2.0 dCi vs 1.9 TDI: which engine is more reliable?

According to our risk index, the 2.0 dCi carries less risk than the 1.9 TDI: 52/100 versus 66/100 (both high risk). The 2.0 dCi has 2 documented serious faults, the main one being «Premature turbocharger failure»; the 1.9 TDI has 3 documented serious faults, the main one being «Big-end bearing failure».

Risk index

2.0 dCi

High risk · 2 serious faults

Lower risk

Risk index

1.9 TDI

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 27 September 202622 sources How we work

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.^[1][2][3][4]

See the 5 of the 2.0 dCi faults

Is the 1.9 TDI reliable?

It depends a lot on the version. The rotary pump (1996-2003, codes ALH and AGR among others) has a reputation for great durability. The unit injector system (1999-2010) improves performance and emissions, but has more documented faults: dual-mass flywheel, turbo, EGR valve and, above all in the 105 hp version, cases of broken big-end bearings.^{[5][6][7][8][9][10][11]}

See the 6 of the 1.9 TDI faults

Side-by-side comparison

Comparison of 2.0 dCi and 1.9 TDI
Item	2.0 dCi	1.9 TDI
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,995 cm³	1,896 cm³
Timing	Chain	Timing belt (dry)
Power	90–177 hp	75–150 hp
Production	2005–2016^{[12][13][14][15]}	1996–2010^{[5][16][17][18][19]}
Reliability
Risk index (what is it?)	52High risk	66High risk
Documented faults	5	6
Of high or critical severity	2	3
Worst severity	Critical severity	Critical severity
Main faults	High severity: Premature turbocharger failure Critical severity: Timing chain wear or breakage Medium severity: Clogged particulate filter (DPF)	Critical severity: Big-end bearing failure High severity: Seized or broken variable-geometry turbo Medium severity: EGR valve clogged with carbon
Most expensive documented repair	No reliable data	up to €1,500Premature wear of the dual-mass flywheel and clutchPublished figure^[20]
Which versions to buy
BuyRecommended versions	None	1.9 TDI rotary pump (VP37, 1996-2003)^[6]
With cautionVersions to be cautious about	2.0 dCi 130-150 (M9R, cars, 2005-2012)^[1][2][4] 2.0 dCi 160-177 (M9R, higher-output cars, 2006-2016)^[2][3][21] 2.0 dCi 90-115 (M9R, vans, 2006-2014)^[22]	1.9 TDI high-performance unit injector (101-150 hp, 1999-2003)^[8][20] 1.9 TDI unit injector 75-105 hp (2003-2010)^[7][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

2.0 dCi

See the 12 models with the 2.0 dCi

1.9 TDI

See the 20 models with the 1.9 TDI

Other comparisons

With the 2.0 dCi

With the 1.9 TDI

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.

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
List of discontinued Volkswagen Group diesel enginesWikipedia (inglés) · Other source · consulted 27 September 2026
Les TDI sont-ils fiables ?fiches-auto.fr · Motoring press · published 15 December 2016 · consulted 27 September 2026 · in French
Tous les problèmes sur Volkswagen Golf Vfiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Tous les problèmes sur Volkswagen Passat (1996-2004)fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Tous les problèmes sur Volkswagen Passat (2004-2010)fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Tous les problèmes sur Škoda Octavia (1997-2004)fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Tous les problèmes sur Škoda Octavia (2004-2012)fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
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
Volkswagen Golf IVWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Volkswagen Golf VWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Volkswagen TouranWikipedia (inglés) · Other source · consulted 27 September 2026
Volkswagen CaddyWikipedia (inglés) · Other source · consulted 27 September 2026
Tous les problèmes sur Volkswagen Golf IVfiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
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