FREE VEHICLE RESEARCH
2024 Mercedes-Benz GLC300
The 2024 Mercedes-Benz GLC300 has no open NHTSA safety recalls on file, 29 owner complaints, and gets about 29 mpg combined. Here's the full free record from NHTSA and the EPA.
SPECS
2024 Mercedes-Benz GLC300 at a glance
- Engine
- 4-cyl 2L
- Cylinders
- 4
- Displacement
- 2 L
- Drivetrain
- Rear-Wheel Drive
- Transmission
- Automatic 9-spd
- Body
- Small Sport Utility Vehicle 2WD
- Fuel
- Premium
Source: EPA / NHTSA vPIC, as of July 11, 2026.
SAFETY RECALLS · NHTSA
No safety recalls on file with NHTSA for this year and model. That's a good sign.
NHTSA has opened one or more investigations covering this model. Recalls can follow an investigation, so check NHTSA for the latest before you buy.
Open safety recalls are free to fix at any franchised dealer. What recalls mean → Source: NHTSA recalls, as of July 11, 2026. Recalls can be issued any time, confirm by VIN at nhtsa.gov before you buy.
OWNER COMPLAINTS · NHTSA
29 filed- 7
POWER TRAIN
While driving my 2024 Mercedes-Benz GLC 300 on California highways, the vehicle has repeatedly experienced sudden uncontrolled deceleration, unexpected transmission downshifts into 2nd gear, severe transmission jerking, and complete loss of
- 5
ELECTRICAL SYSTEM
The contact owns a 2024 Mercedes-Benz GLC 300. The contact stated that while driving at approximately 35 MPH, the brake was applied unexpectedly without the contact depressing the brake pedal. The contact stated that she was unsure if the f
- 3
ENGINE
Check engine light (MIL) came on while driving and vehicle lost power. Would not accelerate. Had it towed to Mercedes Benz of Mrytle Beach. $8000 repair. Mercedes Corp would not help. This is a copy of a TSB (LI05.20-P-080257) for th
- 3
FORWARD COLLISION AVOIDANCE
While carrying my carbon fiber bicycle on a rear hitch mounted bicycle carrier, the vehicle severely and violently applies the brakes and swerves either left or right or both. This catastrophic maneuver has put me and other drivers in a no
- 2
SERVICE BRAKES
3/31/26 2pm After highway driving - 3 miles/35 mph tried to brake- Immediately something was wrong with the brake as and it felt spongy/mushy/unresponsive. Car did not slow until I pressed the brake fully to the floor. The car did stop &wa
- 2
EXTERIOR LIGHTING
Attention Assist System Suspended notification comes on randomly on vehicle while driving, rendering driver defenseless with regard to safety warnings that would otherwise be in effect, such as blind spot assist, attention assist, which are
Problems owners reported to the government, useful for spotting patterns, not proof any one car has them. What complaints mean → Source: NHTSA complaints, as of July 11, 2026. Owner-submitted reports, not verified diagnoses.
CRASH-TEST RATINGS · NHTSA NCAP
- Overall
- —
- Frontal
- —
- Side
- —
- Rollover
- —
Government crash tests of this model; not every trim or year is tested. Source: NHTSA NCAP, as of July 11, 2026.
FUEL & RUNNING COST · U.S. EPA
- Combined
- 29 mpg
- City / Hwy
- 26 / 33
- Est. fuel / yr
- $2,650
- CO₂ / mi
- 311 g
EPA lab estimates; real mpg varies by how you drive. Source: EPA fueleconomy.gov, as of July 11, 2026. Annual cost assumes 15,000 mi/yr at EPA's reference price.
All figures above come from free U.S. government sources: NHTSA (recalls, complaints, investigations, crash tests) and the EPA (fuel economy and specs). We don't show market price, insurance cost, or proprietary reliability scores, because there's no free, reliable public source for them. For a verdict on a specific listing, with a fair-offer number and what to ask the seller, that's the VINly app.
BEFORE YOU BUY
What to check on this car
Watch for a pending investigation
NHTSA has an open investigation covering this model. A recall can follow an investigation, so check nhtsa.gov for the latest before you commit.
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Test-drive the basics
Cold start, full-lock steering both ways, firm brakes with no pulsing, smooth shifts, and every electronic feature. Warning lights should come on at key-on, then go out.
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Check the title and the VIN
Confirm the title status in hand matches the listing, and that the VIN matches across the dash, door jamb, and title. VINly does not show ownership or accident history, for that, run a paid report like Carfax.
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Ask the seller the right questions
Why they are selling, any service records, accident or panel-repaint history, how many owners, and whether any open recalls were completed.
See the full used-car inspection checklist. None of this replaces a hands-on inspection by a mechanic.
Quick answers
Are there any recalls on the 2024 Mercedes-Benz GLC300? +
No open NHTSA safety recalls are on file for the 2024 Mercedes-Benz GLC300. Recalls can be issued at any time, so confirm with the VIN at nhtsa.gov before you buy.
What gas mileage does the 2024 Mercedes-Benz GLC300 get? +
The EPA rates the 2024 Mercedes-Benz GLC300 at 29 mpg combined (26 city / 33 highway), about $2,650 a year in fuel.
What do owners complain about on the 2024 Mercedes-Benz GLC300? +
Owners have filed 29 complaints with NHTSA for the 2024 Mercedes-Benz GLC300, including 1 involving a crash. The most-reported area is power train.
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