Real BMW 6 series fuel consumption

BMW 6 series real fuel consumption by user reviews is approximately 34% higher compared to official consumption. For petrol engines real consumption is in average 25% higher, but for diesel engines is approximately 44% higher. Above consumption difference is the average for all BMW 6 series produced from 1976 to 2021. For BMW 6 series produced up to 1999 the difference in real fuel consumption by user reviews is on average +13%, while for those produced after 1999 it is on average +29%.

See below for the actual consumption of each generation and version.
2017 BMW 6 series 2017 hatchback Average real petrol consumption difference: +36% Average real diesel consumption difference: +41%
ModificationFuelClaimed consumptionReal consumption
2.0BMW 630i 249 HP AT Petrol 7.0 l/100km
2.0BMW 630i 258 HP AT Petrol 6.2 l/100km 8.9 l/100km+44%
2.0BMW 620d AT Diesel
3.0BMW 640i 340 HP AT Petrol 7.0 l/100km 10.1 l/100km+44%
3.0BMW 640i xDrive 340 HP AT 4x4 Petrol 8.5 l/100km 10.1 l/100km+19%
3.0BMW 630d xDrive 249 HP AT 4x4 Diesel 5.7 l/100km
3.0BMW 630d 265 HP AT Diesel 4.9 l/100km 7.5 l/100km+53%
3.0BMW 630d xDrive 265 HP AT 4x4 Diesel 5.5 l/100km 7.5 l/100km+36%
3.0BMW 640d xDrive 320 HP AT 4x4 Diesel 5.8 l/100km 7.8 l/100km+34%
2015 BMW 6 series 2015 coupe Average real petrol consumption difference: +45% Average real diesel consumption difference: +60%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 640i Coupe 320 HP AT Petrol 7.4 l/100km 10.2 l/100km+38%
3.0BMW 640i xDrive Coupe 320 HP AT 4x4 Petrol 7.9 l/100km 10.9 l/100km+38%
3.0BMW 640d Coupe 313 HP AT Diesel 5.2 l/100km 8.3 l/100km+60%
3.0BMW 640d xDrive Coupe 313 HP AT 4x4 Diesel 5.5 l/100km 8.8 l/100km+60%
4.4BMW 650i Coupe 450 HP AT Petrol 8.6 l/100km 13.4 l/100km+56%
4.4BMW 650i xDrive Coupe 450 HP AT 4x4 Petrol 9.1 l/100km 13.4 l/100km+47%
4.4BMW M6 Coupe 560 HP AT Petrol 9.9 l/100km
2015 BMW 6 series 2015 Gran Coupe coupe Average real petrol consumption difference: +43% Average real diesel consumption difference: +58%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 640i Gran Coupe 320 HP AT Petrol 7.5 l/100km 10.4 l/100km+39%
3.0BMW 640i xDrive Gran Coupe 320 HP AT 4x4 Petrol 7.9 l/100km 10.4 l/100km+32%
3.0BMW 640d Gran Coupe 313 HP AT Diesel 5.4 l/100km 8.7 l/100km+61%
3.0BMW 640d xDrive Gran Coupe 313 HP AT 4x4 Diesel 5.6 l/100km 8.7 l/100km+55%
4.4BMW 650i Gran Coupe 450 HP AT Petrol 8.6 l/100km 13.4 l/100km+56%
4.4BMW 650i xDrive Gran Coupe 450 HP AT 4x4 Petrol 9.2 l/100km 13.4 l/100km+46%
4.4BMW M6 Gran Coupe 560 HP AT Petrol 9.9 l/100km
2015 BMW 6 series 2015 cabrio Average real petrol consumption difference: +40%
ModificationClaimed consumptionReal consumption
3.0BMW 640i Cabrio 320 HP AT 7.6 l/100km 10.4 l/100km+37%
3.0BMW 640i xDrive Cabrio 320 HP AT 4x4 8.0 l/100km 10.4 l/100km+30%
3.0BMW 640d 313 HP AT 4x4 8.7 l/100km
3.0BMW 640d 313 HP AT 8.7 l/100km
4.4BMW 650i Cabrio 450 HP AT 8.9 l/100km 13.1 l/100km+47%
4.4BMW 650i xDrive Cabrio 450 HP AT 4x4 9.3 l/100km 13.6 l/100km+46%
2012 BMW 6 series 2012 Gran Coupe coupe Average real petrol consumption difference: +38% Average real diesel consumption difference: +45%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 640i Gran Coupe 320 HP AT 4x4 Petrol 8.1 l/100km 9.8 l/100km+21%
3.0BMW 640i 320 HP AT Petrol 9.8 l/100km
3.0BMW 640d Gran Coupe 313 HP AT Diesel 5.5 l/100km 8.0 l/100km+45%
3.0BMW 640d 313 HP AT 4x4 Diesel 8.3 l/100km
4.4BMW 650i Gran Coupe 450 HP AT Petrol 8.6 l/100km 13.1 l/100km+52%
4.4BMW 650i Gran Coupe xDrive 450 HP AT 4x4 Petrol 9.4 l/100km 13.1 l/100km+39%
