1.4 D-4D vs D4/D5: which engine is more reliable?

According to our risk index, the 1.4 D-4D carries less risk than the D4/D5: 48/100 (moderate risk) versus 64/100 (high risk). The 1.4 D-4D has 2 documented serious faults, the main one being «Turbocharger failure»; the D4/D5 has 2 documented serious faults, the main one being «Auxiliary belt breakage that takes the timing belt with it (5-cylinder)».

Risk index

1.4 D-4D

Moderate risk · 2 serious faults

Lower risk

Risk index

D4/D5

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 27 September 202614 sources How we work

Is the 1.4 D-4D reliable?

Yes, generally: the 1.4 D-4D (1ND-TV) is one of Toyota's most widespread small diesels, with a reputation for reasonable reliability. The documented weak points are the injectors, the turbo, the EGR valve, the diesel particulate filter (on versions that have one) and the clutch and dual-mass flywheel assembly, with cases spread between 2002 and 2018 across the Yaris, Corolla, Auris, Urban Cruiser, Verso-S and MINI One D.^{[1][2][3][4][5]}

See the 6 of the 1.4 D-4D faults

Is the D4/D5 reliable?

The Volvo D5/D4 covers two different engines: the classic 5-cylinder (2001-2016, D5244T/D5204) and the 4-cylinder VEA (D4204T, from 2013). On the former, several owners document the auxiliary belt breaking and taking the timing belt with it, destroying the engine; on the VEA the most common problems are the EGR, the DPF and oil consumption that can damage the turbo from 90,000-150,000 km. Neither is an engine to buy without checking its service history.^[6][7][8][9]

See the 6 of the D4/D5 faults

Side-by-side comparison

Comparison of 1.4 D-4D and D4/D5
Item	1.4 D-4D	D4/D5
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,364 cm³	—
Timing	Chain	Timing belt (dry)
Power	75–90 hp	120–235 hp
Production	2002–2018^[1][10]	2001–2024^[6][7][11]
Reliability
Risk index (what is it?)	48Moderate risk	64High risk
Documented faults	6	6
Of high or critical severity	2	2
Worst severity	High severity	Critical severity
Main faults	High severity: Turbocharger failure High severity: Oil build-up in the intercooler of the 1.4 D-4D (2014 campaign) Medium severity: Injector wear and failure	Critical severity: Auxiliary belt breakage that takes the timing belt with it (5-cylinder) High severity: High oil consumption from 90,000-150,000 km that harms the turbo (VEA) Medium severity: Clogged EGR valve or EGR cooler leaking into the intake
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.4 D-4D 75 (1ND-TV, 75 hp, 2002-2005)^[3][5] 1.4 D-4D 90 (1ND-TV, 88-90 hp, 2004-2018)^[2][4][12]	2.4/2.0 D3/D4/D5 5-cylinder (D5244T/D5204, 2001-2016)^[8][13] 2.0 D2/D3/D4/D5 VEA 4-cylinder (D4204T, 2013-2024)^[8][9][14]
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

1.4 D-4D

See the 8 models with the 1.4 D-4D

D4/D5

See the 14 models with the D4/D5

Other comparisons

With the 1.4 D-4D

With the D4/D5

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.

Toyota ND engineWikipedia · Other source · consulted 27 September 2026
Toyota Yaris 2 (2005-2011) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Toyota Yaris (1999-2005) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Toyota Auris (2007-2012) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Mini Mini (2001-2006) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Volvo Engine ArchitectureWikipedia · Other source · consulted 27 September 2026
Volvo D5: 185 CV para el S60, V70, XC70 y XC90Autopista.es · Motoring press · published July 2005 · consulted 27 September 2026 · in Spanish
Fiabilité et pannes Volvo XC60 (2008-2017)Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
Fiabilité et pannes Volvo V60Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
Toyota Corolla (E120)Wikipedia · Other source · consulted 27 September 2026
Volvo XC90Wikipedia · Other source · consulted 27 September 2026 · in Spanish
Toyota Corolla (2002-2007) : fiabilité, pannes et rappelsFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes Volvo S60Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
Fiabilité et pannes Volvo XC60 (2017-)Fiches-auto.fr · Other source · consulted 27 September 2026 · in French