2008 Mercedes-Benz CLK-Class Gas Tank Size & Fuel Capacity
Fuel tank capacity
16.4gal · 62 L
The 2008 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 295–410 highway miles or 197–279 miles around town, going by the EPA ratings.
16.4 gal · Smaller than 76% of 2008 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2008 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 | |
|---|---|---|---|---|---|---|
| CLK350 2dr Convertible 3.5L 6cyl 7A · RWD MPG 17 / 25Range 279 / 410 mi | 3.5L 6cyl 7A | RWD | 16.4 gal62 L | 17 / 25 | 279 / 410 mi | |
| CLK350 2dr Coupe 3.5L 6cyl 7A · RWD MPG 17 / 25Range 279 / 410 mi | 3.5L 6cyl 7A | RWD | 16.4 gal62 L | 17 / 25 | 279 / 410 mi | |
| CLK550 2dr Convertible 5.5L 8cyl 7A · RWD MPG 15 / 21Range 246 / 344 mi | 5.5L 8cyl 7A | RWD | 16.4 gal62 L | 15 / 21 | 246 / 344 mi | |
| CLK550 2dr Coupe 5.5L 8cyl 7A · RWD MPG 15 / 22Range 246 / 361 mi | 5.5L 8cyl 7A | RWD | 16.4 gal62 L | 15 / 22 | 246 / 361 mi | |
| CLK63 AMG 2dr Convertible 6.2L 8cyl 7A · RWD MPG 12 / 18Range 197 / 295 mi | 6.2L 8cyl 7A | RWD | 16.4 gal62 L | 12 / 18 | 197 / 295 mi | |
| CLK63 AMG Black Series 2dr Coupe 6.2L 8cyl 7A · RWD MPG 12 / 19Range 197 / 312 mi | 6.2L 8cyl 7A | RWD | 16.4 gal62 L | 12 / 19 | 197 / 312 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 2008 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 20 MPG, a full 16.4-gallon tank covers about 328 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 16.4 | 410 | 279 |
| 3/4 | 12.3 | 308 | 209 |
| 1/2 | 8.2 | 205 | 139 |
| 1/4 | 4.1 | 102 | 70 |
| 1/8 | 2.1 | 51 | 35 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 gallons, roughly 46 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
- 14–20 MPG
- Tailpipe CO2
- 444–635 g/mi
- Gas guzzler tax
- Yes
- Source
- EPA ratings
What it costs to fill up a 2008 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)$3,960
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 2008 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 |
2008 Mercedes-Benz CLK-Class vs similar 2008 coupes
At 16.4 gallons, the CLK-Class's largest tank ranks third of the four 2008 coupes compared here. The Jaguar XK-Series carries the most (18.8 gal) and the Volvo C70 the least (16.4 gal).
| 2008 model | Tank | Longest highway range |
|---|---|---|
| Jaguar XK-Series | 18.8 gal | 470 mi |
| BMW M3 | 16.6 gal | 332 mi |
| Mercedes-Benz CLK-Class | 16.4 gal | 410 mi |
| Volvo C70 | 16.4 gal | 443 mi |
Other 2008 coupes of a similar size, one model per brand.
2008 Mercedes-Benz CLK-Class fuel system recalls
None of the 3 recalls NHTSA lists for the 2008 Mercedes-Benz CLK-Class involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2008 Mercedes-Benz CLK-Class?
The 2008 Mercedes-Benz CLK-Class holds 16.4 gallons (62 liters) on every trim we list.
How many gallons and liters does the 2008 Mercedes-Benz CLK-Class gas tank hold?
The 2008 Mercedes-Benz CLK-Class tank holds 62 liters, or 16.4 gallons in US gallons.
How far can a 2008 Mercedes-Benz CLK-Class go on a full tank?
About 295–410 miles on the highway and 197–279 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 2008 Mercedes-Benz CLK-Class go on a quarter tank?
About 102 highway miles or 70 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 2008 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 2008 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 2008 Mercedes-Benz CLK-Class?
About 102 pounds for the 16.4-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2008 Mercedes-Benz CLK-Class have a bigger gas tank than the Jaguar XK-Series?
No. The 2008 Jaguar XK-Series holds up to 18.8 gallons; the 2008 Mercedes-Benz CLK-Class holds up to 16.4.
Has the 2008 Mercedes-Benz CLK-Class had a fuel pump or fuel system recall?
No. None of the 3 recalls NHTSA lists for the 2008 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.