2.3 MultiJet vs 1.7 CDTI: which engine is more reliable?

According to our risk index, the 2.3 MultiJet carries less risk than the 1.7 CDTI: 25/100 versus 36/100 (both moderate risk). The 2.3 MultiJet has 2 documented serious faults, the main one being «Camshaft breakage due to a manufacturing defect (Ducato, 2016-2017)»; the 1.7 CDTI has 3 documented serious faults, the main one being «Dual-mass flywheel and clutch wear».

Risk index

2.3 MultiJet

Moderate risk · 2 serious faults

Lower risk

Risk index

1.7 CDTI

Moderate 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 9 October 202621 sources How we work

Is the 2.3 MultiJet reliable?

The 2.3 MultiJet (F1A) in the Fiat Ducato and Iveco Daily has few faults with a solid source: the best documented are three campaigns on the 2016-2019 Euro 6 Ducato (intercooler hose, EGR pipe and camshaft). Owners and garages also cite EGR, throttle body, injectors and AdBlue, almost always on forums or commercial websites, with no statistics.^{[1][2][3][4][5][6][7]}

See the 6 of the 2.3 MultiJet 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.^{[8][9][10][11][12][13][14]}

See the 5 of the 1.7 CDTI faults

Side-by-side comparison

Comparison of 2.3 MultiJet and 1.7 CDTI
Item	2.3 MultiJet	1.7 CDTI
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,287 cm³	1,686 cm³
Timing	Timing belt (dry)	Timing belt (dry)
Power	95–160 hp	100–130 hp
Production	since 2002^{[15][16][17][18]}	2003–2015^[8][19][20]
Reliability
Risk index (what is it?)	25Moderate risk	36Moderate risk
Documented faults	6	5
Of high or critical severity	2	3
Worst severity	Critical severity	Critical severity
Main faults	Critical severity: Camshaft breakage due to a manufacturing defect (Ducato, 2016-2017) Medium severity: EGR valve and throttle body clogged by carbon deposits and moisture Medium severity: Leaking or underperforming common-rail injectors	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	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	First-batch 2.3 Multijet / HPI (F1AE0481, 2006-2011)^[5][18] 2.3 Multijet II Euro 5 (F1AE3481, 2010-2016)^[5][21] 2.3 Multijet Euro 6 with dual EGR (Ducato, 2016-2019)^[1][2][3][6] 2.3 Multijet 2 Euro 6d with AdBlue (Ducato, 2019-2021)^[7] 2.3 F1A in the Iveco Daily VI (2014-present)^[3]	1.7 CDTI 100-101 hp (Z17DTH, 2003-2007)^[13][14] 1.7 CDTI 110 hp (Z17DTJ/A17DTJ/A17DTC/A17DTE, 2007-2014)^[13][14] 1.7 CDTI 125 hp (Z17DTR/A17DTR, 2006-2013)^[9][10] 1.7 CDTI 130 hp (A17DTS, 2010-2015)^[13][14]
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

2.3 MultiJet

1.7 CDTI

See the 7 models with the 1.7 CDTI

Other comparisons

With the 2.3 MultiJet

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.

Fiat Ducato (2016-2017): manguito del intercooler (alerta Safety Gate A12/0285/18)car-recalls.eu (reproduce Safety Gate) · Other source · published 23 February 2018 · consulted 8 October 2026
Fiat Ducato (2016-2017): tubo de la EGR (alerta Safety Gate A12/1794/17)car-recalls.eu (reproduce Safety Gate) · Other source · published 16 December 2017 · consulted 8 October 2026
DVSA – base de llamadas a revisiónDVSA (Reino Unido) · Official body · consulted 8 October 2026
Camshaft fault sparks Fiat Ducato recallUte and Van Guide (Australia) · Motoring press · published 7 March 2017 · consulted 8 October 2026
Ducato multijet 2.3 starting problem (hilo del foro)The FIAT Forum · Owners' forum · published 3 May 2014 · consulted 8 October 2026
Ducato P0401 P0402 P0236 P0238 and limp mode, 2017 Euro 6 (hilo del foro)The FIAT Forum · Owners' forum · published 5 December 2021 · consulted 8 October 2026
Fiat Ducato 2.3 MultiJet: AdBlue, SCR y modo de emergencia (diagnóstico)KFZ Dietrich (taller, Alemania) · Other source · published 10 September 2026 · consulted 8 October 2026 · in German
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 DucatoWikipedia (es) · Other source · consulted 8 October 2026 · in Spanish
Fiat Ducato (tipo 250, motores Multijet y Euro 6)Wikipedia (de) · Other source · consulted 8 October 2026 · in German
Iveco Daily (motores HPI/F1A por generación)Wikipedia (de) · Other source · consulted 8 October 2026 · in German
Iveco Daily IV 35C12 2.3 HPI: fiabilidadCarverif · Other source · consulted 8 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
Fiat Ducato and variants 2007 onCATMAG · Motoring press · consulted 8 October 2026