2011 BMW 6 series 2011 coupe Average real petrol consumption difference: +22% Average real diesel consumption difference: +52%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 640i xDrive Coupe 320 HP AT 4x4 Petrol 8.1 l/100km 9.6 l/100km+19%
3.0BMW 640i 320 HP AT Petrol 9.6 l/100km
3.0BMW 640d xDrive Coupe 313 HP AT 4x4 Diesel 5.8 l/100km 8.0 l/100km+38%
3.0BMW 640d 313 HP AT Diesel 4.8 l/100km 8.0 l/100km+67%
4.4BMW 650i xDrive Coupe 408 HP AT 4x4 Petrol 11.3 l/100km 14.1 l/100km+25%
4.4BMW 650i 408 HP AT Petrol 7.7 l/100km
4.4BMW 650i 450 HP AT 4x4 Petrol 13.1 l/100km
4.4BMW 650i 450 HP AT Petrol 13.1 l/100km
2011 BMW 6 series 2011 cabrio Average real petrol consumption difference: +24% Average real diesel consumption difference: +43%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 640i Cabrio 320 HP AT Petrol 7.9 l/100km 9.4 l/100km+19%
3.0BMW 640i xDrive Cabrio 320 HP AT 4x4 Petrol 8.2 l/100km 9.8 l/100km+20%
3.0BMW 640d 313 HP AT Diesel 5.6 l/100km 8.0 l/100km+43%
3.0BMW 640d 313 HP AT 4x4 Diesel 8.0 l/100km
4.4BMW 650i Cabrio 408 HP AT Petrol 10.6 l/100km 14.1 l/100km+33%
4.4BMW 650i xDrive Cabrio 408 HP AT 4x4 Petrol 11.5 l/100km 14.1 l/100km+23%
4.4BMW 650i 450 HP AT 4x4 Petrol 13.1 l/100km
4.4BMW 650i 450 HP AT Petrol 13.1 l/100km
2007 BMW 6 series 2007 coupe Average real petrol consumption difference: +23% Average real diesel consumption difference: +28%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 630i MT Petrol 7.9 l/100km
3.0BMW 630i AT Petrol 7.7 l/100km
3.0BMW 635d AT Diesel 6.9 l/100km 8.8 l/100km+28%
4.8BMW 650i MT Petrol 11.7 l/100km
4.8BMW 650i AT Petrol 10.5 l/100km 12.9 l/100km+23%
2007 BMW 6 series 2007 cabrio Average real petrol consumption difference: +10% Average real diesel consumption difference: +22%
ModificationFuelClaimed consumptionReal consumption
3.0BMW 630i Cabrio MT Petrol 9.6 l/100km
3.0BMW 630i Cabrio AT Petrol 9.9 l/100km
3.0BMW 635d Cabrio AT Diesel 7.2 l/100km 8.8 l/100km+22%
4.8BMW 650i Cabrio MT Petrol 12.9 l/100km
4.8BMW 650i Cabrio AT Petrol 11.7 l/100km 12.9 l/100km+10%
2004 BMW 6 series 2004 cabrio Average real petrol consumption difference: +7%
ModificationClaimed consumptionReal consumption
3.0BMW 630i Cabrio MT 9.6 l/100km 10.6 l/100km+10%
3.0BMW 630i Cabrio AT 9.9 l/100km 11.1 l/100km+12%
4.4BMW 645Ci Cabrio MT 13.0 l/100km 13.4 l/100km+3%
4.4BMW 645Ci Cabrio AT 12.0 l/100km 12.7 l/100km+6%
4.8BMW 650i Cabrio MT 13.0 l/100km
4.8BMW 650i Cabrio AT 12.0 l/100km 13.3 l/100km+11%
2004 BMW 6 series 2004 coupe Average real petrol consumption difference: +14%
ModificationClaimed consumptionReal consumption
3.0BMW 630i MT 9.0 l/100km 10.6 l/100km+18%
3.0BMW 630i AT 9.5 l/100km 11.1 l/100km+17%
4.4BMW 645Ci MT 12.0 l/100km 12.2 l/100km+2%
4.4BMW 645Ci AT 11.0 l/100km 12.7 l/100km+15%
4.8BMW 650i MT 12.0 l/100km
4.8BMW 650i AT 11.0 l/100km 13.2 l/100km+20%
1982 BMW 6 series 1982 coupe Average real petrol consumption difference: +16%
ModificationClaimed consumptionReal consumption
2.8BMW 628 CSi MT 10.0 l/100km 12.0 l/100km+20%
2.8BMW 628 CSi AT 10.0 l/100km 11.0 l/100km+10%
3.4BMW 635 CSi 211 HP MT 12.0 l/100km
3.4BMW 635 CSi 211 HP AT 12.0 l/100km 13.1 l/100km+9%
3.4BMW 635 CSi 218 HP MT 10.0 l/100km 12.2 l/100km+22%
3.4BMW 635 CSi 218 HP AT 10.0 l/100km 11.8 l/100km+18%
3.5BMW M 635 CSi MT 11.3 l/100km 12.9 l/100km+14%
1976 BMW 6 series 1976 coupe Average real petrol consumption difference: +8%
ModificationClaimed consumptionReal consumption
2.8BMW 628 CSi MT 12.0 l/100km
2.8BMW 628 CSi AT 12.0 l/100km
3.0BMW 630 CS MT 11.4 l/100km
3.0BMW 630 CS AT 12.4 l/100km
3.2BMW 633 CSi MT 12.0 l/100km
3.2BMW 633 CSi AT 12.0 l/100km
3.5BMW 635 CSi MT 13.0 l/100km 14.1 l/100km+8%
3.5BMW 635 CSi AT 12.0 l/100km

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