BMW B57 vs 2.2 i-CTDi: which engine is more reliable?

According to our risk index, the BMW B57 carries less risk than the 2.2 i-CTDi: 22/100 (low risk) versus 52/100 (high risk). The BMW B57 has 3 documented serious faults, the main one being «EGR cooler leaks on the B57 (limited action on the 540d xDrive)»; the 2.2 i-CTDi has 2 documented serious faults, the main one being «Turbocharger failure».

Risk index

BMW B57

Low risk · 3 serious faults

Lower risk

Risk index

2.2 i-CTDi

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

Reviewed on 4 October 202610 sources How we work

Is the BMW B57 reliable?

The BMW B57 (2015 onwards) is the six-cylinder diesel that succeeded the N57. The sources consulted document no widespread faults: its most cited weak point is the AdBlue/SCR system, and it was left out of the big EGR campaigns that hit the N47 and N57. The timing chain is still at the back, next to the gearbox.^[1][2]

See the 4 of the BMW B57 faults

Is the 2.2 i-CTDi reliable?

The 2.2 i-CTDi is the diesel Honda fitted to the Civic, Accord, CR-V and FR-V in Europe between 2003 and 2011, before the i-DTEC. It uses a timing chain and common-rail injection, an architecture that generally ages well. The best-documented faults are wear of the dual-mass flywheel and clutch, and cracks in the exhaust manifold; there are also cases involving the turbo, EGR and injectors.^[3][4][5][6]

See the 5 of the 2.2 i-CTDi faults

Side-by-side comparison

Comparison of BMW B57 and 2.2 i-CTDi
Item	BMW B57	2.2 i-CTDi
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,993 cm³	2,204 cm³
Timing	Chain	Chain
Power	265–400 hp	140 hp
Production	since 2015^[7][8]	2003–2011^[3][5][9]
Reliability
Risk index (what is it?)	22Low risk	52High risk
Documented faults	4	5
Of high or critical severity	3	2
Worst severity	High severity	High severity
Main faults	Medium severity: AdBlue/SCR system fault (NOx sensors, heater and pump) High severity: EGR cooler leaks on the B57 (limited action on the 540d xDrive) High severity: Timing chain wear on the gearbox side	High severity: Turbocharger failure Medium severity: Dual-mass flywheel and clutch wear High severity: Diesel injector failure or wear
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	B57D30 265 hp, single turbo (B57D30O0, 2015-2020)^[1] B57D30 286-340 hp, twin turbo with 48 V (B57D30O2/T2, 2020 onwards)^[1]	None
With cautionVersions to be cautious about	B57D30 320 hp, twin turbo (B57D30T0, 2015-2020)^[1] B57D30 400 hp, four turbos (B57D30S0, 2016-2020)^[1]	2.2 i-CTDi 140 (N22A1/N22A2, 2003-2011)^{[4][5][6][10]}
AvoidVersions to avoid	None	None

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 B57

See the 9 models with the BMW B57

2.2 i-CTDi

Other comparisons

With the BMW B57

With the 2.2 i-CTDi

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Sources

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

Motor BMW B57: fiabilidad y averíasDasercars · Motoring press · consulted 4 October 2026 · in Spanish
Motor BMW N57: diferencias con el B57Dasercars · Motoring press · consulted 4 October 2026 · in Spanish
Honda N engineWikipedia · Other source · consulted 27 September 2026
Fiabilité et pannes Honda Civic (2006-2011)Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
Avis et fiabilité Honda Accord (2003-2008)Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
Fiabilité et pannes Honda CR-V (2007-2013)Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
BMW B57 (Wikipedia en)Wikipedia · Other source · consulted 4 October 2026
BMW B57 (Wikipedia de)Wikipedia · Other source · consulted 4 October 2026 · in German
Honda Civic (eighth generation)Wikipedia · Other source · consulted 27 September 2026
Honda Civic 8 – Alle bekannten Probleme & KrankheitenGebrauchtwagenberater.de · Other source · consulted 27 September 2026 · in German