2.0 TDI vs 1.7 CDTI: which engine is more reliable?

According to our risk index, the 1.7 CDTI carries less risk than the 2.0 TDI: 36/100 versus 48/100 (both moderate risk). The 2.0 TDI has 3 documented serious faults, the main one being «Oil pump failure on the pumpe-düse 2.0 TDI»; the 1.7 CDTI has 3 documented serious faults, the main one being «Dual-mass flywheel and clutch wear».

Risk index

2.0 TDI

Moderate risk · 3 serious faults

Risk index

1.7 CDTI

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 27 September 202624 sources How we work

Is the 2.0 TDI reliable?

It depends on the generation. The EA189 (2008-2015) is the dieselgate engine: it needed a software update and has a record of EGR, particulate filter, turbo and injection faults. The earlier pumpe-düse (unit injector) engine has oil pump failures, and on the EA288 and EA288 evo (from 2012) the known faults are minor: coolant leaks and the odd AdBlue tank.^{[1][2][3][4][5][6]}

See the 8 of the 2.0 TDI faults

Is the 1.7 CDTI reliable?

The 1.7 CDTI (Isuzu, 2003-2015) is a simple, widely used diesel, but it has built up accounts of soot-fouled EGR valves and injectors, a clogged diesel particulate filter (DPF) with oil dilution, wear of the dual-mass flywheel and clutch, and of the Hitachi-brand alternator; it also requires the timing belt to be changed every 150,000 km or 6 years to avoid a serious failure.^{[7][8][9][10][11][12][13]}

See the 5 of the 1.7 CDTI faults

Side-by-side comparison

Comparison of 2.0 TDI and 1.7 CDTI
Item	2.0 TDI	1.7 CDTI
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,968 cm³	1,686 cm³
Timing	Timing belt (dry)	Timing belt (dry)
Power	84–240 hp	100–130 hp
Production	since 2003^{[1][14][15][16][17]}	2003–2015^[7][18][19]
Reliability
Risk index (what is it?)	48Moderate risk	36Moderate risk
Documented faults	8	5
Of high or critical severity	3	3
Worst severity	Critical severity	Critical severity
Main faults	Critical severity: Oil pump failure on the pumpe-düse 2.0 TDI Medium severity: Manipulated emissions software (dieselgate) and the subsequent update High severity: High-pressure pump, injectors and diesel leaks on the EA189	High severity: Dual-mass flywheel and clutch wear High severity: Clogged diesel particulate filter (DPF) and oil dilution Critical severity: Timing belt: risk of serious failure if not changed on time
Most expensive documented repair	up to €3,000Clogged particulate filter or faulty pressure sensorPublished figure^[3][20][21]	No reliable data
Which versions to buy
BuyRecommended versions	2.0 TDI EA288 (from 2012)^[5] 2.0 TDI EA288 evo (from 2019)^[6]	None
With cautionVersions to be cautious about	2.0 TDI pumpe-düse unit injector (EA188, 2003-2010)^[4][22] 2.0 TDI common rail EA189 (2008-2015)^[3][23][24]	1.7 CDTI 100-101 hp (Z17DTH, 2003-2007)^[12][13] 1.7 CDTI 110 hp (Z17DTJ/A17DTJ/A17DTC/A17DTE, 2007-2014)^[12][13] 1.7 CDTI 125 hp (Z17DTR/A17DTR, 2006-2013)^[8][9] 1.7 CDTI 130 hp (A17DTS, 2010-2015)^[12][13]
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 TDI

See the 51 models with the 2.0 TDI

1.7 CDTI

See the 9 models with the 1.7 CDTI

Other comparisons

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With the 1.7 CDTI

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Sources

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

VW EA189Wikipedia (alemán) · Other source · consulted 26 September 2026 · in German
Un Volkswagen Tiguan en occasion : les meilleures versions par budget, et la fiabilitéCaradisiac · Motoring press · published 1 April 2025 · consulted 26 September 2026 · in French
Maxi-fiche fiabilité - Audi A4 (2007-2015) : belle, mais capricieuseCaradisiac · Motoring press · published 1 April 2023 · consulted 26 September 2026 · in French
Audi A6 III (2004-2011) : la fiche express fiabilité de CaradisiacCaradisiac · Motoring press · published 4 July 2022 · consulted 26 September 2026 · in French
Fiabilité de l'Audi A3 (3e génération) : la maxi-fiche occasion de CaradisiacCaradisiac · Motoring press · published 19 December 2018 · consulted 26 September 2026 · in French
Maxi-fiche fiabilité - Volkswagen Golf VIII : du genre agaçanteCaradisiac · Motoring press · published 5 April 2024 · consulted 26 September 2026 · in French
Circle L engineWikipedia (inglés) · Other source · consulted 27 September 2026
Essai complet Opel Astra (H) : fiabilité et avisFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Essai complet Opel Zafira 2 : fiabilité et avisFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Essai complet Opel Meriva : fiabilité et avisFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Opel Astra H (A04): Probleme & KaufberatungGebrauchtwagenberater.de · Other source · consulted 27 September 2026 · in German
Opel Meriva A: ProblemeGebrauchtwagenberater.de · Other source · consulted 27 September 2026 · in German
Opel Meriva B: ProblemeGebrauchtwagenberater.de · Other source · consulted 27 September 2026 · in German
VW EA288Wikipedia (alemán) · Other source · consulted 26 September 2026 · in German
VW EA188Wikipedia (alemán) · Other source · consulted 26 September 2026 · in German
List of Volkswagen Group diesel enginesWikipedia (inglés) · Other source · consulted 26 September 2026
Three world premieres: Volkswagen presents progressive hybrid, natural gas and diesel systems at the Vienna Motor SymposiumVolkswagen Newsroom · Manufacturer · published 27 April 2018 · consulted 26 September 2026
Opel Corsa DWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Opel MerivaWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Filtro de partículas: ¿mejor limpiar o sustituir?Autofácil · Motoring press · published 7 April 2022 · consulted 26 September 2026 · in Spanish
Cuánto cuesta sustituir el filtro de partículas de un coche diéselDiariomotor · Motoring press · published 17 January 2020 · consulted 26 September 2026 · in Spanish
VW/Audi 2.0 TDI PD EA188 Engine Specs, Problems, Reliability, Oil, InfoMotorReviewer · Other source · consulted 26 September 2026
Información sobre el motor EA189Volkswagen España · Manufacturer · consulted 26 September 2026 · in Spanish
Used Skoda Yeti reviewAuto Express · Motoring press · published 15 June 2016 · consulted 26 September 2026