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M57D25M57D25TU

M57D25, 2.5 litres (150-197 hp, 2000-2010 depending on application) engine: faults and reliability

BMW M57 (M57D25/M57D30) version

With caution

It shares the swirl flap risk of the rest of the M57 family in its automatic versions; a specialist workshop points to a final 197 hp revision as an exception, but for the earlier versions we have found no clear confirmation of whether or not they have them.[1]

Years
2000–2010
Power
150–197 hp
Faults that affect it
4
2 of high or critical severity
Cars that use it
3
in our database

4 sourcesHow we work

What changes in this version

The M57D25 replaced the M51-engined 525td/tds as BMW's entry-level diesel, with common-rail injection and an aluminium cylinder head on a cast-iron block. Opel also adopted it, in a gentler state of tune (150 hp) for the Omega B 2.5 DTI, compared with the 163 hp with which it started out in the BMW E39 525d.[2][3][4]

Engine codes of this version: M57D25, M57D25TU.

Faults of the M57D25 engine

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

  1. 1Critical severityFrequency: CommonIntakeBroken intake swirl flapsYes: most automatic M57 and M57TU engines (330d, 530d, 535d, 730d, X3 3.0d and so on) have six metal flaps in the intake manifold that can seize, come loose and wreck a cylinder. The E53 X5 3.0d and the manual gearboxes of the first 330d/530d are free of them, according to a specialist workshop.
  2. 2High severityFrequency: CommonLubricationCrankcase ventilation (PCV) valve failureThe valve that separates oil from the crankcase gases (PCV) degrades over time, especially after 120,000-150,000 km, and can cause oil consumption, bluish smoke and a rough idle and, if ignored, foul the turbo, the EGR or the particulate filter.Appears at around 120,000 km
  3. 3Medium severityFrequency: OccasionalCylinder head and blockCracked exhaust manifoldThe M57 exhaust manifold can crack, causing loss of power, an unstable idle and a smell of exhaust fumes in the cabin; the recommended repair is to replace it with a cast one.
  4. 4Medium severityFrequency: OccasionalOtherCrankshaft pulley vibration damper failureThe M57 crankshaft vibration damper (pulley) can fail with use, warning with abnormal noises and knocking at the front of the engine before it breaks completely.

Cars fitted with the M57D25 engine

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

BMW

Opel

Frequently asked questions

Is the M57D25 engine reliable?

Our verdict is “With caution”. It shares the swirl flap risk of the rest of the M57 family in its automatic versions; a specialist workshop points to a final 197 hp revision as an exception, but for the earlier versions we have found no clear confirmation of whether or not they have them.[1]

What faults does the M57D25 engine have?

The documented ones that affect this version, by importance: broken intake swirl flaps (critical severity), crankcase ventilation (PCV) valve failure (high severity), cracked exhaust manifold (medium severity) and crankshaft pulley vibration damper failure (medium severity).

Which cars use the M57D25 engine?

BMW Serie 5 E39 (1998–2004), BMW Serie 5 E60 (2003–2010) and Opel Omega B (2001–2003).[2][3][4]

Are you buying a car with the M57D25 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 M57 - Reparación EspecializadaDasercars · Technical documentation · consulted 27 September 2026 · in Spanish
  2. BMW M57Wikipedia (inglés) · Other source · consulted 27 September 2026
  3. BMW 5 Series (E39)Wikipedia (inglés) · Other source · consulted 27 September 2026
  4. Opel OmegaWikipedia (inglés) · Other source · consulted 27 September 2026