2015 Mercedes-Benz SLK-Class
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2015 models.

- Class
- Two Seaters
- Body styles
- Slk 250 2dr Convertible, Slk 350 2dr Convertible, Slk 55 Amg 2dr Convertible
- Engines
- 1.8L 4-cyl turbo, 3.5L 6-cyl, 5.5L 8-cyl
- Drivetrain
- Rear-Wheel Drive
- Fuel
- Premium Gasoline
- MPG (best)
- 26 combined · 23 city / 32 hwy
- Length
- 162.6 in
- Curb weight
- 3,252–3,549 lb
- NHTSA rating
- Not rated
- Recalls
- 0 campaigns
Pros & cons
What's good
- Excellent fuel economyUp to 26 MPG combined — 25% better than the average 2015 two seaters (20.8 MPG).
- No recalls so far
Watch out for
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Calculated from EPA, NHTSA and vPIC data against 4 similar 2015 models — not a review. How we calculate this →
Overview
The 2015 Mercedes-Benz SLK-Class is a two seaters offered with 3 engines (1.8L 4-cyl turbo, 3.5L 6-cyl and 5.5L 8-cyl) and rear-wheel drive.
It measures about 163 inches long and 71 inches wide on a 96-inch wheelbase, with a curb weight of roughly 3,252 lb (Slk 250 2dr Convertible).
EPA rates its most efficient version at 26 MPG combined (23 city / 32 highway), 25% better than the 2015 two seaters average of 20.8 MPG, for an estimated $3,150 a year in fuel.
NHTSA has not published a 5-Star overall rating for this model year.
There are no recalls or owner complaints on file with NHTSA for this model year.
What changed for 2015
No changes to engines, powertrains, drivetrains, size, EPA ratings or NHTSA crash rating compared with the 2014 SLK-Class — a carry-over year in the data.
Compared with 2014; trim, feature and price changes aren't covered. See the 2014 SLK-Class →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| Slk 250 2dr Convertible | 162.6 in | 71.3 in | 51.2 in | 95.7 in | 61.4 / 61.8 in | 3,252 lb | 50/50 |
| Slk 350 2dr Convertible | 162.6 in | 71.3 in | 51.2 in | 95.7 in | 61.4 / 61.8 in | 3,395 lb | 50/50 |
| Slk 55 Amg 2dr Convertible | 162.6 in | 71.3 in | 51.2 in | 95.7 in | 61.4 / 61.8 in | 3,549 lb | 50/50 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| SLK250 | 1.8L 4-cyl turbo | Automatic 7-spd | Rear-Wheel Drive | 23 / 32 / 26 | +25% | $3,150 | 342 |
| SLK250 | 1.8L 4-cyl turbo | Manual 6-spd | Rear-Wheel Drive | 22 / 32 / 26 | +25% | $3,150 | 346 |
| SLK350 | 3.5L 6-cyl | Automatic 7-spd | Rear-Wheel Drive | 21 / 28 / 24 | +15% | $3,400 | 371 |
| SLK55 AMG | 5.5L 8-cyl | Automatic 7-spd | Rear-Wheel Drive | 19 / 28 / 22 | +6% | $3,750 | 401 |
EPA estimates; "vs. class" is combined MPG against the 2015 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2015 Mercedes-Benz SLK-Class.
Similar 2015 two seaterss
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2015 Mercedes-Benz SLK-Class (this car) | 26 MPG | Not rated | 0 |
| 2015 Porsche Cayman | 25 MPG | Not rated | 2 |
| 2015 Porsche Boxster | 25 MPG | Not rated | 2 |
| 2015 BMW Z4 | 26 MPG | Not rated | 1 |
| 2015 Audi R8 Spyder | 17 MPG | Not rated | 0 |
Recalls (0)
No vehicle recalls on file with NHTSA for the 2015 Mercedes-Benz SLK-Class.
Check your VIN for open recalls at NHTSA ↗Not every 2015 Mercedes-Benz SLK-Class is affected — only a VIN check confirms your car.
Owner-reported problems
No owner complaints for the 2015 Mercedes-Benz SLK-Class in NHTSA's database since 2015.
Used 2015 Mercedes-Benz SLK-Class buyer's checklist
- Run the VIN at nhtsa.gov/recalls. No recalls on file, but check anyway.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2015 Mercedes-Benz SLK-Class. Not a substitute for a professional inspection.
Other SLK-Class years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2016 SLK-Class | 27 | 162.6 in | Not rated | 0 | 0 |
| 2014 SLK-Class | 26 | 162.6 in | Not rated | 0 | 0 |
| 2013 SLK-Class | 26 | 162.6 in | Not rated | 0 | 0 |
| 2012 SLK-Class | 26 | 162.6 in | Not rated | 0 | 0 |
| 2011 SLK-Class | 21 | – | Not rated | 0 | 0 |
| 2010 SLK-Class | 21 | – | Not rated | 0 | 0 |
| 2009 SLK-Class | 21 | – | Not rated | 0 | 0 |
| 2008 SLK-Class | 20 | – | Not rated | 0 | 0 |
| 2007 SLK-Class | 20 | – | Not rated | 0 | 0 |
| 2006 SLK-Class | 21 | – | Not rated | 0 | 0 |
| 2005 SLK-Class | 19 | – | Not rated | 0 | 0 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Mercedes-Benz. How we calculate this →