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Logbook · Compact Cars · 2014–2026

Mercedes-Benz CLA250 4matic

What it costs to keep fuelled

$1,655a year, fuel only

The 2026 Mercedes-Benz CLA250 4matic is EPA-rated at 29 MPG combined (25 city / 34 highway). Over 15,000 miles a year that is about 517 gallons, $1655 a year in fuel, or $0.110 per mile at $3.20/gal.

Across its full 2014–2026 run it averages 27.4 MPG, improving by 2 MPG over 13 model years.

LOGBOOK ENTRY · 2026 MERCEDES-BENZ CLA250 4MATIC SHEET MERCEDES-BENZ-CLA250-4MATIC · 13 YEARS ON FILE
29 MPG COMBINED 0 60

The band is how far one gallon carries it: 29 of the 60 MPG this scale runs to. The square tick is the compact cars average, 26.6.

Fuel, per year
$1,655 at 15,000 mi
Per mile
$0.110
Per kilometre
$0.069
Gallons burned/yr
517

1 mile = 1.609344 km · fuel at $3.20/gal, fixed JUL 2026

Test figure — not a road result

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Combined29MPG · 2026
Cost per mile$0.110at $3.20/gal
Fuel per year$165515,000 miles
Class rank43of 227

How this is worked out

  1. Start from the EPA combined figure for the model year — a laboratory test cycle run to a fixed procedure, not a road result. Where a year sold several engines or drivetrains, the trims are averaged and the trim count is printed beside the row so you can see how much averaging is behind it.
  2. Fix a pump price. This site keeps one reference price, $3.20 a US gallon, fixed JUL 2026 and printed next to every dollar figure it produces. It is an assumption with a date on it, not a quote — put your own price in.
  3. Fix an annual distance. Every annual figure on this site uses 15,000 miles a year, roughly the US average. A cost per year with no stated distance is not a number, it is a mood.
  4. Divide distance by economy for gallons, multiply by price for the year's fuel, divide price by economy for one mile. The per-kilometre line is that last figure divided by 1.609344 — the same money, in the unit most of the world drives in.
  5. Stop there. No depreciation, no tyres, no insurance, no servicing. This is the fuel line of the ledger and it is labelled as one; depreciation usually dwarfs everything on it.
gallons/yr = miles/yr ÷ MPG
fuel  $/yr = gallons/yr × $/gal
cost  $/mi = $/gal ÷ MPG
cost  $/km = cost $/mi ÷ 1.609344

The full method, the licence note, and what a test figure cannot tell you →

Re-run the ledger at another pump price

Every line above rests on one pump price. Here is the same entry re-costed at six others, because the price is the part that changes while the test sheet stays put.

Fuel pricePer mile10,000 mi/yr15,000 mi/yr20,000 mi/yr
$2.50/gal $0.086 $862 $1293 $1724
$3.00/gal $0.103 $1034 $1552 $2069
$3.20/gal $0.110 $1103 $1655 $2207
$3.50/gal $0.121 $1207 $1810 $2414
$4.00/gal $0.138 $1379 $2069 $2759
$4.50/gal $0.155 $1552 $2328 $3103
$5.00/gal $0.172 $1724 $2586 $3448

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

The whole service history, sheet by sheet

13 model years on file. Read down the combined column: a nameplate that got heavier shows it here long before any brochure admits it.

Every model year of the Mercedes-Benz CLA250 4matic the EPA has a test sheet for, averaged across trims.EPA DATA · JUL 2026
YearCombinedCityHighwayEPA fuel cost/yrCO₂ g/miTrims
2026 29 MPG2534 $26503111
2025 29 MPG2534 $26503111
2024 28 MPG2535 $27503131
2023 27 MPG2433 $28503221
2022 27 MPG2433 $28503221
2021 27 MPG2433 $28503241
2020 27 MPG2333 $28503291
2019 27 MPG2432 $28503282
2018 27 MPG2432 $28503282
2017 27 MPG2332 $28503362
2016 27 MPG2432 $28503252
2015 27 MPG2432 $28503252
2014 27 MPG2431 $28503361

Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Marked against the rest of the compact cars bay

Among the 227 compact cars models tracked here, the Mercedes-Benz CLA250 4matic ranks 43 on current figures, against a class average of 26.6 MPG — the square tick on the gauge above.

Closest more-efficient alternatives in the same class: Chevrolet Prizm (29.3), Ford Focus FWD FFV (29.3), Hyundai Veloster (29.3), Audi A4 (30), BMW 330i (30).

Tailpipe CO₂ is rated at 311 grams per mile, which works out to roughly 4.7 tonnes a year at 15,000 miles.

Questions asked across the counter

What MPG does the Mercedes-Benz CLA250 4matic get?

The 2026 Mercedes-Benz CLA250 4matic is rated at 29 MPG combined by the EPA — 25 city and 34 highway. Across all 13 model years in the database it averages 27.4 MPG, ranging from 27 to 29 depending on year and trim.

How much does a Mercedes-Benz CLA250 4matic cost in fuel per year?

At 29 MPG and 15,000 miles a year, it burns about 517 gallons — roughly $1655 a year with fuel at $3.20 a gallon, or $0.110 per mile. The EPA's own published annual figure for the 2026 model is $2650.

Has the Mercedes-Benz CLA250 4matic become more efficient over time?

Yes. It has gone from 27 MPG in 2014 to 29 in 2026 — an improvement of 2 MPG, or 7% across 13 model years.

Is the Mercedes-Benz CLA250 4matic efficient for its class?

It ranks 43 of 227 in the Compact Cars class on current figures, against a class average of 26.6 MPG. That is 2.4 better than typical for the class.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Cost per mile, per kilometre and per year are computed at a reference price of $3.20 a gallon over 15,000 miles, fixed JUL 2026 — set your own pump price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.