Mercedes-Benz SLK-Class Engine Specifications
The 2016 Mercedes-Benz SLK-Class is offered with 1.8L–5.5L engines in 6 and 8 and 4-cylinder form, per EPA fuel-economy records.
Latest model year (2016):
The Mercedes-Benz SLK-Class is available with 6 3.5L and Automatic 7-spd (Rear-Wheel Drive).
Mercedes-Benz SLK-Class Engine Specs — All Years
| Year | Trim | Cylinders | Displ. | Transmission | Drive | Fuel Type | Vehicle Class |
|---|---|---|---|---|---|---|---|
| 2016Config 1 of 3 | Auto 7-spd, 6 cyl, 3.5 L | 6 | 3.5L | Automatic 7-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
| 2016Config 2 of 3 | Auto 7-spd, 8 cyl, 5.5 L | 8 | 5.5L | Automatic 7-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
| 2016Config 3 of 3 | Auto 9-spd, 4 cyl, 2.0 L | 4 | 2.0L | Automatic 9-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
| 2015Config 1 of 4 | Auto 7-spd, 4 cyl, 1.8 L | 4 | 1.8L | Automatic 7-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
| 2015Config 2 of 4 | Auto 7-spd, 6 cyl, 3.5 L | 6 | 3.5L | Automatic 7-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
| 2015Config 3 of 4 | Auto 7-spd, 8 cyl, 5.5 L | 8 | 5.5L | Automatic 7-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
| 2015Config 4 of 4 | Man 6-spd, 4 cyl, 1.8 L | 4 | 1.8L | Manual 6-spd | Rear-Wheel Drive | Premium Gasoline | Two Seaters |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Mercedes-Benz SLK-Class data analysis
How Mercedes-Benz SLK-Class engine displacement varies
Across 7 configurations recorded for the 2015 through 2016 Mercedes-Benz SLK-Class, engine displacement runs from 1.8 litres to 5.5 litres. The strongest figure belongs to the 2015 Mercedes-Benz SLK-Class (SIDI) at 1.8 litres, and the weakest to the 2015 car (SIDI) at 5.5 litres — a spread of 67%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Mercedes-Benz SLK-Class would be misleading.
What changed for 2016
Average engine displacement for the 2016 Mercedes-Benz SLK-Class is 3.7 litres, against 3.2 litres for the 2015 car — it rose by 0.5 litres. Buyers who care most about this figure should look at the earlier model years in the table above before assuming newest is best.
How to read this Mercedes-Benz SLK-Class data
This page lists every 2015 through 2016 Mercedes-Benz SLK-Class record we hold for this measurement — 7 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.
Where these Mercedes-Benz SLK-Class figures come from
Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Mercedes-Benz SLK-Class record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.
Frequently Asked Questions About SLK-Class Engine Specs
What engine does the Mercedes-Benz SLK-Class have?
The Mercedes-Benz SLK-Class is available with 6 cylinder engines ranging up to 3.5L. Transmission and drivetrain options vary by trim. See the full table above.
Is the Mercedes-Benz SLK-Class available with all-wheel drive?
Check the drive column in the table above to see available drivetrain configurations.
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