Mercedes SLK 2011 fuel consumption
Year-to-year deviations of actual owner-reported average fuel consumption from advertised values
| Year | Gasoline cars | Diesel cars | ||
|---|---|---|---|---|
| All carmakers | Mercedes SLK | All carmakers | Mercedes SLK | |
| 2011 | +19% | +34% | +19% | +23% |
| Show all years | ||||
| 2012 | +21% | +34% | +23% | +23% |
| 2013 | +23% | +34% | +27% | +23% |
| 2014 | +26% | +34% | +30% | +23% |
| 2015 | +27% | +34% | +33% | +23% |
See below for the actual consumption of generations and versions of Mercedes SLK.
Mercedes SLK 2011 fuel economy
| Average advertised fuel consumption for petrol engines | 34.4 MPG 6.8 l/100km |
| Average real-world fuel consumption for petrol engines | 27.2 MPG 8.7 l/100km |
| Average real gasoline consumption difference * | +34% |
| Average advertised fuel consumption for diesel engines | 47.0 MPG 5.0 l/100km |
| Average real-world fuel consumption for diesel engines | 38.2 MPG 6.2 l/100km |
| Average real diesel consumption difference * | +23% |
According to advertised fuel consumption, a Mercedes SLK 2011 with automatic transmission consumes on average 0.2 liters per 100 km or 3% less fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Mercedes SLK with automatic transmission consumes around 0.5 litres per 100 km or 7% more fuel than a version with the same engine but a manual gearbox.
Compared to similar cars of other manufacturers, the Mercedes SLK advertised fuel economy is among the best, beating more than 80% of other cars, but according to available user reports on actual consumption, real fuel economy is significantly above average.
The best real fuel economy in its class according to user reviews of all the modifications has modification with 2.1 diesel engine and manual transmission (MERCEDES BENZ SLK (R172) 250 CDI BlueEFICIENCY 204 HP). However, of all modifications the best advertised fuel economy in its class has Mercedes SLK with 1.8 petrol engine and automatic transmission (MERCEDES BENZ SLK (R172) 250 BlueEFFICIENCY 204 HP).
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 1.8 liter petrol engine | ||
| Mercedes SLK 1.8 200 2011 BlueEFFICIENCY 184 HP manual | 36.8 MPG 6.4 l/100km |
29.8 MPG 7.9 l/100km+23% |
| Mercedes SLK 1.8 200 2011 BlueEFFICIENCY Automatic 184 HP automatic | 38.6 MPG 6.1 l/100km |
27.4 MPG 8.6 l/100km+41% |
| MERCEDES BENZ SLK (R172) 250 BlueEFFICIENCY 204 HP automatic | 37.9 MPG 6.2 l/100km |
27.7 MPG 8.5 l/100km+37% |
| 2.1 liter diesel engine | ||
| MERCEDES BENZ SLK (R172) 250 CDI BlueEFICIENCY 204 HP manual | 47.0 MPG 5.0 l/100km |
39.2 MPG 6.0 l/100km+20% |
| MERCEDES BENZ SLK (R172) 250 CDI BlueEFICIENCY Automatic 204 HP automatic | 47.0 MPG 5.0 l/100km |
37.3 MPG 6.3 l/100km+26% |
| 3.5 liter petrol engine | ||
| MERCEDES BENZ SLK (R172) 350 BlueEFFICIENCY 306 HP automatic | 33.1 MPG 7.1 l/100km |
24.5 MPG 9.6 l/100km+35% |
| 5.5 liter petrol engine | ||
| Mercedes SLK 2012 5.5 AMG SLK 55 422 HP automatic | 28.0 MPG 8.4 l/100km |
|
* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.