2021 Mercedes-Benz E-Class EPA Fuel Economy Summary

The 2021 Mercedes-Benz E-Class delivers an EPA-certified 18–26 MPG combined (16–23 city / 23–31 highway depending on engine and drivetrain) across 16 configurations. Hybrid variants achieve up to 26 MPG combined, compared to 25 MPG for standard gasoline trims. Estimated annual fuel costs range from $2,900 to $4,200.

Combined MPG
18–26 MPG
55% city / 45% highway weighted
City MPG
16–23 MPG
Stop-and-go urban cycle
Highway MPG
23–31 MPG
Sustained open-highway test
Annual Fuel Cost
$2,900–4,200
EPA estimate @ 15,000 miles/yr

2021 Mercedes-Benz E-Class Powertrain & Efficiency Comparison

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

Internal Combustion

Standard Gasoline Trims

18–25 MPG Combined

Annual Fuel Cost: $3,050–$4,200 (6 configurations)

Gas-Electric Hybrid

Hybrid (HEV) Trims

23–26 MPG Combined

Annual Fuel Cost: $2,900–$3,300 (Saves ~$150/yr vs gas)

Official EPA Fuel Economy Ratings by Configuration (16 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)
E450 4matic Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 23 MPG 30 MPG 26 MPG $2,900 —
E450 Coupe Premium 3L Hybrid Rear-Wheel Drive Automatic 9-spd 23 MPG 31 MPG 26 MPG $2,900 —
E350 Premium 2L 4-Cyl Gas Rear-Wheel Drive Automatic 9-spd 22 MPG 31 MPG 25 MPG $3,050 —
E350 4matic Premium 2L 4-Cyl Gas 4-Wheel Drive Automatic 9-spd 22 MPG 30 MPG 25 MPG $3,050 —
E450 4matic Coupe Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 23 MPG 30 MPG 25 MPG $3,050 —
E450 Convertible Premium 3L Hybrid Rear-Wheel Drive Automatic 9-spd 23 MPG 30 MPG 25 MPG $3,050 —
E450 4matic Convertible Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 23 MPG 29 MPG 25 MPG $3,050 —
AMG E53 4matic Plus Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 22 MPG 29 MPG 25 MPG $3,050 —
E450 4matic All-Terrain (wagon) Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 22 MPG 28 MPG 24 MPG $3,150 —
AMG E53 4matic Plus Coupe Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 21 MPG 28 MPG 24 MPG $3,150 —
GLE450 4matic Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 21 MPG 26 MPG 23 MPG $3,300 —
AMG E53 4matic Plus Convertible Premium 3L Hybrid 4-Wheel Drive Automatic 9-spd 21 MPG 27 MPG 23 MPG $3,300 —
GLE350 Premium 2L 4-Cyl Gas Rear-Wheel Drive Automatic 9-spd 19 MPG 26 MPG 22 MPG $3,450 —
GLE350 4matic Premium 2L 4-Cyl Gas 4-Wheel Drive Automatic 9-spd 19 MPG 26 MPG 22 MPG $3,450 —
AMG E63 S 4matic Plus Premium 4L 8-Cyl Gas 4-Wheel Drive Automatic 9-spd 16 MPG 23 MPG 18 MPG $4,200 —
AMG E63 S 4matic Plus (SW) Premium 4L 8-Cyl Gas 4-Wheel Drive Automatic 9-spd 16 MPG 23 MPG 18 MPG $4,200 —
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

$3.37–$4.86

Based on $3.50 per gallon regular gasoline

Annual Fuel Consumption

577–833 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 2021 Mercedes-Benz E-Class

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.