2.4 JTD / JTDm Multijet 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 2.4 JTD / JTDm Multijet: 14/100 (low risk) versus 25/100 (moderate risk). The 2.4 JTD / JTDm Multijet has no documented serious faults; 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

2.4 JTD / JTDm Multijet

Moderate risk · 0 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 202624 sources How we work

Is the 2.4 JTD / JTDm Multijet reliable?

The five-cylinder 2.4 JTD/JTDm is powerful but more delicate in its 20V version. Auto Świat says the 10V rarely breaks down on its own; on the 20V, owner testimonies for the 200 and 210 hp Alfa 159 pile up mentions of the EGR and particulate filter, and the 200 hp had the manifold flap failure that Fiat corrected in 2007.^[1][2]

See the 4 of the 2.4 JTD / JTDm Multijet 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.^{[3][4][5][6][7]}

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

Side-by-side comparison

Comparison of 2.4 JTD / JTDm Multijet and 2.2 MultiJet / BlueHDi (Stellantis)
Item	2.4 JTD / JTDm Multijet	2.2 MultiJet / BlueHDi (Stellantis)
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,387 cm³	—
Timing	Timing belt (dry)	Timing belt (dry)
Power	136–210 hp	120–180 hp
Production	1998–2011^{[1][8][9][10][11]}	since 2019^{[12][13][14][15]}
Reliability
Risk index (what is it?)	25Moderate risk	14Low risk
Documented faults	4	2
Of high or critical severity	0	1
Worst severity	Medium severity	High severity
Main faults	Medium severity: Intake manifold flap failure (swirl flaps) Medium severity: Clogged or faulty EGR valve on the 2.4 JTD and JTDm Medium severity: Injector failure and diesel leaks on the 2.4 JTDm	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	up to €800Clogged or faulty EGR valve on the 2.4 JTD and JTDmPublished figure^[16]	No reliable data
Which versions to buy
BuyRecommended versions	2.4 JTD 10V (136-150 hp, 1998-2007)^[1][9][17]	None
With cautionVersions to be cautious about	2.4 JTDm / Multijet 20V (175-185 hp, 2003-2009)^[1][17] 2.4 JTDm / Multijet 20V 200 hp (2005-2011)^[1][2] 2.4 JTDm 20V 210 hp (Alfa Romeo, 2007-2010)^{[1][2][18][19]}	2.2 BlueHDi 120/140/165 (DW12 RU, Euro 6d, Boxer and Jumper 2019-2023, Movano C 2021-2023)^{[4][20][21][22]} 2.2 Multijet 3 H3-Power 120/140/160/180 (Ducato, Euro 6d-Final, 2021-2023)^[3][23][24] 2.2 Multijet Euro 6e 120/140/160/180 (Ducato, Boxer, Jumper, Movano C and Proace Max, 2024 onwards)^[5][6][7]
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

2.4 JTD / JTDm Multijet

See the 7 models with the 2.4 JTD / JTDm Multijet

2.2 MultiJet / BlueHDi (Stellantis)

Other comparisons

With the 2.4 JTD / JTDm Multijet

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.

Silnik 2.4 JTD: mocny i trwały, ale czasem też kapryśnyAuto Świat · Motoring press · published 26 September 2011 · consulted 8 October 2026 · in another language
Fiabilité Alfa-romeo 159 (2005-2012) (428 témoignages)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
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
Fiat JTD engineWikipedia · Other source · consulted 8 October 2026
Alfa Romeo Brera (guía del taller)The Alfa Workshop · Other source · consulted 8 October 2026
Alfa Romeo 159Wikipedia (alemán) · Other source · consulted 8 October 2026 · in German
SCHAEFFLER - ALFA ROMEO 159 (939_) 2.4 JTDM (939AXD)Rolling Kft. (catálogo) · Technical documentation · consulted 8 October 2026
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
¿Qué precio tiene cambiar una válvula EGR?RACE (Real Automóvil Club de España) · Other source · published 17 June 2024 · consulted 8 October 2026 · in Spanish
Fiabilité Alfa-romeo 156: pannes par motorisation (2.4 JTD)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Alfa Romeo 159 2.4 JTD 210 ch 93 000 km (2008, Ti): avis d'un propriétaireFiches-auto.fr · Owners' forum · published 26 January 2013 · consulted 8 October 2026 · in French
Guía de compra del Alfa Romeo 159 de segunda manoDiariomotor · Motoring press · published 9 February 2024 · consulted 8 October 2026 · in Spanish
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