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2012 Mercedes-Benz CL-Class Gas Tank Size & Fuel Capacity

Coupe 4 trims listed 1 fuel-system recall ← 2011 2013 →

Fuel tank capacity

21.9–23.8gal · 83–90 L

The 2012 Mercedes-Benz CL-Class has a fuel tank capacity of 21.9 to 23.8 gallons (83–90 liters), depending on the trim. The most common size is 23.8 gallons, used on 3 trims.

A full tank is good for roughly 428–526 highway miles or 286–357 miles around town, going by the EPA ratings.

23.8 gal · Bigger than 78% of 2012 models we list.

Highway range
428–526 mi
City range
286–357 mi
Fuel
Premium unleaded (required)
EPA combined
14–18 MPG
EPA size class
Compact Cars

2012 Mercedes-Benz CL-Class fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Drive
Engine

All 4 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
CL550 4MATIC 2dr Coupe AWD 4.7L 8cyl Turbo 7A · AWD MPG 15 / 24Range 329 / 526 mi 4.7L 8cyl Turbo 7A AWD 21.9 gal83 L 15 / 24 329 / 526 mi
CL600 2dr Coupe 5.5L 12cyl Turbo 5A · RWD MPG 12 / 18Range 286 / 428 mi 5.5L 12cyl Turbo 5A RWD 23.8 gal90 L 12 / 18 286 / 428 mi
CL63 AMG 2dr Coupe 5.5L 8cyl Turbo 7A · RWD MPG 15 / 22Range 357 / 524 mi 5.5L 8cyl Turbo 7A RWD 23.8 gal90 L 15 / 22 357 / 524 mi
CL65 AMG 2dr Coupe 6.0L 12cyl Turbo 5A · RWD MPG 12 / 18Range 286 / 428 mi 6.0L 12cyl Turbo 5A RWD 23.8 gal90 L 12 / 18 286 / 428 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 2012 Mercedes-Benz CL-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 14 MPG, a full 23.8-gallon tank covers about 333 miles.

GaugeGallonsHighway milesCity miles
Full23.8428286
3/417.9321214
1/211.9214143
1/46.010771
1/83.05436

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,071 gallons, roughly 45 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
14–18 MPG
Tailpipe CO2
494–635 g/mi
Gas guzzler tax
Yes
Source
EPA ratings

What it costs to fill up a 2012 Mercedes-Benz CL-Class

$125.66 to fill the 23.8-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
21.9 galPremium$5.28$115.63$86.72
23.8 galPremium$5.28$125.66$94.25

By region, 23.8-gallon tank

RegionPremium / galFill from empty
East Coast$4.93$117.33
Midwest$5.37$127.81
Gulf CoastLowest$4.57$108.77
Rocky Mountain$5.12$121.86
West Coast$6.08$144.70
CaliforniaHighest$6.36$151.37

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

  • 21.9-gallon tank$115.63
  • 23.8-gallon tank$125.66
  • A year of driving (15,000 mi)$5,657

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

CL-Class tank size in other years

The tank changed for 2012: 21.9–23.8 gal, down from 23.8 gal on the 2011 CL-Class.

Model yearTankLongest highway range
2014 CL-Class 21.9–23.8 gal 526 mi
2013 CL-Class 21.9–23.8 gal 526 mi
2012 CL-Class 21.9–23.8 gal 526 mi
2011 CL-Class 23.8 gal 547 mi
2010 CL-Class 23.8 gal 500 mi
2009 CL-Class 23.8 gal 500 mi
2008 CL-Class 23.8 gal 500 mi
2007 CL-Class 23.8 gal 500 mi
Mercedes-Benz CL-Class fuel tank by model yearSmallest tank Larger tank options
19981999200020012002200320042005200620072008200920102011201220132014
← 2011 Mercedes-Benz CL-Class Every CL-Class year 2013 Mercedes-Benz CL-Class →

2012 Mercedes-Benz CL-Class fuel system recalls

NHTSA lists 1 fuel-system recall for the 2012 Mercedes-Benz CL-Class, out of 1 recall 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 2012 Mercedes-Benz CL-Class?

The 2012 Mercedes-Benz CL-Class holds between 21.9 and 23.8 gallons, depending on the trim. 23.8 gallons is the usual size; the smaller 21.9-gallon tank is on the CL550 4MATIC 2dr Coupe AWD.

How many gallons and liters does the 2012 Mercedes-Benz CL-Class gas tank hold?

The 2012 Mercedes-Benz CL-Class tank holds 83–90 liters, or 21.9–23.8 gallons in US gallons.

Which 2012 Mercedes-Benz CL-Class has the biggest gas tank?

The 23.8-gallon tank is on the CL600 2dr Coupe, CL63 AMG 2dr Coupe, CL65 AMG 2dr Coupe. The smallest tank, 21.9 gallons, is on the CL550 4MATIC 2dr Coupe AWD.

Does AWD change the 2012 Mercedes-Benz CL-Class gas tank?

Yes. AWD: 21.9 gal; RWD: 23.8 gal.

How far can a 2012 Mercedes-Benz CL-Class go on a full tank?

About 428–526 miles on the highway and 286–357 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 2012 Mercedes-Benz CL-Class go on a quarter tank?

About 107 highway miles or 71 in town from the 23.8-gallon tank, which has roughly 6.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

What gas does the 2012 Mercedes-Benz CL-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 2012 Mercedes-Benz CL-Class?

At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 23.8-gallon tank from empty costs $125.66. It ranges from $108.77 in the Gulf Coast to $151.37 in California.

How much does a full tank of gas weigh in a 2012 Mercedes-Benz CL-Class?

About 148 pounds for the 23.8-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Has the 2012 Mercedes-Benz CL-Class had a fuel pump or fuel system recall?

Yes. NHTSA lists 1 fuel-system recall for the 2012 Mercedes-Benz CL-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 2012 Mercedes-Benz models

C-Class17.4 gallons CLS-Class21.1 gallons E-Class17.4–21.1 gallons G-Class25.4 gallons GL-Class26.4 gallons GLK-Class17.4 gallons M-Class24.6 gallons R-Class21.1 gallons S-Class21.1–23.8 gallons SL-Class21.1 gallons SLK-Class18.5 gallons SLS AMG®22.5 gallons