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2011 Mercedes-Benz C-Class Gas Tank Size & Fuel Capacity

Sedan 6 trims listed 1 fuel-system recall ← 2010 2012 →

Fuel tank capacity

17.4gal · 66 L

The 2011 Mercedes-Benz C-Class has a fuel tank capacity of 17.4 gallons (66 liters) on every trim.

A full tank is good for roughly 331–452 highway miles or 226–313 miles around town, going by the EPA ratings.

17.4 gal · Smaller than 68% of 2011 models we list.

Highway range
331–452 mi
City range
226–313 mi
Fuel
Premium unleaded (required)
EPA combined
15–20 MPG
EPA size class
Compact Cars

2011 Mercedes-Benz C-Class fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Powertrain
no difference
Drive
no difference
Engine
no difference

All 6 trims

MPG and range are city / highway.

TrimEngineDrive Tank Fuel MPG city / hwy Range city / hwy
C300 Luxury 4MATIC 4dr Sedan AWD 3.0L 6cyl 7A · AWD · Premium (required) MPG 17 / 24Range 296 / 418 mi 3.0L 6cyl 7A AWD 17.4 gal66 L Premiumrequired 17 / 24 296 / 418 mi
C300 Luxury 4dr Sedan 3.0L 6cyl 7A · RWD · Flex-fuel (premium required or E85) MPG 18 / 26Range 313 / 452 mi 3.0L 6cyl 7A Flex-fuel RWD 17.4 gal66 L Flex-fuelpremium required or E85 18 / 26 313 / 452 mi
C300 Sport 4MATIC 4dr Sedan AWD 3.0L 6cyl 7A · AWD · Premium (required) MPG 17 / 24Range 296 / 418 mi 3.0L 6cyl 7A AWD 17.4 gal66 L Premiumrequired 17 / 24 296 / 418 mi
C300 Sport 4dr Sedan 3.0L 6cyl 6M · RWD · Premium (required) MPG 18 / 26Range 313 / 452 mi 3.0L 6cyl 6M RWD 17.4 gal66 L Premiumrequired 18 / 26 313 / 452 mi
C350 Sport 4dr Sedan 3.5L 6cyl 7A · RWD · Premium (required) MPG 17 / 25Range 296 / 435 mi 3.5L 6cyl 7A RWD 17.4 gal66 L Premiumrequired 17 / 25 296 / 435 mi
C63 AMG 4dr Sedan 6.2L 8cyl 7A · RWD · Premium (required) MPG 13 / 19Range 226 / 331 mi 6.2L 8cyl 7A RWD 17.4 gal66 L Premiumrequired 13 / 19 226 / 331 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 2011 Mercedes-Benz C-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 21 MPG, a full 17.4-gallon tank covers about 365 miles.

GaugeGallonsHighway milesCity miles
Full17.4452313
3/413.1339235
1/28.7226157
1/44.411378
1/82.25739

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 714 gallons, roughly 41 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
15–20 MPG
Tailpipe CO2
444–592 g/mi
Gas guzzler tax
Yes
Source
EPA ratings

What it costs to fill up a 2011 Mercedes-Benz C-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
17.4 galE85 (flex-fuel trims)$3.31$57.59$43.20

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)$3,771

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

C-Class tank size in other years

The 2011 C-Class uses the same 17.4 gal tank as every C-Class since 2008.

Model yearTankLongest highway range
2016 C-Class 13.2–18.0 gal 612 mi
2015 C-Class 17.4–18.0 gal 612 mi
2014 C-Class 17.4 gal 539 mi
2013 C-Class 17.4 gal 539 mi
2012 C-Class 17.4 gal 539 mi
2011 C-Class 17.4 gal 452 mi
2010 C-Class 17.4 gal 452 mi
2009 C-Class 17.4 gal 452 mi
2008 C-Class 17.4 gal 452 mi
2007 C-Class 16.4 gal 443 mi
2006 C-Class 16.4 gal 443 mi
Mercedes-Benz C-Class fuel tank by model yearSmallest tank Larger tank options
199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026
← 2010 Mercedes-Benz C-Class Every C-Class year 2012 Mercedes-Benz C-Class →

2011 Mercedes-Benz C-Class vs similar 2011 sedans

At 17.4 gallons, the C-Class's largest tank ranks fourth of the five 2011 sedans compared here. The INFINITI G Sedan carries the most (20.0 gal) and the Audi A4 the least (17.2 gal).

2011 modelTankLongest highway range
INFINITI G Sedan 20.0 gal 580 mi
Acura TSX 18.5 gal 574 mi
Volvo S60 17.8 gal 463 mi
Mercedes-Benz C-Class 17.4 gal 452 mi
Audi A4 17.1–17.2 gal 530 mi

Other 2011 sedans of a similar size, one model per brand.

2011 Mercedes-Benz C-Class fuel system recalls

NHTSA lists 1 fuel-system recall for the 2011 Mercedes-Benz C-Class, out of 6 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Fuel systemDec 3, 2012 · NHTSA 12V557000 · Mercedes-Benz USA, LLC. · 5,800 vehicles

Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.

Risk and remedy

Risk: If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.

Remedy: Mercedes-Benz will notify owners, and dealers will replace the fuel filter, free of charge. The recall campaign is expected to begin in February 2013. Owners may contact Mercedes-Benz at 1-800-367-6372.

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

Frequently asked questions

What is the fuel tank capacity of the 2011 Mercedes-Benz C-Class?

The 2011 Mercedes-Benz C-Class holds 17.4 gallons (66 liters) on every trim we list.

How many gallons and liters does the 2011 Mercedes-Benz C-Class gas tank hold?

The 2011 Mercedes-Benz C-Class tank holds 66 liters, or 17.4 gallons in US gallons.

Does the 2011 Mercedes-Benz C-Class tank change with the powertrain?

No. Gas and Flex-fuel (E85) versions of the 2011 Mercedes-Benz C-Class use the same 17.4 gal tank.

Does AWD change the 2011 Mercedes-Benz C-Class gas tank?

No. RWD and AWD versions of the 2011 Mercedes-Benz C-Class use the same 17.4 gal tank.

How far can a 2011 Mercedes-Benz C-Class go on a full tank?

About 331–452 miles on the highway and 226–313 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 2011 Mercedes-Benz C-Class go on a quarter tank?

About 113 highway miles or 78 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 2011 Mercedes-Benz C-Class take?

Premium unleaded (required), or Flex-fuel (premium unleaded required/E85), depending on the engine. The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2011 Mercedes-Benz C-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 2011 Mercedes-Benz C-Class?

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

Does the 2011 Mercedes-Benz C-Class have a bigger gas tank than the Audi A4?

Yes. The 2011 Mercedes-Benz C-Class holds up to 17.4 gallons; the 2011 Audi A4 holds up to 17.2.

Has the 2011 Mercedes-Benz C-Class had a fuel pump or fuel system recall?

Yes. NHTSA lists 1 fuel-system recall for the 2011 Mercedes-Benz C-Class: 12V557000 (fuel system). 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 2011 Mercedes-Benz models

CL-Class23.8 gallons CLS-Class21.1 gallons E-Class17.4–21.1 gallons G-Class25.4 gallons GL-Class26.4 gallons GLK-Class17.4 gallons M-Class23.8–25.1 gallons R-Class21.1 gallons S-Class21.1–23.8 gallons SL-Class21.1 gallons SLK-Class18.5 gallons SLS AMG®22.4 gallons