2003 Mercedes-Benz CLK320 (Cabriolet) MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2003 Mercedes-Benz CLK320 (Cabriolet).

The 2003 Mercedes-Benz CLK320 (Cabriolet) runs on premium gasoline and is in the Subcompact Cars car class.

Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2003 Mercedes-Benz CLK320 (Cabriolet) is, we have the information you need.

🛣 How Many Miles per Gallon (MPG) Does a 2003 Mercedes-Benz CLK320 (Cabriolet) Get?

First off, the most commonly asked question. A 2003 Mercedes-Benz CLK320 (Cabriolet) gets up to 17 miles per gallon in the city, and 25 miles per gallon on the highway.

The combined average MPG for the 2003 Mercedes-Benz CLK320 (Cabriolet) is 20 miles per gallon.

💵 What is the Average Yearly Fuel Cost for a 2003 Mercedes-Benz CLK320 (Cabriolet)?

The estimated fuel costs for the 2003 Mercedes-Benz CLK320 (Cabriolet) is $3,700 per year.

That value has been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

If you were to compare a 2003 Mercedes-Benz CLK320 (Cabriolet) to an average vehicle over 5 years, you will spend $7,000 more on fuel.

🛢 How Many Barrels of Petroleum Does a 2003 Mercedes-Benz CLK320 (Cabriolet) Consume?

The 2003 Mercedes-Benz CLK320 (Cabriolet) will consume roughly 15 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

Overview

The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2003 Mercedes-Benz CLK320 (Cabriolet).

City MPG17
Highway MPG25
Combined MPG20
Save/Spend vs Average CarSpend $7,000
Fuel Cost$3,700
Fuel Type 1Premium
Barrels of Petroleum15
DriveRear-Wheel Drive
Cylinders6
Displacement3.2
TransmissionAutomatic 5-spd
Vehicle ClassSubcompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Related Mercedes-Benz Models from 2003

If you're interested in other Mercedes-Benz models from 2003, you can find them in the table below. You can click the model link to find miles per gallon and emission information for that model.

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "2003 Mercedes-Benz CLK320 (Cabriolet) MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/mercedes-benz/clk320-cabriolet/2003.

  • "2003 Mercedes-Benz CLK320 (Cabriolet) MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/mercedes-benz/clk320-cabriolet/2003. Accessed January 3, 2026.

  • 2003 Mercedes-Benz CLK320 (Cabriolet) MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/mercedes-benz/clk320-cabriolet/2003.