
BMW N47D20
The most famous problem of the motor in stretching the timing chain on runs up to 100,000 km.
The BMW 4-Series is a series of German prestigious compact cars from the manufacturer BMW AG. The release began in 2013. In 2014, the series was supplemented by the BMW M4 sports cars. Cars of the 4th series are produced in sedan, coupe and convertible body modifications. The car has a rear and front wheel drive layout. The 4-Series is based on the new generation of 3 Series cars – the BMW E90. The 4-Series is assembled in four trim levels – basic, luxury, Sport and M Sport at factories in Germany.
The BMW 4-Series was offered with 8 engines since 2013 (4 diesel, 4 petrol). Displacement ranges from 2.0 to 3.0 liters, power output from 116 to 400 hp. All of them use a timing chain. 7 are turbocharged. The longest rated lifespan belongs to the BMW B47 (C20/D20) (about 350,000 km).
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| BMW 4-Series F32 2013–present | |||||||
| BMW N55B30 | 2013–2016 | 3.0 L R6 | 306–370 hp | petrol, turbo | chain | 6.5 L | ~300,000 km |
| BMW N57D30 | 2013–present | 3.0 L R6 | 204–381 hp | diesel, turbo | chain | 6.5–7.2 L | ~300,000 km |
| BMW N47D20 | 2013–2016 | 2.0 L R4 | 116–218 hp | diesel, turbo | chain | 5.2 L | ~250,000 km |
| BMW N20B20 | 2014–2016 | 2.0 L R4 | 156 hp | petrol, turbo | chain | 5 L | ~220,000 km |
| BMW B58B30 | 2016–2021 | 3.0 L R6 | 326–388 hp | petrol, turbo | chain | ~300,000 km | |
| BMW B48B20 / B48A20 | 2016–2021 | 2.0 L R4 | 156–306 hp | petrol, turbo | chain | 5.25 L | ~250,000 km |
| BMW 4-Series G22 2020–present | |||||||
| BMW B57D30 | 3.0 L R6 | 265–400 hp | diesel, turbo | chain | ~350,000 km | ||
| BMW B58B30 | 2020–present | 3.0 L R6 | 326–388 hp | petrol, turbo | chain | ~300,000 km | |
| BMW B48B20 / B48A20 | 2020–present | 2.0 L R4 | 156–306 hp | petrol, turbo | chain | 5.25 L | ~250,000 km |
| Other BMW 4-Series engines generation not specified | |||||||
| BMW B47 (C20/D20) | 2014–present | 2.0 L R4 | 116–231 hp | diesel | chain | ~350,000 km | |
BMW 4-Series F32 (2013–present): BMW N55B30, BMW N57D30, BMW N47D20, BMW N20B20, BMW B58B30 and BMW B48B20 / B48A20; BMW 4-Series G22 (2020–present): BMW B57D30, BMW B58B30 and BMW B48B20 / B48A20.
By rated service life the most durable BMW 4-Series engines are: BMW B47 (C20/D20) — about 350,000 km; BMW B57D30 — about 350,000 km; BMW B58B30 — about 300,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.
Engine oil capacity with filter: BMW B48B20 / B48A20 — 5.25 L (0W-30, 0W-40, 5W-30, 5W-40); BMW N20B20 — 5 L (5W-30); BMW N47D20 — 5.2 L (5W-30); BMW N55B30 — 6.5 L (5W-30); BMW N57D30 — 6.5–7.2 L (5W-30).
Timing chain: BMW B47 (C20/D20), BMW B48B20 / B48A20, BMW B57D30, BMW B58B30, BMW N20B20, BMW N47D20, BMW N55B30 and BMW N57D30.
Yes: BMW B47 (C20/D20), BMW B57D30, BMW N47D20 and BMW N57D30.

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