The BMW F30 320d is known for strong fuel efficiency, with real-world fuel consumption typically ranging between 4.2–5.6 l/100km (approximately 45–67 mpg UK or 38–56 mpg US), highly dependent on driving conditions, style, and specific model year[1].[2][8]
On motorway journeys and with careful driving, many owners report averages from 60 to 72 mpg UK (about 4.0–4.7 l/100km), sometimes even higher in EfficientDynamics (ED) models or under ideal conditions[3].[4][6]
For mixed driving:
- Urban routes usually see lower figures, sometimes dropping to 34–43 mpg UK (about 6.6–8.2 l/100km), especially with frequent stop-start traffic or predominantly city use[2].[7]
- On longer, steady-speed trips, figures of 55–70 mpg UK (about 4.0–5.1 l/100km) are commonly cited, especially in models equipped with the 8-speed automatic transmission and ED tweaks[3].[1][6]
- Official (NEDC) combined fuel consumption for F30 320d models is quoted at 58.9–64.2 mpg UK, while real-world average is approximately 51 mpg UK (around 5.5 l/100km)[8].
Key factors affecting consumption include driving style, traffic conditions, tire choice, and whether the car is an EfficientDynamics version. Diagnostic readouts sometimes understate actual consumption, so brim-to-brim (manual) calculations tend to be more reliable[1].[6]
References
- [1] F30 320d fuel consumption – BMWFanatics
- [2] F30 320d Actual MPG – PistonHeads UK
- [3] BMW 320d ED Plus (2015) long-term review – Motoring Research
- [4] BMW 320d Real MPG – Review – YouTube
- [6] F30 320d Actual MPG – BMW 3-Series and 4-Series Forum (F30/F32)
- [7] 320d/330d MPG – G20 BMW 3-Series Forum – Bimmerpost
- [8] Real MPG: BMW 3 Series (2012 – 2019) 320d – Honest John