Which BMW 1 Series is better: diesel or petrol?
Although BMW offers customers a choice of ten 1 Series derivatives. The range is serviced by four engine configurations, three of which are petrol and one diesel. We compare the engines to find out which is better.
The latest iteration of the BMW 1 Series touched down. Initially available in 118i and M135i xDrive guise, the Bavarian automaker added a 118d derivative to the range at a later stage. Each of these model derivatives offers customers a different engine configuration including a diesel motor.
While the BMW M135i xDrive will most likely appeal more to performance-oriented customers, the 118i and 118d guises are the focus of this article as they compete for similar clientele. The latter two variants should make more sense when considering a compact hatchback for a daily commuter.
As mentioned, we are focussing on the 118i and 118d variants, however, we are including the 128ti and M135i xDrive derivatives into this comparison to see how the diesel stacks up against all the petrol engines in the model range.
|BMW 118i||BMW 118d||BMW 128ti||BMW M135i xDrive|
|Engine||1.5-litre, turbocharged, petrol||2.0-litre, turbocharged, diesel||2.0-litre, turbocharged, petrol||2.0-litre, turbocharged, petrol|
|Transmission||7-speed, dual-clutch automatic||8-speed automatic||8-speed automatic||8-speed automatic|
|Power||103 kW||110 kW||180 kW||225 kW|
|Torque||220 Nm||350 Nm||380 Nm||450 Nm|
|Top speed||213 km/h||214 km/h||243 km/h||250 km/h|
|Fuel consumption||5.9 L / 100 km||4.7 L / 100 km||6.8 L / 100 km||7.5 L / 100 km|
|CO2 emission||135 g / km||126 g / km||156 g / km||171 g / km|
The BMW M135i xDrive and 128ti showcase a distinct difference in power and ultimately performance. Furthermore, included in the price premium are a host of trim upgrades on the exterior as well as the interior. The BMW 118i and 118d on the other hand are both very much aimed at the daily commuter more concerned with comfort and frugality.