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BMW B58 vs 2.0 16v F4R and F4RT: which engine is more reliable?

According to our risk index, the 2.0 16v F4R and F4RT carries less risk than the BMW B58: 25/100 versus 38/100 (both moderate 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 16v F4R and F4RT has 1 documented serious fault, the main one being «Timing belt failure due to overdue maintenance».

Risk index

BMW B58

38

Moderate risk · 1 serious fault

Risk index

2.0 16v F4R and F4RT

25

Moderate risk · 1 serious fault

Lower risk

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

12 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 16v F4R and F4RT reliable?

In the sources we consulted, the 2.0-litre F4R and F4RT show no engine-destroying design faults, but the timing belt must be changed on time, and the coils (RS) and the variable valve timing pulley appear as weak points. We have found no reliable sources on oil consumption or big-end bearings.[5][6][7][8]

See the 3 of the 2.0 16v F4R and F4RT faults

Side-by-side comparison

Comparison of BMW B58 and 2.0 16v F4R and F4RT
BMW B582.0 16v F4R and F4RT
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement2,998 cm³1,998 cm³
TimingChainTiming belt (dry)
Power290–441 hp135–250 hp
Productionsince 2015[9][10]since 2000[11]
Reliability
Risk index (what is it?)38Moderate risk25Moderate risk
Documented faults63
Of high or critical severity11
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: Timing belt failure due to overdue maintenance
  2. Medium severity: Faulty camshaft variable valve timing pulley
  3. Medium severity: F4RT ignition coil failure
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • B58TU2 381 hp (B58B30M2, since 2022)[2][3]
None
With cautionVersions to be cautious about
  • B58 326 hp (B58B30M0, 2015-2019)[2][3][12]
  • B58 340-360 hp (B58B30M0, 2016-2019)[2][3][12]
  • B58TU 333-340 hp (B58B30M1, since 2018)[2][3]
  • B58TU 374 hp (B58B30O1, M340i, M440i and M240i, since 2019)[3]
  • 2.0 16v naturally aspirated 135-197 hp (F4R)[5][6]
  • 2.0 turbo 165-250 hp (F4RT)[7][8]
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 16v F4R and F4RT

Other comparisons

With the BMW B58

With the 2.0 16v F4R and F4RT

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. Pannes Renault Mégane 2 (testimonios por motorización)fiches-auto.fr · Other source · consulted 5 October 2026 · in French
  6. Fiabilité occasion Renault Mégane II (2002-2009)CarVerif · Other source · consulted 5 October 2026 · in French
  7. Renaultsport Megane checkpointsevo · Motoring press · published 20 November 2008 · consulted 5 October 2026
  8. RenaultSport Megane 225 buying guide, history and reviewOctane · Motoring press · published 7 February 2025 · consulted 5 October 2026
  9. BMW B58Wikipedia (inglés) · Other source · consulted 9 October 2026
  10. BMW B58Wikipedia (alemán) · Other source · consulted 9 October 2026 · in German
  11. Moteur F Renault (F4R y F4RT)Wikipedia (fr) · Other source · consulted 5 October 2026 · in French
  12. 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