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 2021 Mercedes-Benz Metris 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 21 MPG, a full 18.5-gallon tank covers about 389 miles.
Gauge
Gallons
Highway miles
City miles
Full
18.5
426
352
3/4
13.9
319
264
1/2
9.3
213
176
1/4
4.6
106
88
1/8
2.3
53
44
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 714 gallons, roughly 39 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.
NHTSA lists 2 fuel-system recalls for the 2021 Mercedes-Benz Metris, out of 7 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Daimler Vans USA, LLC (DVUSA) is recalling certain 2021 Freightliner Sprinter and 2021-2023 Mercedes-Benz Sprinter and Metris vehicles. 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 November 1, 2023. Owners may contact DVUSA customer service at 1-877-762-8267. DVUSA's number for this recall is 4790205.
Delivery · Hoses, lines/piping, and fittingsMar 8, 2022 · NHTSA 22V134000 · Daimler Vans USA, LLC · 42,132 vehicles
Daimler Vans USA, LLC (DVUSA) is recalling certain 2017-2022 Mercedes-Benz Metris vehicles. The connection of the upper and lower fuel hoses to the engine may be insecure, which can result in a fuel leak.
Risk and remedy
Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: Dealers will inspect and repair the fuel hose connections, and replace the clamps and fuel hose, as necessary, free of charge. Owner notification letters were mailed May 5, 2022. Owners may contact DVUSA customer service at 1-877-762-8267. DVUSA's number for this recall is VS2KRAUCH.
What is the fuel tank capacity of the 2021 Mercedes-Benz Metris?
The 2021 Mercedes-Benz Metris holds 18.5 gallons (70 liters) on every trim we list.
How many gallons and liters does the 2021 Mercedes-Benz Metris gas tank hold?
The 2021 Mercedes-Benz Metris tank holds 70 liters, or 18.5 gallons in US gallons.
How far can a 2021 Mercedes-Benz Metris go on a full tank?
About 407–426 miles on the highway and 333–352 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 2021 Mercedes-Benz Metris go on a quarter tank?
About 106 highway miles or 88 in town from the 18.5-gallon tank, which has roughly 4.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Mercedes-Benz Metris take?
Premium unleaded (recommended). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 Mercedes-Benz Metris?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 18.5-gallon tank from empty costs $97.68. It ranges from $84.55 in the Gulf Coast to $117.66 in California.
How much does a full tank of gas weigh in a 2021 Mercedes-Benz Metris?
About 115 pounds for the 18.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Has the 2021 Mercedes-Benz Metris had a fuel pump or fuel system recall?
Yes. NHTSA lists 2 fuel-system recalls for the 2021 Mercedes-Benz Metris: 23V444000 (delivery · fuel pump); 22V134000 (delivery · hoses, lines/piping, and fittings). 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).