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Combined MPG
20–25 MPG
55% city / 45% highway weighted
City Driving Rating
17–24 MPG
Stop-and-go urban cycle
Highway Driving Rating
25–29 MPG
Sustained open-highway test
Annual Fuel Cost
$3,050–3,800
EPA estimate @ 15,000 miles/yr
Laboratory Fuel Economy Certification

Executive Efficiency Findings

The 2015 Mercedes-Benz E-Class delivers an EPA-certified 20–25 MPG combined across 16 configurations. Hybrid variants achieve up to 25 MPG combined, compared to 23 MPG for standard gasoline trims. Estimated annual fuel costs range from $3,050 to $3,800.

EPA Testing Standards: Ratings derived from official dynamometer laboratory tests under 40 CFR Part 600. Real-world fuel economy varies based on driving style, ambient temperature, cargo payload, and terrain.
Certified Powertrain Attributes
  • • Certified Configurations: 16 trim and powertrain permutation(s).
  • • Combined Rating Range: 20–25 MPG.
  • • Hybrid Efficiency: Up to 25 MPG combined.
  • • Annual Energy Cost: $3,050–3,800 (15k mi/yr).
Electrification Analysis

2015 Mercedes-Benz E-Class Powertrain & Efficiency Comparison

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

GASOLINE 15 TRIMS

Standard Gasoline

20–23 MPG

Annual Fuel Cost: $3,300–$3,800.

EPA Certified
HYBRID 1 TRIMS

Gas-Electric Hybrid (HEV)

25–25 MPG

Annual Fuel Cost: $3,050–$3,050 (saves vs gas).

Self-Charging Hybrid
Certified Ratings Matrix

Official EPA Fuel Economy Ratings by Configuration (16)

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

Configuration / Model Powertrain Drivetrain Transmission City Highway Combined Annual Fuel Cost CO2 (g/mi)
E400 Hybrid Premium 3.5L Hybrid Rear-Wheel Drive Automatic 7-spd 24 MPG 28 MPG 25 MPG $3,050 —
E350 Convertible Premium 3.5L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 20 MPG 28 MPG 23 MPG $3,300 —
E350 Premium 3.5L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 20 MPG 28 MPG 23 MPG $3,300 —
E350 4matic Premium 3.5L 6-Cyl Gas 4-Wheel Drive Automatic 7-spd 20 MPG 27 MPG 23 MPG $3,300 —
E350 Premium or E85 3.5L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 20 MPG 28 MPG 23 MPG $3,300 —
E350 4matic Premium or E85 3.5L 6-Cyl Gas 4-Wheel Drive Automatic 7-spd 20 MPG 27 MPG 23 MPG $3,300 —
E400 Premium 3L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 20 MPG 29 MPG 23 MPG $3,300 —
E400 Coupe Premium 3L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 20 MPG 29 MPG 23 MPG $3,300 —
E400 4matic Coupe Premium 3L 6-Cyl Gas 4-Wheel Drive Automatic 7-spd 20 MPG 28 MPG 23 MPG $3,300 —
E400 Convertible Premium 3L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 20 MPG 29 MPG 23 MPG $3,300 —
E350 Coupe Premium 3.5L 6-Cyl Gas Rear-Wheel Drive Automatic 7-spd 19 MPG 28 MPG 22 MPG $3,450 —
E350 4matic (wagon) Premium 3.5L 6-Cyl Gas 4-Wheel Drive Automatic 7-spd 20 MPG 26 MPG 22 MPG $3,450 —
E400 4matic Premium 3L 6-Cyl Gas 4-Wheel Drive Automatic 7-spd 20 MPG 27 MPG 22 MPG $3,450 —
E400 4matic (station wagon) Premium 3L 6-Cyl Gas 4-Wheel Drive Automatic 7-spd 19 MPG 26 MPG 22 MPG $3,450 —
E550 Coupe Premium 4.7L 8-Cyl Gas Rear-Wheel Drive Automatic 7-spd 18 MPG 26 MPG 21 MPG $3,600 —
E550 Convertible Premium 4.7L 8-Cyl Gas Rear-Wheel Drive Automatic 7-spd 17 MPG 25 MPG 20 MPG $3,800 —
Operating Cost Economics

Standardized Energy Cost & Consumption Benchmarks

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

ENERGY UNIT 25 MI

Fuel Cost per 25 Miles

$3.50–$4.38

Based on $3.50 per gallon regular gasoline

ANNUAL TOTAL 15K MI

Annual Fuel Consumption

600–750 Gal

Estimated annual energy units needed for 15,000 miles

5-YEAR VALUE SAVINGS

5-Year Fuel Cost vs Avg Vehicle

EPA Benchmark

Compared to the average new vehicle over 5 years

Search Intelligence

Quick Answers: EPA Fuel Economy, Electric Range & Energy Costs for the 2015 Mercedes-Benz E-Class

Direct, deterministic answers synthesized from verified United States government databases for the 2015 Mercedes-Benz E-Class

What gas mileage (MPG) does the 2015 Mercedes-Benz E-Class get?

The 2015 Mercedes-Benz E-Class achieves an EPA-certified rating of 20 to 25 MPG combined across 16 certified configuration(s).

City ratings range from 17 to 24 MPG, and highway ratings range from 25 to 29 MPG.

Source: EPA FuelEconomy.gov (40 CFR Part 600)

How much better is hybrid MPG on the 2015 Mercedes-Benz E-Class?

Hybrid (HEV) models achieve up to 25 MPG combined, delivering approximately 2 more miles per gallon than standard gasoline configurations (up to 23 MPG combined).

Gas-electric hybrid variants use regenerative braking and electric assist motors to reduce fuel consumption in stop-and-go city driving.

Source: EPA Certified Ratings Comparison

What is the estimated annual fuel or energy cost for the 2015 Mercedes-Benz E-Class?

Using AutoUtility's standardized operating cost model, estimated annual fueling and energy costs range between $3,050 and $3,800 for the 2015 Mercedes-Benz E-Class.

Calculated under AutoUtility's standardized methodology (15,000 miles per year, 55% city / 45% highway driving, $3.50/gallon regular gasoline, $0.16/kWh electricity) using official EPA dynamometer consumption ratings.

Source: AutoUtility Operating Cost Model (EPA-Certified Baseline)
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 under 40 CFR Part 600.

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