BestCarRank
Mercedes-Benz

2024 Mercedes-Benz GLC 300 4MATIC

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2024 Mercedes-Benz GLC 300 4MATIC has 9 owner complaints filed with NHTSA — that's 0.8x the segment average of 11. The most common issue is driver assist/cameras problems (44% of all complaints), specifically: 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 non avoidable highly calamity. this “auto” maneuver happens d. There are 2 recalls issued for this model year.

3 injuries

9

Total Complaints

2

Recalls Issued

—/5

Safety Stars

0.8x

vs Segment Avg

Known Problems(top 5 of 5)

DRIVER ASSIST/CAMERAS

4 complaints
44%
  • • 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 non avoidable highly calamity. This “AUTO” maneuver happens d
  • • New car was purchased from Rocklin Mercedes in California. Soon after the rear back up camera kept opening and closing when the car was in drive and at random times. The was then taken into Autobahn Motors in Belmont California to have the problem checked. I was told Mercedes was working on a softw
  • • 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 forward collision system was turned on at that time. The driv
Typical onset: 50K miles Est. repair: $500

“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 non avoidable highly calamity. This “AUTO” maneuver happens d”

— NHTSA complaint filing

Recalls (2)

STRUCTURE:BODY:ROOF AND PILLARS06/06/2025

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2025 GLC 300, GLC 300 4MATIC, 2024-2025 AMG GLC 43 4MATIC, 2025 GLC 350E 4MATIC, and AMG GLC 63 S E vehicles equipped with a panoramic sunroof. In certain crash scenarios, where the rear occupant's head contacts the C-pillar, the pillar may not absorb an adequate amount of the impact. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 201, "Occupant Protection in Interior Impact."

Risk: In the event of a crash, insufficient impact protection can increase the risk of injury.

Fix: Dealers will modify the roof lining and C-pillar trim, free of charge. Owner notification letters were mailed July 9, 2025. Owners may contact MBUSA customer service at 1-800-367-6372.

Fuel Cost Calculator for 2024 Mercedes-Benz GLC 300 4MATIC

Live EIA prices
Per year
$1,778
Per month
$148
Per mile
14.8¢
MPG
27
City driving (worst-case MPG)
$2,001/yr
Highway driving (best-case MPG)
$1,500/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today
Current
$4.00
5-year low
$2.78
5-year high
$5.01
Since 2021
+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2024 Mercedes-Benz GLC 300 4MATIC

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$2,599
Full coverage / month
$217
Liability only / year
$732
vs US avg
+55%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (suv-luxury)1.35x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.15x
= Full coverage estimate$2599

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mercedes-Benz GLC 300 4MATIC Service Intervals

Oil change
10K mi / 12 mo
Tire rotation
10K mi
Brake fluid
24 months
Transmission fluid
40K mi
Engine coolant
150K mi
Spark plugs
60K mi
Cabin air filter
20K mi
Engine air filter
40K mi
Differential (AWD/4WD)
40K mi

Service A / Service B alternating schedule. Requires MB-approved oil (229.5 spec typically).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mercedes-Benz New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
4 yr / 50K mi
Powertrain
4 yr / 50K mi
Hybrid/EV battery
10 yr / 155K mi
Corrosion (rust perforation)
4 yr / 50K mi
Roadside assistance
4 yr / unlimited mi

EQ EV battery warranty is 10 years/155,000 miles

Estimated Repair Costs

DRIVER ASSIST/CAMERAS(~50K mi)
$500
BODY/STRUCTURE(~50K mi)
$500
ELECTRICAL(~50K mi)
$500
VISIBILITY(~50K mi)
$500
ENGINE(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 9 owner complaints for this specific year, here's what to check or ask about:

  • ☐
    DRIVER ASSIST/CAMERAS: 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 non avoidable highly calamity. This “AUTO” maneuver happens d

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    BODY/STRUCTURE: 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 forward collision system was turned on at that time. The driv

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    ELECTRICAL: 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 forward collision system was turned on at that time. The driv

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    VISIBILITY: My 2024 Mercedes-Benz GLC 300 has experienced multiple serious safety-related malfunctions involving several vehicle systems. In August, after picking up the vehicle from service, I placed my [XXX] grandson in his car seat, set my purse with the key inside the vehicle, and closed the rear door. Th

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    RECALLS: Verify all 2 recalls have been completed — free at any Mercedes-Benz dealer
  • ☐
    General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz GLC 300 4MATIC — Year Comparison

How does 2024 compare to other years? Fewer complaints = more reliable.

2025
12Below Average
2024
9Excellent Reliability
2023
11Average
Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
9
Recalls
2
Fire reports
0
Crash reports
0
Injury reports
3
Segment avg
11

Check a Specific VIN

See recalls for YOUR 2024 Mercedes-Benz GLC 300 4MATIC

Compare With

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