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BMW B58 vs 2.0 and 2.5 Hybrid: which engine is more reliable?

According to our risk index, the BMW B58 carries less risk than the 2.0 and 2.5 Hybrid: 38/100 (moderate risk) versus 57/100 (high risk). The BMW B58 has 1 documented serious fault, the main one being «Failure of the oil pump with a plastic rotor housing»; the 2.0 and 2.5 Hybrid has 2 documented serious faults, the main one being «Low-pressure fuel pump failure: loss of power and fire risk».

Risk index

BMW B58

38

Moderate risk · 1 serious fault

Lower risk

Risk index

2.0 and 2.5 Hybrid

57

High risk · 2 serious faults

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

14 sourcesHow we work

Is the BMW B58 reliable?

The B58 (3.0 turbo straight-six, since 2015) is considered robust and less troublesome than the N54/N55 it replaced, and the sources do not document widespread internal failures. The known faults are on the periphery: the plastic oil filter housing, crankcase ventilation, gaskets and coolant. On units built before 2021 there are also US reports of an oil pump with a plastic housing.[1][2][3][4]

See the 6 of the BMW B58 faults

Is the 2.0 and 2.5 Hybrid reliable?

Overall, yes: the M20A-FXS (2.0) and A25A-FXS (2.5) are naturally aspirated, non-turbo engines and carry no known oil consumption or timing problems. Their documented weak point is not in the engine block but in parts that Toyota shares with a large part of its range: the low-pressure fuel pump, with campaigns in the US and the European Union, and the 12 V battery, which discharges easily if the car sits unused for several days.[5][6][7]

See the 3 of the 2.0 and 2.5 Hybrid faults

Side-by-side comparison

Comparison of BMW B58 and 2.0 and 2.5 Hybrid
BMW B582.0 and 2.5 Hybrid
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement2,998 cm³—
TimingChainChain
Power290–441 hp143–186 hp
Productionsince 2015[8][9]since 2017[10][11]
Reliability
Risk index (what is it?)38Moderate risk57High risk
Documented faults63
Of high or critical severity12
Worst severityHigh severityCritical severity
Main faults
  1. High severity: Failure of the oil pump with a plastic rotor housing
  2. Medium severity: Oil and coolant leak from the plastic oil filter housing
  3. Medium severity: Failure of the crankcase ventilation PCV valve (integrated in the valve cover)
  1. Critical severity: Low-pressure fuel pump failure: loss of power and fire risk
  2. Medium severity: The 12 V battery goes flat if the car sits unused for several days
  3. Critical severity: Loosely tightened inverter bolt on the latest Camry Hybrid (US): fire risk
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • B58TU2 381 hp (B58B30M2, since 2022)[2][3]
  • 2.5 Hybrid NX 350h (A25A-FXS + Lexus hybrid with E-Four all-wheel drive, 242-243 hp combined, from 2021)[12]
With cautionVersions to be cautious about
  • B58 326 hp (B58B30M0, 2015-2019)[2][3][13]
  • B58 340-360 hp (B58B30M0, 2016-2019)[2][3][13]
  • B58TU 333-340 hp (B58B30M1, since 2018)[2][3]
  • B58TU 374 hp (B58B30O1, M340i, M440i and M240i, since 2019)[3]
  • 2.0 Hybrid 197h (M20A-FXS + hybrid, 184-197 hp combined, from 2019)[5][6]
  • 2.0 Hybrid UX 250h (M20A-FXS + Lexus hybrid, 179 hp combined, from 2018)[14]
  • 2.5 Hybrid 218h (A25A-FXS + hybrid, 218-222 hp combined, from 2018)[7]
AvoidVersions to avoidNoneNone

Severity of each fault: green, low; amber, medium; red, high; dark red, critical. How we rate them

Cars that each one is fitted to

BMW B58

See the 15 models with the BMW B58

2.0 and 2.5 Hybrid

See the 8 models with the 2.0 and 2.5 Hybrid

Other comparisons

With the BMW B58

With the 2.0 and 2.5 Hybrid

Compare other engines

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Sources

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

  1. The 5 Most Common BMW B58 Engine ProblemsBMW Tuning · Technical documentation · published 7 February 2020 · consulted 9 October 2026
  2. BMW B58 EngineFCP Euro · Technical documentation · consulted 9 October 2026
  3. The Popular BMW B58 Inline-Six Engine Has One Big Achilles HeelThe Autopian · Motoring press · published 14 June 2024 · consulted 9 October 2026
  4. ¿En qué se diferencian los motores B58 y S58 de BMW?Diariomotor · Motoring press · published 27 April 2024 · consulted 9 October 2026 · in Spanish
  5. Toyota Corolla : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Toyota C-HR : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. This $0.50 Part Forced Toyota To Recall 3.3 Million CarsCarBuzz · Motoring press · published 1 September 2026 · consulted 27 September 2026
  8. BMW B58Wikipedia (inglés) · Other source · consulted 9 October 2026
  9. BMW B58Wikipedia (alemán) · Other source · consulted 9 October 2026 · in German
  10. Toyota Dynamic Force engineWikipedia · Other source · consulted 27 September 2026
  11. Toyota Camry (XV70)Wikipedia · Other source · consulted 27 September 2026
  12. Lexus NXWikipedia · Other source · consulted 27 September 2026
  13. How A Plastic Part On BMW's B58 Engine Can Turn An Oil Change Into A $3,000 RepairThe Autopian · Motoring press · published 28 March 2025 · consulted 9 October 2026
  14. Lexus UXWikipedia · Other source · consulted 27 September 2026