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2021 Mercedes-Benz GLC300 review

Research, photos, specs, and expertise

Mercedes-Benz GLC300 highlights

Customer rating

RepairPal reliability rating

RepairPal Reliability Ratings are based on the actual cost, frequency, and severity of unscheduled repairs and maintenance on make/model data for select 2008-2022 vehicles. The reliability of a specific vehicle may vary depending on its maintenance and driving history, model year, trim, and features. RepairPal Reliability Ratings are provided by RepairPal and CarMax is not responsible for their accuracy. These ratings are based on RepairPal Reliability data as of August 2023. Learn more about RepairPal reliability ratings

Mileage (EPA estimate)

21 city, 28 highway, 23 combined

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What is new for the 2021 Mercedes-Benz GLC300?

  • GLC300 trims have been upgraded with Parking Sensors and Automated Parking as standard equipment this year.

2021 Mercedes-Benz GLC300 trims

Curious how Mercedes-Benz GLC300 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities

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Ratings & reliability

Customer ratings

4.8 out of 5

6 customer reviews

RepairPal reliability rating

RepairPal Reliability Ratings are based on the actual cost, frequency, and severity of unscheduled repairs and maintenance on make/model data for select 2008-2022 vehicles. The reliability of a specific vehicle may vary depending on its maintenance and driving history, model year, trim, and features. RepairPal Reliability Ratings are provided by RepairPal and CarMax is not responsible for their accuracy. These ratings are based on RepairPal Reliability data as of August 2023. Learn more about RepairPal reliability ratings

4
Excellent

RepairPal gave the Mercedes-Benz GLC300 an overall reliability rating of 4 out of 5 stars, which RepairPal describes as Excellent. This rating ranks Mercedes-Benz GLC300 4th out of 29 among Luxury Midsize SUVs.

View RepairPal's full rating of the Mercedes-Benz GLC300

2021 Mercedes-Benz GLC300 FAQ

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