1.4 HDi vs 2.0 dCi: which engine is more reliable?

According to our risk index, the 1.4 HDi carries less risk than the 2.0 dCi: 43/100 (moderate risk) versus 52/100 (high risk). The 1.4 HDi has 1 documented serious fault, the main one being «Timing belt and water pump»; the 2.0 dCi has 2 documented serious faults, the main one being «Premature turbocharger failure».

Risk index

1.4 HDi

Moderate risk · 1 serious fault

Lower risk

Risk index

2.0 dCi

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 202616 sources How we work

Is the 1.4 HDi reliable?

It is a small diesel that is generally reliable, but with a very well-documented weakness: the injectors tend to lose their seal over time and let diesel escape. The turbo and the EGR valve also fail on a noticeable minority of units, and there are isolated cases of the crankshaft damper pulley failing at very high mileages. The timing belt does not seem to cause more problems than on any diesel of its era if it is changed on time.^[1][2][3]

See the 5 of the 1.4 HDi faults

Is the 2.0 dCi reliable?

The 2.0 dCi (M9R) is a Renault-Nissan Alliance diesel with known, well-documented weak points: the turbo and the EGR valve fail relatively often, the particulate filter clogs up in urban use, and there are cases of injectors and even the timing chain failing earlier than expected in several of the models that use it.^[4][5][6][7]

See the 5 of the 2.0 dCi faults

Side-by-side comparison

Comparison of 1.4 HDi and 2.0 dCi
Item	1.4 HDi	2.0 dCi
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,399 cm³	1,995 cm³
Timing	Timing belt (dry)	Chain
Power	54–92 hp	90–177 hp
Production	2001–2010^{[1][8][9][10]}	2005–2016^{[11][12][13][14]}
Reliability
Risk index (what is it?)	43Moderate risk	52High risk
Documented faults	5	5
Of high or critical severity	1	2
Worst severity	High severity	Critical severity
Main faults	Medium severity: Injectors that lose their seal and let diesel escape High severity: Timing belt and water pump Medium severity: Premature turbo wear from poor lubrication	High severity: Premature turbocharger failure Critical severity: Timing chain wear or breakage Medium severity: Clogged particulate filter (DPF)
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 HDi/TDCi 54/68/70 8V (DV4TD, 2001-2009)^[2][3] 1.4 HDi 90/92 16V (DV4TED4, 2002-2009)^[2][10]	2.0 dCi 130-150 (M9R, cars, 2005-2012)^[4][5][7] 2.0 dCi 160-177 (M9R, higher-output cars, 2006-2016)^[5][6][15] 2.0 dCi 90-115 (M9R, vans, 2006-2014)^[16]
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 HDi

See the 12 models with the 1.4 HDi

2.0 dCi

See the 12 models with the 2.0 dCi

Other comparisons

With the 1.4 HDi

With the 2.0 dCi

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.

Motor PSA DVWikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
Essai, avis et fiabilité des 1.4 HDI 68 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
Essai, avis et fiabilité des 1.4 HDI 70 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité Renault Laguna 3 : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité Renault Koleos : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité Renault Espace 4 : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité Nissan Qashqai : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Ford Duratorq engineWikipedia (en) · Other source · consulted 27 September 2026
Peugeot DV4TD engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
Peugeot DV4TED4 engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
Anexo:Motores de RenaultWikipedia · Other source · consulted 27 September 2026 · in Spanish
Renault KoleosWikipedia · Other source · consulted 27 September 2026
Renault Mégane IIIWikipedia · Other source · consulted 27 September 2026 · in French
Renault Grand Espace 2.0 dCi PrivilegeAutopista · Motoring press · published 19 September 2006 · consulted 27 September 2026 · in Spanish
Fiabilité Nissan X-Trail : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Renault TraficWikipedia · Other source · consulted 27 September 2026