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

According to our risk index, the 2.0 CDTI carries less risk than the 1.4 HDi: 38/100 versus 43/100 (both moderate risk). The 2.0 CDTI has 2 documented serious faults, the main one being «Turbocharger wear or failure»; the 1.4 HDi has 1 documented serious fault, the main one being «Timing belt and water pump».

Risk index

2.0 CDTI

38

Moderate risk · 2 serious faults

Lower risk

Risk index

1.4 HDi

43

Moderate risk · 1 serious fault

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

14 sourcesHow we work

Is the 2.0 CDTI reliable?

Unlike the 1.3 and 1.6 CDTI of the same era, the Opel/Vauxhall 2.0 CDTI (2008-2019, 110-210 hp with BiTurbo variants) is an engine with a timing belt rather than a chain. It builds up soot in the injectors and EGR valve, clogs its DPF on short journeys, has a recorded faulty turbo and one engine failure, and its models were among those investigated by Germany's KBA and the Frankfurt public prosecutor over a possible switching-off of the emissions treatment.[1][2][3][4][5][6]

See the 6 of the 2.0 CDTI faults

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.[7][8][9]

See the 5 of the 1.4 HDi faults

Side-by-side comparison

Comparison of 2.0 CDTI and 1.4 HDi
2.0 CDTI1.4 HDi
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,956 cm³1,399 cm³
TimingTiming belt (dry)Timing belt (dry)
Power110–210 hp54–92 hp
Production2008–2019[1][10]2001–2010[7][11][12][13]
Reliability
Risk index (what is it?)38Moderate risk43Moderate risk
Documented faults65
Of high or critical severity21
Worst severityCritical severityHigh severity
Main faults
  1. High severity: Turbocharger wear or failure
  2. Medium severity: Soot build-up in the injectors and EGR valve
  3. Medium severity: Clogged particulate filter (DPF) and oil dilution on short journeys
  1. Medium severity: Injectors that lose their seal and let diesel escape
  2. High severity: Timing belt and water pump
  3. Medium severity: Premature turbo wear from poor lubrication
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • 2.0 CDTI 110-131 hp (A20DTH/A20DTJ, 2008-2015)[2][14]
  • 2.0 CDTI 160-170 hp (A20DTH/A20DTJ/B20DTH, 2008-2019)[3][4]
  • 2.0 BiTurbo CDTI 195 hp (A20DTR, 2011-2015)[2]
  • 2.0 CDTI BiTurbo 210 hp 4x4 (Insignia B, 2017-2022)[10]
  • 1.4 HDi/TDCi 54/68/70 8V (DV4TD, 2001-2009)[8][9]
  • 1.4 HDi 90/92 16V (DV4TED4, 2002-2009)[8][13]
AvoidVersions to avoidNoneNone

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 CDTI

1.4 HDi

See the 12 models with the 1.4 HDi

Other comparisons

With the 2.0 CDTI

With the 1.4 HDi

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.

  1. Opel Insignia AWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  2. Opel Astra (H, J, K): Technische Daten, Abmessungen, AnhängelastGebrauchtwagenberater.de · Technical documentation · consulted 27 September 2026 · in German
  3. Fiabilité Opel Insignia - avis et pannes des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  4. Fiabilité Opel Insignia Grand Sport - avis et pannes des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  5. Opel está de nuevo en el punto de mira por las emisiones con 60.000 coches afectadosMotorpasión · Motoring press · published 16 July 2018 · consulted 27 September 2026 · in Spanish
  6. La Fiscalía alemana registra las instalaciones de Opel en el marco de una investigación sobre emisionesMotorpasión · Motoring press · published 15 October 2018 · consulted 27 September 2026 · in Spanish
  7. Motor PSA DVWikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
  8. Essai, avis et fiabilité des 1.4 HDI 68 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  9. Essai, avis et fiabilité des 1.4 HDI 70 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  10. Opel InsigniaWikipedia (inglés) · Other source · consulted 27 September 2026
  11. Ford Duratorq engineWikipedia (en) · Other source · consulted 27 September 2026
  12. Peugeot DV4TD engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
  13. Peugeot DV4TED4 engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
  14. Opel Insignia A – Typische Probleme & KrankheitenGebrauchtwagenberater.de · Other source · consulted 27 September 2026 · in German