Based on data from 18 vehicles, 1,034 fuel-ups and 259,491 miles of driving, the 1999 Mercedes-Benz SLK230 gets a combined Avg MPG of 23.65 with a 0.30 MPG margin of error.

Any Engine Type 2.3L L4 GAS (10) L4 GAS (8) Any Body Style Convertible (6) Any Submodel Kompressor (10) Other (8)

Below you can see a distribution of the fuel-ups with 39 outliers (3.63%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

• SLK

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Manual 5 Speed Convertible
  Added Jan 2024 • 30 Fuel-ups

  Property of JohnFQ

• 27.9 Avg MPG

• Black SLK

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Manual 5 Speed Convertible
  Added Dec 2019 • 155 Fuel-ups

  Property of pbk87

• 22.8 Avg MPG

• MB SLK

  1999 Mercedes-Benz SLK230 Kompressor 2,3L L4 GAS Manual Convertible
  Added Jun 2020 • 92 Fuel-ups

  Property of marko259

• 22.9 Avg MPG

• SLK 230

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Automatic 5 Speed
  Added Sep 2016 • 270 Fuel-ups

  Property of khhatchett

• 25.9 Avg MPG

• 1999 Mercedes-Benz SLK230

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Automatic 5 Speed
  Added Sep 2016 • 5 Fuel-ups

  Property of khhatchett

• 26.9 Avg MPG

• Gracie

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Convertible
  Added Aug 2023 • 36 Fuel-ups

  Property of Riccoman

• 35.0 Avg MPG

• Suzie

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Automatic 5 Speed Convertible
  Added Mar 2016 • 46 Fuel-ups

  Property of jscalow

• 16.9 Avg MPG

• My SLK230

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Automatic 5 Speed
  Added Apr 2020 • 19 Fuel-ups

  Property of chanson1983

• 25.4 Avg MPG

• Red Slk

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Automatic 5 Convertible (2 Door)
  Added Dec 2010 • 103 Fuel-ups

  Property of DucatiSteve

• 22.1 Avg MPG

• AJ

  1999 Mercedes-Benz SLK230 Kompressor 2.3L L4 GAS Standard 5 Speed Convertible
  Added May 2010 • 43 Fuel-ups

  Property of kdemas

• 24.3 Avg MPG

• Richards

  1999 Mercedes-Benz SLK230 GAS L4
  Added Aug 2013 • 9 Fuel-ups

  Property of kilna

• 20.9 Avg MPG

• SLK

  1999 Mercedes-Benz SLK230 GAS L4
  Added Nov 2012 • 25 Fuel-ups

  Property of refaller

• 24.3 Avg MPG

• Junior Junior "JJ"

  1999 Mercedes-Benz SLK230 GAS L4
  Added Jan 2012 • 42 Fuel-ups

  Property of JPBroad

• 22.5 Avg MPG

• Benz

  1999 Mercedes-Benz SLK230 GAS L4
  Added Jan 2013 • 15 Fuel-ups

  Property of patank

• 25.3 Avg MPG

• Slick

  1999 Mercedes-Benz SLK230 GAS L4
  Added Feb 2013 • 4 Fuel-ups

  Property of SLKCrazy

• 27.6 Avg MPG

• SLK

  1999 Mercedes-Benz SLK230 GAS L4
  Added Jan 2012 • 10 Fuel-ups

  Property of hb410

• 21.7 Avg MPG

• snoopy

  1999 Mercedes-Benz SLK230 GAS L4
  Added Aug 2008 • 51 Fuel-ups

  Property of pierrenut

• 25.5 Avg MPG

• 1999 SLK230 MT

  1999 Mercedes-Benz SLK230 GAS L4
  Added Nov 2011 • 148 Fuel-ups

  Property of DickW

• 26.7 Avg MPG