The third-generation BMW 1 Series (code name F40) marks a historic turning point for the Bavarian manufacturer: the abandonment of rear-wheel drive and longitudinal engines in favor of the FAAR front-wheel drive platform (shared with Mini and the X1). This change in architecture allowed for optimized interior space and boot volume, thus correcting the main flaw of the previous generation (F20). Although purists regretted the disappearance of the inline 6-cylinder engine, the F40 established itself as a remarkably well-rounded, well-finished, and technologically up-to-date premium compact (iDrive 7.0). In terms of reliability, the diesel engines (B37 and B47 family) that particularly interest us here have reached excellent maturity, erasing the old demons of timing chain issues from the for
The BMW 1 Series F40 is an excellent used car choice, especially with a diesel engine. While the switch to front-wheel drive disappointed purists, it allowed for the creation of a more spacious, safer car in the rain, and just as precise. The 2.0L diesel engine (B47) powering the 118d and 120d is a true masterpiece of reliability and efficiency, capable of racking up kilometers without a hitch, provided maintenance is respected and the notorious EGR cooler is monitored. Avoid diesels if you only drive in the city (then opt for a 118i). In summary: a very solid premium compact, with particularly well-controlled running costs for diesel versions.
| Oil change | £100 – 180 |
| Timing chain | £1 300 – 2 200 |
| Clutch | £1 100 – 1 800 |
| Complete brakes | £300 – 600 |
| Estimated annual budget | £650 – 1 200 |
Indicative estimates (independent garage, UK market). Prices vary by region and year.