BMW 1 Series F20

The 1 Series in brief

Generations are designated by codes: E87 (along with its coupe and convertible derivatives), F20/F21 (5-door and 3-door), F40, and the F70 produced from 2024. The first two generations stood out because, unlike most cars in this class, they featured rear-wheel drive.

The 1 Series is praised for its high-quality interior, precise steering and efficient engines. It's a great way to get into a BMW on a budget, though you have to factor in that the rear seat and boot — especially in the F20 generation — are smaller than those of many rivals.

F20 vs F40 — what's the difference

The F20 (2011–2019) is the most popular generation on the Lithuanian used market. Rear-wheel drive and a longitudinally mounted engine give it a driving feel that's rare in this class, while the six-cylinder M135i and M140i rank among the fastest hatchbacks in their segment. The 2015 facelift updated the headlights and introduced a new generation of engines.

The F40 (2019–2024) switched to front-wheel drive (with top versions featuring xDrive all-wheel drive). As a result, there is more cabin and rear-seat space, the boot is larger, and the interior is more modern, featuring a digital instrument cluster and larger displays. Its driving dynamics have become more comparable to other cars in its class.

When choosing between them, it's worth deciding what matters more: the F20 for driving pleasure and affordability, or the F40 for space, modern tech and newer model years.

Engines and gearboxes

The F20 generation is most commonly found with the 116d, 118d and 120d diesels, and the 116i, 118i and 120i petrols. Following the 2015 facelift, the 116i and 118i received 1.5-litre three-cylinder engines. The sportiest models are the M135i (around 320 hp) and M140i (around 340 hp) with a 3.0-litre six-cylinder engine.

The F40 lineup is anchored by the 118i (1.5-litre, three-cylinder), the 116d, 118d and 120d diesels, the sporty 128ti (front-wheel drive) and the M135i xDrive with a 2.0-litre four-cylinder engine (around 300 hp).

F20 models typically feature either a ZF 8-speed automatic or a 6-speed manual gearbox. The F40 generation uses a 7-speed dual-clutch or an 8-speed automatic transmission, depending on the engine.

What to check when buying a used 1 Series

On early F20 diesels (N47, up to around 2015), the timing chain is located at the back of the engine and can stretch — upon cold startup, there should be no rattling or whining noises. Ask whether the chain has already been replaced and if factory recall campaigns have been carried out.

BMW models are prone to oil leaks from the valve cover and oil filter housing gaskets. On diesels that have seen heavy urban use, check the particulate filter (DPF) and the EGR system.

Many 1 Series cars run on run-flat tyres — check their condition as well as the suspension. M135i and M140i models are frequently modified or driven hard, making service history and a thorough mechanical inspection especially crucial.

Trim levels (equipment lines)

BMW trim levels are known as lines; their names and equipment packages vary depending on the market and model year.

Comparison of F40 lines

For most buyers, the sweet spot is the 118i or 118d with the Sport Line or M Sport package. If driving dynamics are your top priority, it's worth seeking out a rear-wheel-drive F20 generation.

Frequently asked questions