High-intent buyer researchBMW

BMW B47 Engine Problems

The B47 is generally stronger than the N47, but EGR/DPF health, boost control, cooling condition, and service intervals still decide buyer risk.

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Common problems

  • EGR cooler problems and recall/campaign history.
  • DPF loading or frequent regeneration from short trips.
  • Boost leaks, actuator issues, or sensor-related limp mode.
  • Oil leaks and cooling-system residue as mileage rises.

Symptoms to take seriously

  • Limp mode, reduced power, smoke, or boost-pressure codes.
  • Coolant loss, EGR odor, or evidence of emissions-system work.
  • Rough idle, hesitation, or repeated DPF warnings.
  • Missing oil-change invoices or long intervals.

Checks before buying

Check BMW campaign/recall history for the EGR cooler.
Scan DPF soot/load, EGR command, boost pressure, and sensor data.
Inspect coolant level, EGR area, turbo hoses, and oil leak points.
Prefer cars with consistent oil service and regular longer drives.

Related research

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BMW TTTOKEN1FIN

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P0299 fault code

Fault code

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P0234 fault code

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P0401 fault code

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P2002 fault code

Fault code

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P2458 fault code

Fault code

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P0128 fault code

Fault code

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BMW N47 vs B47

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BMW B47 vs B48

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Liste de contrôle pour les voitures d'occasion

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Aide à l'acheteur

Request a used-car risk review

Envoyez-nous le modèle, l'année, le moteur et le kilométrage. Nous vous aiderons à identifier les principaux risques avant d’acheter.

Points faibles connus du moteur et de la boîte de vitesses.
Codes d'erreur et symptômes à vérifier.
Questions d'inspection avant négociation.

Il s’agit d’un guide pour l’acheteur, et non d’une inspection mécanique à distance ou d’une garantie. Vérifiez toujours la voiture en personne avec les diagnostics et les dossiers d'entretien.