2.5 dCi YD25 vs 2.2 HDi: which engine is more reliable?

According to our risk index, the 2.2 HDi carries less risk than the 2.5 dCi YD25: 48/100 (moderate risk) versus 59/100 (high risk). The 2.5 dCi YD25 has 3 documented serious faults, the main one being «Timing chain wear and failure»; the 2.2 HDi has 3 documented serious faults, the main one being «DPF clogging with additive, especially on the 128-138 hp version».

Risk index

2.5 dCi YD25

High risk · 3 serious faults

Risk index

2.2 HDi

Moderate 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 5 October 202614 sources How we work

Is the 2.5 dCi YD25 reliable?

The 2.5 dCi YD25 in the Navara D40 and Pathfinder R51 is tough, but it has one documented weak point: the lower timing chain, whose failure can destroy the engine. Check its condition, as well as the EGR and the turbo.^[1][2][3]

See the 4 of the 2.5 dCi YD25 faults

Is the 2.2 HDi reliable?

This is a diesel derived from the 2.0 HDi that PSA and Ford shared in large saloons and MPVs (407, 607, 807, C5, C6, C8) and that Land Rover and Ford used under their own names (TDCi, TD4, SD4) in the Mondeo IV, the Freelander 2 and the first Evoque. According to fiches-auto it does not suffer chronically from the turbo or dual-mass flywheel problems of smaller HDi engines, but the 128-138 hp version does have a recurring problem of DPF clogging.^[4][5][6][7]

See the 4 of the 2.2 HDi faults

Side-by-side comparison

Comparison of 2.5 dCi YD25 and 2.2 HDi
Item	2.5 dCi YD25	2.2 HDi
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,488 cm³	2,179 cm³
Timing	Chain	Timing belt (dry)
Power	144–190 hp	128–204 hp
Production	2005–2015^[1][8][9]	2000–2015^{[4][6][10][11][12]}
Reliability
Risk index (what is it?)	59High risk	48Moderate risk
Documented faults	4	4
Of high or critical severity	3	3
Worst severity	Critical severity	High severity
Main faults	Critical severity: Timing chain wear and failure High severity: Turbocharger failure Medium severity: EGR valve clogged with carbon	High severity: DPF clogging with additive, especially on the 128-138 hp version High severity: Turbo faults, somewhat more frequent on the sequential twin-turbo versions High severity: Piezo injector wear and failure
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	2.2 HDi 150-156 (single variable-geometry turbo, 2006-2012)^[13][14]
With cautionVersions to be cautious about	2.5 dCi 144 and 174 hp (YD25DDTi, 2005-2010)^[1][2] 2.5 dCi 190 hp (YD25DDTi, 2010-2015)^[1][2] 2.5 YD25DDTi 133 hp (Navara D22 / NP300, from 2001)^[1][2]	2.2 HDi 128-138 (DW12 TED4, single turbo, 2000-2006)^[7] 2.2 HDi 170-175 twin-turbo (DW12 BTED4, 2005-2010)^[7][11] 2.2 HDi 190-204 twin-turbo (DW12 C, 2010-2015)^[11]
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

2.5 dCi YD25

2.2 HDi

See the 13 models with the 2.2 HDi

Other comparisons

With the 2.5 dCi YD25

With the 2.2 HDi

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Sources

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

Tips for buying a second-hand pickup: Nissan NavaraFarmers Weekly Interactive · Motoring press · consulted 5 October 2026
YD25 Engine Guide: Specs, Reliability, Problems & Buying TipsAutopartswd · Technical documentation · consulted 5 October 2026
Nissan Navara ProblemeCarwiki.de · Other source · consulted 5 October 2026 · in German
PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
Ford MondeoWikipedia (francés) · Other source · consulted 27 September 2026 · in French
Land Rover FreelanderWikipedia (francés) · Other source · consulted 27 September 2026 · in French
Essai, avis et fiabilité des 2,2 HDI 136 chevauxFiches-Auto · Motoring press · consulted 27 September 2026 · in French
Nissan YD engineWikipedia · Other source · consulted 5 October 2026
Nissan NavaraWikipedia · Other source · consulted 5 October 2026
Range Rover EvoqueWikipedia (inglés) · Other source · consulted 27 September 2026
Essai, avis et fiabilité des 2,2 HDI 204 chevauxFiches-Auto · Motoring press · consulted 27 September 2026 · in French
Essai Citroën C5 Exclusive + 2.2 HDI 200 TourerActu Automobile · Motoring press · published 2011 · consulted 27 September 2026 · in French
Essai Peugeot 4007 2.2 HDi DCS 6Caradisiac · Motoring press · published 7 April 2010 · consulted 27 September 2026 · in French
Citroën C-CrosserWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish