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B57D30T0

B57D30 320 hp, twin turbo (B57D30T0, 2015-2020) engine: faults and reliability

BMW B57 (B57D30) version

With caution

This is the version for which a specialist garage places the 540d xDrive EGR cooler technical action in 2022; it is worth asking a dealer whether the car has had it done.[1]

Years
2015–2020
Power
320 hp
Faults that affect it
4
3 of high or critical severity
Cars that use it
4
in our database

7 sourcesHow we work

What changes in this version

A twin variable-geometry turbo version (235 kW, 680 Nm), available from late 2015 in the 740d, 540d, X3/X4 M40d and similar.[2][3][4]

Engine codes of this version: B57D30T0.

Faults of the B57D30T0 engine

The documented engine faults that affect this version and its years, from most to least important.

  1. 1Medium severityFrequency: OccasionalEmissions controlAdBlue/SCR system fault (NOx sensors, heater and pump)A specialist garage considers the B57's AdBlue/SCR system the fault that most often leaves cars immobilised: a NOx sensor, the quality sensor, the heater or the pump usually fails, and topping up the tank rarely stops the countdown of remaining starts.
  2. 2High severityFrequency: RareEmissions controlEGR cooler leaks on the B57 (limited action on the 540d xDrive)Unlike the N47 and N57, the B57 was left out of the big EGR campaigns of 2018 and 2021; a specialist garage cites only one action in 2022 for the 540d xDrive and another limited one in 2024. The fault exists but is uncommon.
  3. 3High severityFrequency: RareTimingTiming chain wear on the gearbox sideDasercars states that the B57 does not repeat the N47's premature chain wear, but that the chain is still on the gearbox side, so any work on it is expensive. A brief rattle when cold should be checked soon.
  4. 4High severityFrequency: RareTurboDegradation of the turbos on multi-turbo versionsOn the twin-turbo and four-turbo versions, a specialist garage considers oil in the intercooler or intake ducts the earliest warning of turbo degradation, before any fault codes appear.

Cars fitted with the B57D30T0 engine

Open each car to see all its faults with this engine and what to check before buying it.

BMW

Frequently asked questions

Is the B57D30T0 engine reliable?

Our verdict is “With caution”. This is the version for which a specialist garage places the 540d xDrive EGR cooler technical action in 2022; it is worth asking a dealer whether the car has had it done.[1]

What faults does the B57D30T0 engine have?

The documented ones that affect this version, by importance: adBlue/SCR system fault (NOx sensors, heater and pump) (medium severity), EGR cooler leaks on the B57 (limited action on the 540d xDrive) (high severity), timing chain wear on the gearbox side (high severity) and degradation of the turbos on multi-turbo versions (high severity).

Which cars use the B57D30T0 engine?

BMW Serie 5 G30 (2017–2023), BMW Serie 7 G11 (2015–2022), BMW X3 G01 (2017–2024) and BMW X4 G02 (2018–2024).[2][3][4][5][6][7]

Are you buying a car with the B57D30T0 engine?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.

Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. Motor BMW B57: fiabilidad y averíasDasercars · Motoring press · consulted 4 October 2026 · in Spanish
  2. BMW B57 (Wikipedia de)Wikipedia · Other source · consulted 4 October 2026 · in German
  3. BMW B57 (Wikipedia en)Wikipedia · Other source · consulted 4 October 2026
  4. BMW 5 Series (G30)Wikipedia · Other source · consulted 4 October 2026
  5. BMW 7 Series (G11)Wikipedia · Other source · consulted 4 October 2026
  6. BMW X3 (G01)Wikipedia · Other source · consulted 4 October 2026
  7. BMW X4 (G02)Wikipedia · Other source · consulted 4 October 2026