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2022 Mercedes-Benz GLC-Class Gas Tank Size & Fuel Capacity

SUV 3 trims listed 1 fuel-system recall ← 2021 2023 →

Fuel tank capacity

17.4gal · 66 L

The 2022 Mercedes-Benz GLC-Class has a fuel tank capacity of 17.4 gallons (66 liters) on every trim.

A full tank is good for roughly 418–505 highway miles or 313–383 miles around town, going by the EPA ratings.

17.4 gal · Smaller than 54% of 2022 models we list.

Listed separately: 2022 Mercedes-Benz GLC-Class Coupe (17.4 gal).

Highway range
418–505 mi
City range
313–383 mi
Fuel
Premium unleaded (required)
EPA combined
24 MPG
EPA size class
Small Sport Utility Vehicle

2022 Mercedes-Benz GLC-Class fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Drive
no difference
Engine
no difference

All 3 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
AMG GLC 43 4dr SUV AWD 3.0L 6cyl Turbo 9A · AWD MPG 18 / 24Range 313 / 418 mi 3.0L 6cyl Turbo 9A AWD 17.4 gal66 L 18 / 24 313 / 418 mi
GLC 300 4MATIC 4dr SUV AWD 2.0L 4cyl Turbo 9A · AWD MPG 21 / 28Range 365 / 487 mi 2.0L 4cyl Turbo 9A AWD 17.4 gal66 L 21 / 28 365 / 487 mi
GLC 300 4dr SUV 2.0L 4cyl Turbo 9A · RWD MPG 22 / 29Range 383 / 505 mi 2.0L 4cyl Turbo 9A RWD 17.4 gal66 L 22 / 29 383 / 505 mi

Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.

How far a 2022 Mercedes-Benz GLC-Class goes on a tank

Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 23 MPG, a full 17.4-gallon tank covers about 400 miles.

GaugeGallonsHighway milesCity miles
Full17.4487365
3/413.1365274
1/28.7244183
1/44.412291
1/82.26146

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 652 gallons, roughly 37 full tanks.

Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.

EPA combined
24 MPG
Tailpipe CO2
374 g/mi
EPA greenhouse score
5 of 10
Source
EPA ratings

What it costs to fill up a 2022 Mercedes-Benz GLC-Class

$91.87 to fill the 17.4-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
17.4 galPremium$5.28$91.87$68.90

By region, 17.4-gallon tank

RegionPremium / galFill from empty
East Coast$4.93$85.78
Midwest$5.37$93.44
Gulf CoastLowest$4.57$79.52
Rocky Mountain$5.12$89.09
West Coast$6.08$105.79
CaliforniaHighest$6.36$110.66

Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.

Your own price

  • 17.4-gallon tank$91.87
  • A year of driving (15,000 mi)$3,443

Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.

GLC-Class tank size in other years

The 2022 GLC-Class uses the same 17.4 gal tank as every GLC-Class since 2020.

Model yearTankLongest highway range
2025 GLC-Class 16.4–17.4 gal 557 mi
2024 GLC-Class 17.4 gal 557 mi
2023 GLC-Class 17.4 gal 539 mi
2022 GLC-Class 17.4 gal 505 mi
2021 GLC-Class 17.4 gal 505 mi
2020 GLC-Class 17.4 gal 505 mi
2019 GLC-Class 13.2–17.4 gal 470 mi
2018 GLC-Class 13.2–17.4 gal 487 mi
2017 GLC-Class 17.4 gal 487 mi
Mercedes-Benz GLC-Class fuel tank by model yearSmallest tank Larger tank options
201720182019202020212022202320242025
← 2021 Mercedes-Benz GLC-Class Every GLC-Class year 2023 Mercedes-Benz GLC-Class →

2022 Mercedes-Benz GLC-Class vs similar 2022 SUVs

At 17.4 gallons, the GLC-Class's largest tank ranks third of the seven 2022 SUVs compared here. The Audi Q5 carries the most (18.5 gal) and the Lexus NX 350 the least (14.5 gal).

2022 modelTankLongest highway range
Audi Q5 14.3–18.5 gal 537 mi
Land Rover Discovery Sport 17.7 gal 407 mi
Mercedes-Benz GLC-Class 17.4 gal 505 mi
Acura RDX 17.1 gal 479 mi
Alfa Romeo Stelvio 16.9 gal 490 mi
INFINITI QX50 16.0 gal 464 mi
Lexus NX 350 14.5 gal 421 mi

Other 2022 SUVs of a similar size, one model per brand.

2022 Mercedes-Benz GLC-Class fuel system recalls

NHTSA lists 1 fuel-system recall for the 2022 Mercedes-Benz GLC-Class, out of 2 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Delivery · Fuel pumpJun 26, 2023 · NHTSA 23V445000 · Mercedes-Benz USA, LLC · 143,551 vehicles

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.

Risk and remedy

Risk: A loss of drive power can increase the risk of a crash.

Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023070012.

All Mercedes-Benz fuel recalls Look up your tank by VIN

Frequently asked questions

What is the fuel tank capacity of the 2022 Mercedes-Benz GLC-Class?

The 2022 Mercedes-Benz GLC-Class holds 17.4 gallons (66 liters) on every trim we list.

How many gallons and liters does the 2022 Mercedes-Benz GLC-Class gas tank hold?

The 2022 Mercedes-Benz GLC-Class tank holds 66 liters, or 17.4 gallons in US gallons.

Does AWD change the 2022 Mercedes-Benz GLC-Class gas tank?

No. AWD and RWD versions of the 2022 Mercedes-Benz GLC-Class use the same 17.4 gal tank.

How far can a 2022 Mercedes-Benz GLC-Class go on a full tank?

About 418–505 miles on the highway and 313–383 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.

How many miles can a 2022 Mercedes-Benz GLC-Class go on a quarter tank?

About 122 highway miles or 91 in town from the 17.4-gallon tank, which has roughly 4.4 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

What gas does the 2022 Mercedes-Benz GLC-Class take?

Premium unleaded (required). The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2022 Mercedes-Benz GLC-Class?

At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 17.4-gallon tank from empty costs $91.87. It ranges from $79.52 in the Gulf Coast to $110.66 in California.

How much does a full tank of gas weigh in a 2022 Mercedes-Benz GLC-Class?

About 108 pounds for the 17.4-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Does the 2022 Mercedes-Benz GLC-Class have a bigger gas tank than the Alfa Romeo Stelvio?

Yes. The 2022 Mercedes-Benz GLC-Class holds up to 17.4 gallons; the 2022 Alfa Romeo Stelvio holds up to 16.9.

Has the 2022 Mercedes-Benz GLC-Class had a fuel pump or fuel system recall?

Yes. NHTSA lists 1 fuel-system recall for the 2022 Mercedes-Benz GLC-Class: 23V445000 (delivery · fuel pump). Check your VIN at nhtsa.gov/recalls to see if your car is affected.

Sources

  • Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
  • MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
  • Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
  • Recalls: NHTSA recall database (Mercedes-Benz fuel system recalls).

Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.

Other 2022 Mercedes-Benz models

A-Class13.5 gallons AMG® GT21.1 gallons C-Class17.4 gallons CLA-Class13.5 gallons CLS-Class21.1 gallons E-Class17.4–21.1 gallons G-Class26.4 gallons GLA-Class12.7 gallons GLB-Class15.9 gallons GLC-Class Coupe17.4 gallons GLE-Class22.5 gallons GLE-Class Coupe22.5 gallons