2.2 TD4 / SD4 vs 2.5 dCi YD25: which engine is more reliable?

According to our risk index, the 2.2 TD4 / SD4 carries less risk than the 2.5 dCi YD25: 32/100 (moderate risk) versus 59/100 (high risk). The 2.2 TD4 / SD4 has 2 documented serious faults, the main one being «Coolant leak from the EGR valve cooler»; the 2.5 dCi YD25 has 3 documented serious faults, the main one being «Timing chain wear and failure».

Risk index

2.2 TD4 / SD4

Moderate risk · 2 serious faults

Lower risk

Risk index

2.5 dCi YD25

High risk · 3 serious faults

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

Reviewed on 5 October 202612 sources How we work

Is the 2.2 TD4 / SD4 reliable?

This is the 2.2-litre diesel of the Freelander 2, the first Evoque, the 2014-2015 Discovery Sport and the Jaguar XF 2.2D. The sources consulted do not describe it as a problematic engine, but they point to three things: the EGR cooler, the DPF in urban use, and replacing the belt along with the water pump.^[1][2][3]

See the 3 of the 2.2 TD4 / SD4 faults

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.^[4][5][6]

See the 4 of the 2.5 dCi YD25 faults

Side-by-side comparison

Comparison of 2.2 TD4 / SD4 and 2.5 dCi YD25
Item	2.2 TD4 / SD4	2.5 dCi YD25
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,179 cm³	2,488 cm³
Timing	Timing belt (dry)	Chain
Power	150–200 hp	144–190 hp
Production	2006–2015^{[7][8][9][10]}	2005–2015^[4][11][12]
Reliability
Risk index (what is it?)	32Moderate risk	59High risk
Documented faults	3	4
Of high or critical severity	2	3
Worst severity	Critical severity	Critical severity
Main faults	High severity: Coolant leak from the EGR valve cooler Critical severity: Timing belt failure and water pump failure Medium severity: Diesel particulate filter (DPF) clogged by urban use	Critical severity: Timing chain wear and failure High severity: Turbocharger failure Medium severity: EGR valve clogged with carbon
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	2.2 TD4 / eD4 150-160 hp^[1][3][10] 2.2 SD4 190-200 hp^[2]	2.5 dCi 144 and 174 hp (YD25DDTi, 2005-2010)^[4][5] 2.5 dCi 190 hp (YD25DDTi, 2010-2015)^[4][5] 2.5 YD25DDTi 133 hp (Navara D22 / NP300, from 2001)^[4][5]
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

2.2 TD4 / SD4

2.5 dCi YD25

Other comparisons

With the 2.2 TD4 / SD4

With the 2.5 dCi YD25

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.

Land Rover Freelander Mk2 common problems 2006-2015Haynes · Technical documentation · published December 2022 · consulted 5 October 2026
Test / Avis Land Rover Range Rover Evoque 2.2 SD4 190 ch (2011-2018)Fiches-auto · Owners' forum · consulted 5 October 2026 · in French
Problemas Land Rover Freelander 2Totalrenting · Other source · consulted 5 October 2026 · in Spanish
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
Land Rover FreelanderWikipedia (inglés) · Other source · consulted 5 October 2026
Land Rover Discovery SportWikipedia (inglés) · Other source · consulted 5 October 2026
Jaguar XF (X250)Wikipedia (inglés) · Other source · consulted 5 October 2026
How to fit a timing belt on a Land Rover Freelander 2Professional Motor Mechanic (PMM) · Motoring press · published 22 January 2018 · consulted 5 October 2026
Nissan YD engineWikipedia · Other source · consulted 5 October 2026
Nissan NavaraWikipedia · Other source · consulted 5 October 2026