge. Owner notification letters were mailed May 16, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025040012.

Do not drive: No. Park outside: No.

24V115000

Date: 2024-02-16. Systems: ELECTRICAL SYSTEM.

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C300, AMG C43, S580e, S580, Maybach S580, Maybach S680, AMG SL43, AMGSL63, GLC300, EQE350, EQE500, EQS450, EQS580, AMG EQS, 2023 S500, AMG SL55, AMG EQE, 2024 E350, E450, AMG C63e S, CLE300 Coupe, CLE450 Coupe, and GLC300 Coupe vehicles. The 80-Amp fuses may have been manufactured incorrectly, which can cause the fuses to fail.

Consequence: An 80-Amp fuse that fails can result in a sudden loss of drive power or a loss of critical safety functions such as the restraint systems or instrument cluster, increasing the risk of a crash or injury. Additionally, there could be an increased risk of a fire.

Remedy: Dealers will replace the main fuse boxes, free of charge. Owner notification letters were mailed April 5, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024030008.

Do not drive: No. Park outside: No.

23V880000

Date: 2023-12-21. Systems: FUEL SYSTEM, GASOLINE.

Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2024 GLE, GLS, C-Class, E-Class, S-Class, SL, GLC, CLS, AMG GT, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, causing a loss of drive power.

Consequence: A loss of drive power can increase the risk of a crash.

Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 28, 2024. Owner notification letters will be mailed in phases, on February 23, 2024, April 19, 2024, June 28, 2024, August 9, 2024, October 1, 2024, and December 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 23V-445.

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

312 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM176
POWER TRAIN32
ENGINE22
EXTERIOR LIGHTING22
STRUCTURE21
STEERING19
SUSPENSION17
VISIBILITY/WIPER16

11038187

Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9Ga TRONIC automatic transmission) and 725.1 (NAG3 facelift/9Ga TRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been develop

11038188

Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: STEERING.

Complaint Slight creaking noises when steering. Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the sleeves for noise; see attached video. If necessary, apply lubricant to the sleeves.

11037484

Date: 2026-09-25. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.

Complaint CEL illuminates and/or AC does not blow cold. Cause Potentially relevance to hardware and/or software Remedy Scenario 1: 1. If the AC does not blow cold air, replace compressor (if compressor's index and part number Figure 1 match against Table 1). a. If the compressor does not fall within

11038186

Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.

Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibra

11037379

Date: 2026-09-18. Type: Other. Systems: POWER TRAIN, STRUCTURE, SUSPENSION, VISIBILITY/WIPER.

Dear Dealer Partners, The part numbers listed in the chart below should no longer be installed and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is Thursday, October 8th, 2026. After October 8th, we will no longer accept returns of these parts. These par

11038175

Date: 2026-09-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint Issue after OTA Update IC Odometer Reading blank("_ _ _ _") IC Maintanence data unavailable Cause OTA Update E61.0 Remedy In the IC Control Unit Log, please check the following information: Verify whether DTCs B228229, B228287, and B226656 are present in either A or A+S. Verify that Status

11038174

Date: 2026-09-15. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old stationa s artwork instead of updating to the new one. Cause When a new station change request is triggered, a temporary glitch is causing the Head Unit application to fail to overwrite the

11037834

Date: 2026-09-14. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Whining / humming noises (described as foghorna like) from the drivetrain in the rear axle area during cornering. (figure 1) On the abovea mentioned vehicles with a mileage up to 15,000 km (about 9,300 mi), noises can occur from the rear axle differential. Cause Drivetrain resonance caus

11037987

Date: 2026-09-14. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil qu

11037806

Date: 2026-09-11. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: a ? Flashing without a speed limit ("a a "). a ? Flashing when current vehicle speed is under speed limit. a ? Flashing between US speed lim

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
C 30011

Same model, other years

All model years | All Mercedes-Benz models

Other Mercedes-Benz models, 2024

Sources

Get this record as JSON

The free rate-limited demo needs no key.

curl "https://api.theusedcarindex.com/v1/demo/vehicle_risk?make=Mercedes-Benz&model=C+300&year=2024"

Paid endpoint: https://api.theusedcarindex.com/v1/vehicle_risk. MCP endpoint: https://api.theusedcarindex.com/mcp.