We compared BMW 1 Series engines, and the efficiency crown goes to…

By Farzana Chaumoo

We compare the engine stats between the petrol and diesel variants found in the BMW 1 Series.

 

More power, Less fuel

The BMW TwinPower Turbo engines offer the greatest possible dynamic performance with the greatest possible efficiency thanks to the newest injection systems, variable output control and sophisticated turbocharger technology. Whether diesel or petrol, and no matter how many cylinders, the engines from the BMW EfficientDynamics engine family allow markedly more agile power delivery and outstanding responsiveness even at low rpms, while being fuel efficient and low in emissions. 

Approximately 33% less CO2 emissions since 2000: BMW EfficientDynamics is a technology package that includes not only the drive, but rather the whole vehicle concept and intelligent energy management. Provided as standard in every BMW, a variety of innovative technologies contribute to continuously improving efficiency. Via engine efficiency measures, electrification, lightweight construction methods and optimised aerodynamics, BMW has managed to reduce the CO2 emissions of its fleet by 33%.

 

Petrol models

BMW 1 Series	116i	118i	120i	125i	M140i M140i xDrive
Engine
Type	BMW TwinPower Turbo 3-cylinder petrol engine	BMW TwinPower Turbo 3-cylinder petrol engine	BMW TwinPower Turbo 4-cylinder petrol engine	BMW TwinPower Turbo 4-cylinder petrol engine	M Performance TwinPower Turbo 6-cylinder petrol engine
Capacity	1499	1499	1998	1998	2998
Max output	80	100	135	165	250
Max torque (Nm/rpm)	180/1250–4250	220/1250–4300	290/1350–4250	310/1400–5000	500/1520–4500
Performance
Acceleration 0–100 km/h (seconds)	10.9	8.5 [8.7]	7.1	6.1	4.8 [4.6] xDrive: 4.4
Top speed	195	210	230	243	250
Fuel consumption
Urban (l)	6.3–6.8	6.2–6.7 [5.9–6.4]	7.6–8.1 [7.0–7.4]	7.2–7.4	10.6 [9.4] xDrive: 9.8
Extra-urban (l)	4.2–4.6	4.3–4.7 [4.2–4.6]	4.7–5.0	4.9–5.0	6.2 [5.8]
Combined (l)	5.0–5.4	5.0–5.4	5.7–6.1	5.7–5.9	7.8 [7.1]
CO2 emissions, combined (g/km)	116–126	116–126	131–140	131–134	179 [163]
Tank capacity (approx.) (litres)	52	52	52	52	52

 

Diesel models

Despite all these 1 Series models being in the local BMW brochures, the only diesel model available in South Africa is the 120d. Also, the best and most efficient engine from all listed here would've been the BMW TwinPower Turbo 1.5-litre, 3-cylinder, 4-valve engine powering the 114d and 116d, but since these aren't available here, the next most efficient engine is the BMW TwinPower Turbo 4-cylinder diesel engine.

 

BMW 1 Series	114d	116d	118d 118d xDrive	120d 120d xDrive	125d
Engine
Type	BMW TwinPower Turbo 3-cylinder diesel engine	BMW TwinPower Turbo 3-cylinder diesel engine	BMW TwinPower Turbo 4-cylinder diesel engine	BMW TwinPower Turbo 4-cylinder diesel engine	BMW TwinPower Turbo 4-cylinder diesel engine
Capacity	1496	1496	1995	1995	1995
Max output	70	85	110	140	165
Max torque (Nm/rpm)	235/1750–2250	270/1750–2250	320/1500–3000	400/1750–2500	450/1500–3000
Performance
Acceleration 0–100 km/h (seconds)	12.2	10.3	8.3 xDrive: 8.4	7.1 xDrive: 6.8	6.3
Top speed	185	200	212	228	240
Fuel consumption
Urban (l)	3.9–4.4	4.3–4.8 [4.1–4.6]	4.8–5.2 xDrive: 5.1–5.6	5.0–5.5 xDrive: 5.1–5.5	5.1–5.4
Extra-urban (l)	4.2–4.6	4.3–4.7 [4.2–4.6]	4.7–5.0 xDrive: 3.8–4.1	4.9–5.0 xDrive: 5.1–5.5	6.2 [5.8]
Combined (l)	5.0–5.4	5.0–5.4	5.7–6.1 xDrive: 4.3–4.7	5.7–5.9 xDrive: 4.3–4.7	7.8 [7.1]
CO2 emissions, combined (g/km)	116–126	116–126	131–140 xDrive: 113–123	131–134 xDrive: 113–124	179 [163]
Tank capacity (approx.) (litres)	52	52	52	52	52