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2020 Mercedes-Benz GLB-Class Gas Tank Size & Fuel Capacity

SUV 2 trims listed 1 fuel-system recall 2021 →

Fuel tank capacity

15.9gal · 60 L

The 2020 Mercedes-Benz GLB-Class has a fuel tank capacity of 15.9 gallons (60 liters) on every trim.

A full tank is good for roughly 477–493 highway miles or 366 miles around town, going by the EPA ratings.

15.9 gal · Smaller than 67% of 2020 models we list.

Highway range
477–493 mi
City range
366 mi
Fuel
Premium unleaded (required)
EPA combined
26 MPG
EPA size class
Small Sport Utility Vehicle

2020 Mercedes-Benz GLB-Class fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Drive
no difference

All 2 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
GLB 250 4MATIC 4dr SUV AWD 2.0L 4cyl Turbo 8AM · AWD MPG 23 / 31Range 366 / 493 mi 2.0L 4cyl Turbo 8AM AWD 15.9 gal60 L 23 / 31 366 / 493 mi
GLB 250 4dr SUV 2.0L 4cyl Turbo 8AM · FWD MPG 23 / 30Range 366 / 477 mi 2.0L 4cyl Turbo 8AM FWD 15.9 gal60 L 23 / 30 366 / 477 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 2020 Mercedes-Benz GLB-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 26 MPG, a full 15.9-gallon tank covers about 413 miles.

GaugeGallonsHighway milesCity miles
Full15.9493366
3/411.9370274
1/28.0246183
1/44.012391
1/82.06246

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 577 gallons, roughly 36 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
26 MPG
Tailpipe CO2
338–344 g/mi
EPA greenhouse score
5 of 10
Source
EPA ratings

What it costs to fill up a 2020 Mercedes-Benz GLB-Class

$83.95 to fill the 15.9-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
15.9 galPremium$5.28$83.95$62.96

By region, 15.9-gallon tank

RegionPremium / galFill from empty
East Coast$4.93$78.39
Midwest$5.37$85.38
Gulf CoastLowest$4.57$72.66
Rocky Mountain$5.12$81.41
West Coast$6.08$96.67
CaliforniaHighest$6.36$101.12

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

  • 15.9-gallon tank$83.95
  • A year of driving (15,000 mi)$3,046

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

GLB-Class tank size in other years

2020 is the first GLB-Class model year we list.

Model yearTankLongest highway range
2025 GLB-Class 15.9 gal 525 mi
2024 GLB-Class 15.9 gal 413 mi
2023 GLB-Class 15.9 gal 509 mi
2022 GLB-Class 15.9 gal 509 mi
2021 GLB-Class 15.9 gal 493 mi
2020 GLB-Class 15.9 gal 493 mi
Mercedes-Benz GLB-Class fuel tank by model year
202020212022202320242025
Every GLB-Class year 2021 Mercedes-Benz GLB-Class →

2020 Mercedes-Benz GLB-Class vs similar 2020 SUVs

At 15.9 gallons, the GLB-Class's largest tank ranks fifth of the seven 2020 SUVs compared here. The Jaguar F-PACE carries the most (21.7 gal) and the Volvo XC40 the least (14.2 gal).

2020 modelTankLongest highway range
Jaguar F-PACE 21.7 gal 586 mi
Cadillac XT4 15.9–16.3 gal 477 mi
Lincoln Corsair 16.2 gal 470 mi
INFINITI QX50 16.0 gal 464 mi
Mercedes-Benz GLB-Class 15.9 gal 493 mi
Audi Q3 15.9 gal 429 mi
Volvo XC40 14.2 gal 469 mi

Other 2020 SUVs of a similar size, one model per brand.

2020 Mercedes-Benz GLB-Class fuel system recalls

NHTSA lists 1 fuel-system recall for the 2020 Mercedes-Benz GLB-Class, out of 20 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Fuel injection system · Fuel railDec 13, 2021 · NHTSA 21V961000 · Mercedes-Benz USA, LLC · 139 vehicles

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019 AMG G63, C300, E300, G550, AMG GT63, AMG GT53, 2019-2020 A220, GLA250, GLC300, 2016 C300, 2020 AMG A35, AMG C43, AMG C63, CLA250, E350, E450, GLB250, GLE450, GLS450, GLS580, S560, and SL550 vehicles equipped with a gasoline engine. During the manufacturing process, particles may have been trapped between the fuel rail and injectors, which can cause a fuel leak.

Risk and remedy

Risk: A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.

Remedy: Dealers will replace the fuel rail and fuel injectors, free of charge. Owner notification letters were mailed April 22, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for the recall is 2022030003.

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

Frequently asked questions

What is the fuel tank capacity of the 2020 Mercedes-Benz GLB-Class?

The 2020 Mercedes-Benz GLB-Class holds 15.9 gallons (60 liters) on every trim we list.

How many gallons and liters does the 2020 Mercedes-Benz GLB-Class gas tank hold?

The 2020 Mercedes-Benz GLB-Class tank holds 60 liters, or 15.9 gallons in US gallons.

Does AWD change the 2020 Mercedes-Benz GLB-Class gas tank?

No. AWD and FWD versions of the 2020 Mercedes-Benz GLB-Class use the same 15.9 gal tank.

How far can a 2020 Mercedes-Benz GLB-Class go on a full tank?

About 477–493 miles on the highway and 366 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 2020 Mercedes-Benz GLB-Class go on a quarter tank?

About 123 highway miles or 91 in town from the 15.9-gallon tank, which has roughly 4.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

What gas does the 2020 Mercedes-Benz GLB-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 2020 Mercedes-Benz GLB-Class?

At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 15.9-gallon tank from empty costs $83.95. It ranges from $72.66 in the Gulf Coast to $101.12 in California.

How much does a full tank of gas weigh in a 2020 Mercedes-Benz GLB-Class?

About 99 pounds for the 15.9-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Does the 2020 Mercedes-Benz GLB-Class have a bigger gas tank than the Cadillac XT4?

No. The 2020 Cadillac XT4 holds up to 16.3 gallons; the 2020 Mercedes-Benz GLB-Class holds up to 15.9.

Has the 2020 Mercedes-Benz GLB-Class had a fuel pump or fuel system recall?

Yes. NHTSA lists 1 fuel-system recall for the 2020 Mercedes-Benz GLB-Class: 21V961000 (fuel injection system · fuel rail). 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 2020 Mercedes-Benz models

A-Class13.5 gallons AMG® GT19.8–21.1 gallons C-Class17.4 gallons CLA-Class13.5 gallons CLS-Class21.1 gallons E-Class17.4–21.1 gallons G-Class26.4 gallons GLA-Class14.8 gallons GLC-Class17.4 gallons GLC-Class Coupe17.4 gallons GLE-Class22.5 gallons GLS-Class23.8 gallons