1.7 CDTI vs 2.2 MultiJet / BlueHDi (Stellantis): which engine is more reliable?

According to our risk index, the 2.2 MultiJet / BlueHDi (Stellantis) carries less risk than the 1.7 CDTI: 14/100 (low risk) versus 36/100 (moderate risk). The 1.7 CDTI has 3 documented serious faults, the main one being «Dual-mass flywheel and clutch wear»; the 2.2 MultiJet / BlueHDi (Stellantis) has 1 documented serious fault, the main one being «Unvulcanised fuel return pipe: fuel leak and fire risk».

Risk index

1.7 CDTI

Moderate risk · 3 serious faults

Risk index

2.2 MultiJet / BlueHDi (Stellantis)

Low risk · 1 serious fault

Lower risk

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

Reviewed on 30 October 202623 sources How we work

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.^{[1][2][3][4][5][6][7]}

See the 5 of the 1.7 CDTI faults

Is the 2.2 MultiJet / BlueHDi (Stellantis) reliable?

The 2.2 diesels of Stellantis's large vans (BlueHDi DW12 in the Boxer, Jumper and Movano; Multijet 3 in the Ducato) are recent engines with no fault statistics of their own. What is documented are campaigns: AdBlue and SCR software, and the fuel return pipe on 2024-2025 units, with a fire risk. Long-term history is missing.^{[8][9][10][11][12]}

See the 2 of the 2.2 MultiJet / BlueHDi (Stellantis) faults

Side-by-side comparison

Comparison of 1.7 CDTI and 2.2 MultiJet / BlueHDi (Stellantis)
Item	1.7 CDTI	2.2 MultiJet / BlueHDi (Stellantis)
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,686 cm³	—
Timing	Timing belt (dry)	Timing belt (dry)
Power	100–130 hp	120–180 hp
Production	2003–2015^[1][13][14]	since 2019^{[15][16][17][18]}
Reliability
Risk index (what is it?)	36Moderate risk	14Low risk
Documented faults	5	2
Of high or critical severity	3	1
Worst severity	Critical severity	High severity
Main faults	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	High severity: Unvulcanised fuel return pipe: fuel leak and fire risk Low severity: AdBlue (SCR) system: the warning light may not come on if the urea doser fails
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.7 CDTI 100-101 hp (Z17DTH, 2003-2007)^[6][7] 1.7 CDTI 110 hp (Z17DTJ/A17DTJ/A17DTC/A17DTE, 2007-2014)^[6][7] 1.7 CDTI 125 hp (Z17DTR/A17DTR, 2006-2013)^[2][3] 1.7 CDTI 130 hp (A17DTS, 2010-2015)^[6][7]	2.2 BlueHDi 120/140/165 (DW12 RU, Euro 6d, Boxer and Jumper 2019-2023, Movano C 2021-2023)^{[9][19][20][21]} 2.2 Multijet 3 H3-Power 120/140/160/180 (Ducato, Euro 6d-Final, 2021-2023)^[8][22][23] 2.2 Multijet Euro 6e 120/140/160/180 (Ducato, Boxer, Jumper, Movano C and Proace Max, 2024 onwards)^[10][11][12]
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

1.7 CDTI

See the 9 models with the 1.7 CDTI

2.2 MultiJet / BlueHDi (Stellantis)

Other comparisons

With the 1.7 CDTI

With the 2.2 MultiJet / BlueHDi (Stellantis)

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Sources

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

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
Fiat Ducato 2.3 Multijet 2026: Probleme, Zahnriemen, Varianten (nota sobre el 2.2 Multijet 3)PlanMyCamper · Other source · consulted 9 October 2026 · in German
Boxer: error de software del inyector de urea (alerta Safety Gate A12/01870/23)RappelConso (Gobierno de Francia) · Official body · published 25 August 2023 · consulted 9 October 2026 · in French
Ducato NG: tubo de retorno de combustible (alerta Safety Gate SR/00527/26)RappelConso (Gobierno de Francia) · Official body · published 20 February 2026 · consulted 9 October 2026 · in French
Rückruf Stellantis: Diese Transporter können Kraftstoff verlierenAuto Motor und Sport · Motoring press · published 4 March 2026 · consulted 9 October 2026 · in German
Stellantis. Risque de fuite de carburant sur les véhicules utilitairesL'Argus · Motoring press · published 12 March 2026 · consulted 9 October 2026 · in French
Opel Corsa DWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Opel MerivaWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
PSA EW/DW engine (sección DW12 y DW12 RU)Wikipedia (inglés) · Other source · consulted 9 October 2026
Fiat Ducato (motores Euro 6d-Temp, 6d-Final y 6e)Wikipedia (alemán) · Other source · consulted 9 October 2026 · in German
Atención a la junta de culata del motor 2.2 de la Fiat Ducato y equivalentesAutopos · Motoring press · published 15 July 2026 · consulted 9 October 2026 · in Spanish
Opel Movano (Movano C desde 2021)Wikipedia (alemán) · Other source · consulted 9 October 2026 · in German
Jumper: error de software del inyector de urea (alerta Safety Gate A12/01876/23)RappelConso (Gobierno de Francia) · Official body · published 25 August 2023 · consulted 9 October 2026 · in French
Movano: error de software del inyector de urea (alerta Safety Gate A12/01877/23)RappelConso (Gobierno de Francia) · Official body · published 25 August 2023 · consulted 9 October 2026 · in French
DVSA – base de llamadas a revisiónDVSA (Reino Unido) · Official body · consulted 9 October 2026
ADAC Pannenstatistik 2026 (categoría Vans/Transporter)ADAC · Reliability study · published 23 April 2026 · consulted 9 October 2026 · in German
Fiat Ducato 2015-2025 Maintenance Plans (2.2 H3-Power)Haynes (Reino Unido) · Technical documentation · consulted 9 October 2026