2023 Mercedes-Benz GLC EPA Fuel Economy Summary

The 2023 Mercedes-Benz GLC delivers an EPA-certified 20–28 MPG combined (17–25 city / 24–32 highway depending on engine and drivetrain) across 4 configurations. Hybrid variants achieve up to 28 MPG combined, compared to 22 MPG for standard gasoline trims. Estimated annual fuel costs range from $2,700 to $3,800.

Combined MPG
20–28 MPG
55% city / 45% highway weighted
City MPG
17–25 MPG
Stop-and-go urban cycle
Highway MPG
24–32 MPG
Sustained open-highway test
Annual Fuel Cost
$2,700–3,800
EPA estimate @ 15,000 miles/yr

2023 Mercedes-Benz GLC Powertrain & Efficiency Comparison

Factual efficiency differences across gasoline, hybrid, plug-in hybrid, and electric variants

Internal Combustion

Standard Gasoline Trims

20–22 MPG Combined

Annual Fuel Cost: $3,450–$3,800 (2 configurations)

Gas-Electric Hybrid

Hybrid (HEV) Trims

26–28 MPG Combined

Annual Fuel Cost: $2,700–$2,900 (Saves ~$750/yr vs gas)

Official EPA Fuel Economy Ratings by Configuration (4 Variants)

Laboratory certification test values across engine, transmission, and drivetrain permutations

Configuration / Model Powertrain Drivetrain Transmission City Highway Combined Annual Fuel Cost CO2 (g/mi)
GLC300 Premium 2L Hybrid Rear-Wheel Drive Automatic 9-spd 25 MPG 32 MPG 28 MPG $2,700 —
GLC300 4matic Premium 2L Hybrid All-Wheel Drive Automatic 9-spd 23 MPG 31 MPG 26 MPG $2,900 —
GLC300 4matic Coupe Premium 2L 4-Cyl Gas All-Wheel Drive Automatic 9-spd 20 MPG 26 MPG 22 MPG $3,450 —
AMG GLC43 4matic Coupe Premium 3L 6-Cyl Gas All-Wheel Drive Automatic 9-spd 17 MPG 24 MPG 20 MPG $3,800 —
EPA Test Methodology: Fuel economy estimates are determined by vehicle manufacturers in accordance with EPA regulations (40 CFR Part 600) and verified by EPA laboratories. Estimates assume 15,000 miles per year of driving (55% city, 45% highway) at prevailing fuel and electricity prices.

Deterministic Fuel Cost & Consumption Benchmarks

Standardized annual energy consumption and operating cost metrics based on 15,000 annual miles

Fuel Cost per 25 Miles

$3.13–$4.38

Based on $3.50 per gallon regular gasoline

Annual Fuel Consumption

536–750 Gallons

Estimated annual energy units needed for 15,000 miles

5-Year Fuel Cost vs Avg Vehicle

Official EPA Benchmark

Compared to the average new vehicle over 5 years

Related Official Reports for 2023 Mercedes-Benz GLC

Cross-reference safety ratings, owner defect complaints, and recall campaigns

Official US Government Data Provenance

Fuel economy ratings, electric range figures, and energy cost estimates on this page are retrieved directly from the United States Environmental Protection Agency (EPA) and U.S. Department of Energy (FuelEconomy.gov) certified vehicle database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.