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2014 Mercedes Benz SLK 350
Photo shows the 2014 model (previous generation): 2014 Mercedes Benz SLK 350. Photo: Greg Gjerdingen, CC BY 2.0, via Wikimedia Commons
  • Newest year: 2016
  • Gas
  • Two-seaters

2016 Mercedes-Benz SLK-Class MPG & Fuel Cost

3 configurations · 22–27 MPG combined

27 MPG
Combined
24 MPG
City
32 MPG
Highway
Annual fuel cost · SLK300 2.0L 4-cyl turbo RWD
$2,950

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 9 of 10 two-seater configurations, MY2016. Ranked against all rated configurations, not sales-weighted.

2016 Mercedes-Benz SLK-Class at a glance

The 2016 Mercedes-Benz SLK-Class has 3 configurations in the EPA database, rated 22–27 MPG combined. The most efficient is the SLK300 2.0L 4-cyl turbo RWD at 27 MPG, which costs about $2,950 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). Annual fuel cost across the configurations runs from $2,950 to $3,630, a $680 difference. The SLK300 2.0L 4-cyl turbo RWD costs less to fuel than 9 of 10 two-seater configurations rated for MY2016 (class median $4,120 a year).

What the 2016 SLK300 2.0L 4-cyl turbo RWD costs to drive

Per month

$246

$2,950 a year ÷ 12

Per 25 miles

$4.92

Per 100 miles

$19.67

Five years

$14,750

5 × the yearly cost, prices held at today's level

vs the two-seater median

$1,170less a year

Class median $4,120 a year, MY2016

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2016 Mercedes-Benz SLK-Class MPG

Gas · 2.0L, 3.5L, 5.5L
Combined
22–27 MPG
Per year
$2,950–$3,630

Gas configurations (3)

2016 Mercedes-Benz SLK-Class gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
SLK300 (Most efficient) 2.0L 4-cyl turbo RWD 24 32 27 $2,950
SLK350 3.5L 6-cyl RWD 21 29 24 $3,330
AMG SLK55 5.5L 8-cyl RWD 19 28 22 $3,630

3 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the SLK300 2.0L 4-cyl turbo RWD: $3,510 in California and $2,560 in Texas, a $950 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2016 two-seater models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

How does the 2016 Mercedes-Benz SLK-Class compare with the previous generation?

The previous generation (2012-2015 Mercedes-Benz SLK-Class) is rated 22–26 MPG combined and costs $3,080–$3,630 a year to fuel; the 2016 model is rated 22–27 MPG and costs $2,950–$3,630 a year.

What gas mileage does the 2016 Mercedes-Benz SLK-Class get?

EPA rates the 2016 Mercedes-Benz SLK-Class at 22–27 MPG combined across 3 configurations. The most efficient, the SLK300 2.0L 4-cyl turbo RWD, is rated 27 MPG combined (24 city / 32 highway).

How much does it cost to fuel a 2016 Mercedes-Benz SLK-Class per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the SLK300 2.0L 4-cyl turbo RWD costs about $2,950 a year. Across all 3 configurations the cost runs $2,950–$3,630 a year. That is a $680 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2016 Mercedes-Benz SLK-Class 100 miles?

About $19.67 per 100 miles for the SLK300 2.0L 4-cyl turbo RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $19.67 and $24.20 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2016 Mercedes-Benz SLK-Class more efficient in the city or on the highway?

The SLK300 2.0L 4-cyl turbo RWD is rated 24 city and 32 highway MPG, so it is more efficient on the highway, by 8 MPG.

How does the 2016 Mercedes-Benz SLK-Class compare with other two-seater configurations?

The SLK300 2.0L 4-cyl turbo RWD costs about $2,950 a year to fuel, $1,170 less than the class median of $4,120, and less than 9 of 10 two-seater configurations. The comparison covers all 87 rated two-seater configurations for MY2016, not weighted by sales.

Is the 2016 Mercedes-Benz SLK-Class different from the 2015 model?

The most efficient configuration moves from 26 to 27 MPG, up 1. Its annual cost goes from $3,090 to $2,950, $140 less. EPA lists 3 configurations for 2016 against 4 configurations for 2015. See the 2015 Mercedes-Benz SLK-Class for that year.