2.0 Ingenium diésel vs MZR-CD: which engine is more reliable?

According to our risk index, the MZR-CD carries less risk than the 2.0 Ingenium diésel: 64/100 (high risk) versus 87/100 (very high risk). The 2.0 Ingenium diésel has 4 documented serious faults, the main one being «Timing chain stretch»; the MZR-CD has 3 documented serious faults, the main one being «Timing chain stretch on the 2.2 MZR-CD».

Risk index

2.0 Ingenium diésel

Very high risk · 4 serious faults

Risk index

MZR-CD

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 27 September 202619 sources How we work

Is the 2.0 Ingenium diésel reliable?

The 2.0 Ingenium diesel is the four-cylinder diesel engine that Jaguar Land Rover designed from scratch and has fitted since 2015 to the Range Rover Evoque, the Discovery Sport and several Jaguars. Several sources repeatedly document timing chain stretch, balance shaft wear, turbo failures and fuel dilution of the oil, so it is worth checking thoroughly before buying.^[1][2]

See the 5 of the 2.0 Ingenium diésel faults

Is the MZR-CD reliable?

The MZR-CD is Mazda's most widespread diesel between 2002 and 2013, fitted to the Mazda3, Mazda6, Mazda5 and CX-7. It is sensitive to short journeys: the injector seals and incomplete DPF regenerations can dilute the oil, and the EGR and intake build up carbon. The 2.2-litre redesign (from 2008), with a timing chain instead of a belt, adds the risk of that chain stretching and damaging the engine.^[3][4][5][6]

See the 4 of the MZR-CD faults

Side-by-side comparison

Comparison of 2.0 Ingenium diésel and MZR-CD
Item	2.0 Ingenium diésel	MZR-CD
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,999 cm³	—
Timing	Chain	Timing belt (dry)
Power	150–240 hp	105–185 hp
Production	since 2015^[1]	2002–2013^{[7][8][9][10][11]}
Reliability
Risk index (what is it?)	87Very high risk	64High risk
Documented faults	5	4
Of high or critical severity	4	3
Worst severity	Critical severity	Critical severity
Main faults	Critical severity: Timing chain stretch High severity: Turbocharger failure High severity: Fuel dilution of the oil linked to particulate filter regenerations	Critical severity: Timing chain stretch on the 2.2 MZR-CD High severity: Oil dilution from leaking injector seals and DPF regenerations High severity: Turbocharger wear or failure
Most expensive documented repair	up to €7,000Timing chain stretchPublished figure^[12][13]	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	Ingenium diesel single-turbo 150-200 hp (204DTD, 2015-present)^[12][14][15] Ingenium diesel twin-turbo 240 hp (204DTA, 2015-present)^[13]	2.0 MZR-CD 121-143 (RF, 2002-2005, no DPF)^[3][5][16] 2.0 MZR-CD 105-143 (RF, 2005-2010, with DPF)^{[3][5][16][17]} 2.2 MZR-CD 125-185 (R2, 2008-2013)^{[4][6][18][19]}
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

2.0 Ingenium diésel

See the 10 models with the 2.0 Ingenium diésel

MZR-CD

Other comparisons

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With the MZR-CD

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Sources

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

Ingenium engine familyWikipedia (en) · Other source · consulted 27 September 2026
Jaguar Land Rover's Four-Cylinder Ingenium Engine Is Still Giving Its Maker HeadachesAOL · Motoring press · published 10 August 2026 · consulted 27 September 2026
Fiabilité Mazda 6 (2002-2008)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité Mazda 6 (2008-2013)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Mazda 6 I: Bekannte Probleme und Schwachstellengebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
Mazda 6 II: Bekannte Probleme und Schwachstellengebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
Mazda diesel enginesWikipedia (inglés) · Other source · consulted 27 September 2026
Mazda6Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Mazda3Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Mazda5Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Mazda CX-7Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Fiabilité Land Rover Discovery Sport, pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Fiabilité Jaguar F-Pace, pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Fiabilité Land Rover Range Rover Evoque (2011-2018), pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Fiabilité Jaguar XE, pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Fiabilité Mazda 3 (2003-2009)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Japanische Zuverlässigkeit? Ärger mit den Dieseln von Mazda und Toyotagebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
Fiabilité Mazda 3 (2009-2013)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Mazda 3 II (2009-2013): Typische Probleme & Schwachstellengebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German