2005 Mercedes-Benz CLK-Class Gas Tank Size & Fuel Capacity
Fuel tank capacity
16.4gal · 62 L
The 2005 Mercedes-Benz CLK-Class has a fuel tank capacity of 16.4 gallons (62 liters) on every trim.
A full tank is good for roughly 344–426 highway miles or 230–295 miles around town, going by the EPA ratings.
16.4 gal · Smaller than 77% of 2005 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2005 Mercedes-Benz CLK-Class fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
- no difference
All 6 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| CLK320 2dr Cabriolet 3.2L 6cyl 5A · RWD MPG 18 / 24Range 295 / 394 mi | 3.2L 6cyl 5A | RWD | 16.4 gal62 L | 18 / 24 | 295 / 394 mi | |
| CLK320 2dr Coupe 3.2L 6cyl 5A · RWD MPG 18 / 26Range 295 / 426 mi | 3.2L 6cyl 5A | RWD | 16.4 gal62 L | 18 / 26 | 295 / 426 mi | |
| CLK500 2dr Cabriolet 5.0L 8cyl 7A · RWD MPG 15 / 23Range 246 / 377 mi | 5.0L 8cyl 7A | RWD | 16.4 gal62 L | 15 / 23 | 246 / 377 mi | |
| CLK500 2dr Coupe 5.0L 8cyl 7A · RWD MPG 15 / 23Range 246 / 377 mi | 5.0L 8cyl 7A | RWD | 16.4 gal62 L | 15 / 23 | 246 / 377 mi | |
| CLK55 AMG 2dr Cabriolet 5.4L 8cyl 5A · RWD MPG 14 / 21Range 230 / 344 mi | 5.4L 8cyl 5A | RWD | 16.4 gal62 L | 14 / 21 | 230 / 344 mi | |
| CLK55 AMG 2dr Coupe 5.4L 8cyl 5A · RWD MPG 14 / 21Range 230 / 344 mi | 5.4L 8cyl 5A | RWD | 16.4 gal62 L | 14 / 21 | 230 / 344 mi | |
| No trim matches all of these filters. | ||||||
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 2005 Mercedes-Benz CLK-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 18 MPG, a full 16.4-gallon tank covers about 295 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 16.4 | 377 | 246 |
| 3/4 | 12.3 | 283 | 184 |
| 1/2 | 8.2 | 189 | 123 |
| 1/4 | 4.1 | 94 | 61 |
| 1/8 | 2.1 | 47 | 31 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 833 gallons, roughly 51 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
- 16–21 MPG
- Tailpipe CO2
- 423–555 g/mi
- Gas guzzler tax
- Yes
- Source
- EPA ratings
What it costs to fill up a 2005 Mercedes-Benz CLK-Class
$86.59 to fill the 16.4-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 16.4 gal | Premium | $5.28 | $86.59 | $64.94 |
By region, 16.4-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $80.85 |
| Midwest | $5.37 | $88.07 |
| Gulf CoastLowest | $4.57 | $74.95 |
| Rocky Mountain | $5.12 | $83.97 |
| West Coast | $6.08 | $99.71 |
| CaliforniaHighest | $6.36 | $104.30 |
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
- 16.4-gallon tank$86.59
- A year of driving (15,000 mi)$4,400
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
CLK-Class tank size in other years
The 2005 CLK-Class uses the same 16.4 gal tank as every CLK-Class since 1998.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2009 CLK-Class | 16.4 gal | 410 mi |
| 2008 CLK-Class | 16.4 gal | 410 mi |
| 2007 CLK-Class | 16.4 gal | 410 mi |
| 2006 CLK-Class | 16.4 gal | 426 mi |
| 2005 CLK-Class | 16.4 gal | 426 mi |
| 2004 CLK-Class | 16.4 gal | 394 mi |
| 2003 CLK-Class | 16.4 gal | 410 mi |
| 2002 CLK-Class | 16.4 gal | 410 mi |
| 2001 CLK-Class | 16.4 gal | 426 mi |
| 2000 CLK-Class | 16.4 gal | 426 mi |
2005 Mercedes-Benz CLK-Class vs similar 2005 coupes
At 16.4 gallons, the CLK-Class's largest tank ranks fifth of the six 2005 coupes compared here. The Jaguar XK-Series carries the most (19.9 gal) and the Saab 9-3 the least (16.4 gal).
| 2005 model | Tank | Longest highway range |
|---|---|---|
| Jaguar XK-Series | 19.9 gal | 478 mi |
| Lexus SC 430 | 19.8 gal | 436 mi |
| Cadillac XLR | 18.0 gal | 414 mi |
| BMW M3 | 16.6 gal | 365 mi |
| Mercedes-Benz CLK-Class | 16.4 gal | 426 mi |
| Saab 9-3 | 16.4 gal | 476 mi |
Other 2005 coupes of a similar size, one model per brand.
2005 Mercedes-Benz CLK-Class fuel system recalls
None of the 3 recalls NHTSA lists for the 2005 Mercedes-Benz CLK-Class involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2005 Mercedes-Benz CLK-Class?
The 2005 Mercedes-Benz CLK-Class holds 16.4 gallons (62 liters) on every trim we list.
How many gallons and liters does the 2005 Mercedes-Benz CLK-Class gas tank hold?
The 2005 Mercedes-Benz CLK-Class tank holds 62 liters, or 16.4 gallons in US gallons.
How far can a 2005 Mercedes-Benz CLK-Class go on a full tank?
About 344–426 miles on the highway and 230–295 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 2005 Mercedes-Benz CLK-Class go on a quarter tank?
About 94 highway miles or 61 in town from the 16.4-gallon tank, which has roughly 4.1 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2005 Mercedes-Benz CLK-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 2005 Mercedes-Benz CLK-Class?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 16.4-gallon tank from empty costs $86.59. It ranges from $74.95 in the Gulf Coast to $104.30 in California.
How much does a full tank of gas weigh in a 2005 Mercedes-Benz CLK-Class?
About 102 pounds for the 16.4-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2005 Mercedes-Benz CLK-Class have a bigger gas tank than the BMW M3?
No. The 2005 BMW M3 holds up to 16.6 gallons; the 2005 Mercedes-Benz CLK-Class holds up to 16.4.
Has the 2005 Mercedes-Benz CLK-Class had a fuel pump or fuel system recall?
No. None of the 3 recalls NHTSA lists for the 2005 Mercedes-Benz CLK-Class involve the fuel system.
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.