Specify a small engine or a diesel and drive carefully and you'll get plenty of MPG. Residuals are good and servicing is variable with use. Belt about in a big petrol unit and you'll guzzle juice and scoff tyres.
3-Series is quite a polluting model. With an average of 202 g/km CO2 across the model line-up, its emissions are a touch high for a medium-sized estate. However, it's worth noting that the line up has a high number of diesel models, bringing the average down and giving buyers more choices of low-emission versions. Diesels typically produce less CO2 than petrol engines with similar power outputs.
The range is not particularly economical, averaging 35 mpg.
Excellent reliability in the main - occasional niggles but unlikely to be anything that won't be quickly sorted by the dealer.
Estimated fuel cost per year
|Fuel type||Pence per litre||Estimated cost per year *|
|Unleaded||128p||£1,531 - £2,155 *|
|Diesel||131p||£1,241 - £1,752 *|
* The estimated fuel cost figure is based on an annual mileage of 10,000 miles and is a guide to how much this model will cost in fuel each year. It's calculated using the model's average MPG (calculated from both town centre and motorway driving) and the average fuel price from around the country. Actual fuel costs will vary based on driving style and road conditions.
Highest and lowest CO2 emissions
|Engine||CO2 emissions||Road tax (12 months)|
|156 g/km (Min)||£200 - £265|
|328i Petrol||247 g/km (Max)||£265|
Ongoing running costs
|Road tax (12 months)||
£200 - £325
See tax rates for all versions
25 - 35
How much is it to insure?
Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered before 01 March 2001 it is based on engine size. For cars registered on or after 01 March 2001 the VED or road tax is based on the car's CO2 emissions.