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 2022. 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.
Average difference between user reported and stated consumption
All carmakers average fuel economy difference between advertised and user reported
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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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: +41% Average real diesel consumption difference: +60%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real consumption |
|---|---|---|---|
| 3.0BMW 640i Coupe 320 HP AT | Petrol | 7.4 l/100km | 9.6 l/100km+30% |
| 3.0BMW 640i xDrive Coupe 320 HP AT 4x4 | Petrol | 7.9 l/100km | 10.3 l/100km+30% |
| 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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: +37%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Claimed consumption | Real 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 | 12.6 l/100km+42% |
| 4.4BMW 650i xDrive Cabrio 450 HP AT 4x4 | 9.3 l/100km | 13.1 l/100km+41% |
2012
BMW 6 series 2012 Gran Coupe coupe
Average real petrol consumption difference: +38% Average real diesel consumption difference: +45%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Fuel | Claimed consumption | Real 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Claimed consumption | Real 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 | 13.4 l/100km+12% |
2004
BMW 6 series 2004 coupe
Average real petrol consumption difference: +14%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Claimed consumption | Real 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Claimed consumption | Real 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 | 11.9 l/100km+19% |
| 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%
Real and specified fuel consumption and differences for specific BMW 6 series versions are shown in the table below.
| Modification | Claimed consumption | Real 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 |
Real fuel consumption of other carmakers
The fuel consumption reported by users does not reflect the experience of all users, may be selective (depending on the driving conditions, driving style, technical condition of the car and other circumstances) and should therefore not be taken as a representative indicator.