BMW N57 vs 2.5 / 3.0 D-4D (KD): which engine is more reliable?

According to our risk index, the 2.5 / 3.0 D-4D (KD) carries less risk than the BMW N57: 63/100 (high risk) versus 87/100 (very high risk). The BMW N57 has 3 documented serious faults, the main one being «EGR cooler leaks with risk of engine fire»; the 2.5 / 3.0 D-4D (KD) has 3 documented serious faults, the main one being «Cracked pistons in the 3.0 D-4D (1KD-FTV)».

Risk index

BMW N57

Very high risk · 3 serious faults

Risk index

2.5 / 3.0 D-4D (KD)

High risk · 3 serious faults

Lower risk

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

Reviewed on 2 November 202617 sources How we work

Is the BMW N57 reliable?

The BMW N57 (2008-2019, successor to the M57) is a six-cylinder diesel that is mechanically robust in the basics, but it shares with the N47 and B47 the EGR cooler covered by BMW's service campaign for engine fire risk, and it inherits from the N47 the timing chain at the rear of the block, with wear cases documented mainly from 200,000 km. Without a clear history of these checks, it is worth buying with some caution.^[1][2][3]

See the 4 of the BMW N57 faults

Is the 2.5 / 3.0 D-4D (KD) reliable?

Toyota's KD diesels (2.5 D-4D, 2KD-FTV, and 3.0 D-4D, 1KD-FTV) have their best-documented weak points in the injectors: the copper seats of the 2004-2007 units, which can block the oil pickup, and the Denso injectors of the 3.0. The 3.0 of the Euro 4 era also has a record of cracked pistons; for the 2.5 we have only found the injector seal problem.^{[4][5][6][7][8]}

See the 5 of the 2.5 / 3.0 D-4D (KD) faults

Side-by-side comparison

Comparison of BMW N57 and 2.5 / 3.0 D-4D (KD)
Item	BMW N57	2.5 / 3.0 D-4D (KD)
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,993 cm³	—
Timing	Chain	Timing belt (dry)
Power	204–381 hp	102–190 hp
Production	2008–2019^[1][9]	since 2000^{[4][10][11][12][13]}
Reliability
Risk index (what is it?)	87Very high risk	63High risk
Documented faults	4	5
Of high or critical severity	3	3
Worst severity	Critical severity	Critical severity
Main faults	Critical severity: EGR cooler leaks with risk of engine fire Critical severity: Rear timing chain wear High severity: Loss of thrust on twin-turbo versions due to the vacuum circuit or the actuator	Critical severity: Cracked pistons in the 3.0 D-4D (1KD-FTV) Critical severity: Leaking copper injector seats and blocked oil pickup High severity: Denso injector failure in the 3.0 D-4D (blockage and wear)
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	N57D30 204-211 hp, single turbo (U0/UL, 2010-2013)^[3][14] N57D30 245-258 hp, single turbo (O0/O1, 2008-2019)^[3][14] N57D30 299-313 hp twin turbo (T0/T1, 2009-2019)^[14][15]	2.5 D-4D 102-120 hp (2KD-FTV, 2005-2011)^[6] 2.5 D-4D 144 hp (2KD-FTV, 2011-2016)^[6][16] 3.0 D-4D 163-166 hp (1KD-FTV, Land Cruiser J120, 2003-2006)^[4][17] 3.0 D-4D 173 hp (1KD-FTV, Euro 4, Land Cruiser J120, 2006-2009)^[4][6][8] 3.0 D-4D 171 hp (1KD-FTV, Hilux, 2005-2016)^[5][16] 3.0 D-4D 190 hp (1KD-FTV, Euro 5, Land Cruiser J150, 2010-2015)^[7][8]
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 N57

See the 10 models with the BMW N57

2.5 / 3.0 D-4D (KD)

Other comparisons

With the BMW N57

With the 2.5 / 3.0 D-4D (KD)

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Sources

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

BMW N57Wikipedia (inglés) · Other source · consulted 27 September 2026
Motor BMW B47 - Reparación EspecializadaDasercars · Technical documentation · consulted 27 September 2026 · in Spanish
324.000 diésel de BMW tendrán que pasar por el taller en Europa, por un posible riesgo de incendio en la EGRDiariomotor · Motoring press · published 8 August 2018 · consulted 27 September 2026 · in Spanish
Toyota 1KD-FTV 3.0 D-4D: ficha del motor, puntos débiles y fiabilidadMotorReviewer · Technical documentation · consulted 2 November 2026
D4D Toyota HiLux common problems and solutionsUnsealed 4x4 · Motoring press · consulted 2 November 2026
Toyota Hilux (2005 - 2012) used car reviewRAC Drive · Motoring press · published 17 February 2017 · consulted 2 November 2026
Toyota Land Cruiser 150: Gebrauchtwagen-TestAUTO BILD · Motoring press · published 20 January 2020 · consulted 2 November 2026 · in German
1KD-FTV - piston crackToyota-Club.net · Other source · published October 2015 · consulted 2 November 2026
BMW N57Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Toyota KD engineWikipedia (inglés) · Other source · consulted 2 November 2026
Allgemeine Daten zum Toyota Hilux Double Cab 3.0 D-4D Life 4x4 (12/11 - 08/14)ADAC Autokatalog · Technical documentation · consulted 2 November 2026 · in German
Allgemeine Daten zum Toyota Hilux Single Cab 2.5 D-4D 4x2 (12/11 - 08/16)ADAC Autokatalog · Technical documentation · consulted 2 November 2026 · in German
Allgemeine Daten zum Toyota Land Cruiser 3.0 D-4D (5-Türer, 01/11 - 10/13)ADAC Autokatalog · Technical documentation · consulted 2 November 2026 · in German
Motor BMW N57 - Reparación EspecializadaDasercars · Technical documentation · consulted 27 September 2026 · in Spanish
Motor BMW N57: problemas, modelos y qué revisarCarexam · Motoring press · consulted 27 September 2026 · in Spanish
Vanliga fel: Toyota Hilux (guía de averías comunes)BilKoll · Other source · consulted 2 November 2026 · in another language
Toyota Land Cruiser 125 D4-DAutofácil · Motoring press · published 2 February 2011 · consulted 2 November 2026 · in Spanish