2.2 JTDm Multijet II vs 1.4 TDI: which engine is more reliable?

According to our risk index, the 2.2 JTDm Multijet II carries less risk than the 1.4 TDI: 36/100 versus 38/100 (both moderate risk). The 2.2 JTDm Multijet II has 2 documented serious faults, the main one being «Diesel leak from the fuel filter gasket»; the 1.4 TDI has 2 documented serious faults, the main one being «Timing belt and water pump».

Risk index

2.2 JTDm Multijet II

Moderate risk · 2 serious faults

Lower risk

Risk index

1.4 TDI

Moderate risk · 2 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 202618 sources How we work

Is the 2.2 JTDm Multijet II reliable?

Alfa Romeo's 2.2 diesel (Giulia and Stelvio) has a good reputation: a German guide rates it as very reliable and a 210 hp Stelvio covered 100,000 km in a test without any faults. The sources mainly record leaks and oil consumption, the odd particulate filter and EGR case, and two one-off campaigns: the fuel filter gasket (2018 Giulia) and the alternator cable next to the EGR pipe (2017-2018 Stelvio).^{[1][2][3][4][5][6]}

See the 4 of the 2.2 JTDm Multijet II faults

Is the 1.4 TDI reliable?

It depends on the generation. The unit-injector one (1999-2010) calls for watching the timing belt - which also drives the unit injector pumps - the water pump, the turbo and the EGR, with a DPF only on the last BlueMotion/Ecomotive versions. The later EA288 (2014-2019) is not singled out by dieselgate, which according to the sources consulted was limited to the EA189, but it shares the need to watch the belt, turbo, EGR and DPF.^[7][8][9]

See the 4 of the 1.4 TDI faults

Side-by-side comparison

Comparison of 2.2 JTDm Multijet II and 1.4 TDI
Item	2.2 JTDm Multijet II	1.4 TDI
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,143 cm³	1,422 cm³
Timing	Timing belt (dry)	Timing belt (dry)
Power	136–210 hp	69–90 hp
Production	since 2016^{[10][11][12][13][14]}	1999–2019^[8][9]
Reliability
Risk index (what is it?)	36Moderate risk	38Moderate risk
Documented faults	4	4
Of high or critical severity	2	2
Worst severity	High severity	High severity
Main faults	High severity: Diesel leak from the fuel filter gasket High severity: Alternator cable touching the exhaust gas recirculation pipe (fire risk) Medium severity: Engine oil leaks	High severity: Timing belt and water pump High severity: Failing turbo: loss of power, whistling or smoke Medium severity: Clogged particulate filter (DPF)
Most expensive documented repair	No reliable data	up to €2,000Clogged particulate filter (DPF)Published figure^[15]
Which versions to buy
BuyRecommended versions	None	1.4 TDI common rail EA288 (2014-2019)^[7][8]
With cautionVersions to be cautious about	2.2 JTDm Euro 6 (136-210 hp, 2016-2019)^{[1][3][4][5][6]} 2.2 JTDm Euro 6d with AdBlue (136-210 hp, 2019 onwards)^[2]	1.4 TDI unit injector, 3 cylinders (1999-2010)^[16][17][18]
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

2.2 JTDm Multijet II

1.4 TDI

See the 10 models with the 1.4 TDI

Other comparisons

With the 2.2 JTDm Multijet II

With the 1.4 TDI

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Sources

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

Alfa Romeo Stelvio Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 8 October 2026 · in German
Alfa Romeo Stelvio: opinia i test 100 tys. kmAuto Świat · Motoring press · published May 2024 · consulted 8 October 2026 · in another language
Fiabilité Alfa Romeo Stelvio, pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Fiabilité Alfa Romeo Giulia, pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
Alfa Romeo Giulia usata: pregi e difettiAlvolante · Motoring press · consulted 8 October 2026 · in Italian
Rappels Alfa Romeo StelvioFiches-auto.fr · Other source · consulted 8 October 2026 · in French
Escándalo de emisiones contaminantes de vehículos VolkswagenWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
VW EA288Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
List of discontinued Volkswagen Group diesel enginesWikipedia (inglés) · Other source · consulted 27 September 2026
Alfa Romeo Giulia (952)Wikipedia (en) · Other source · consulted 8 October 2026
Alfa Romeo StelvioWikipedia (en) · Other source · consulted 8 October 2026
Alfa Romeo Giulia (2016)Wikipedia (it) · Other source · consulted 8 October 2026 · in Italian
Alfa Romeo Stelvio: kits de correa de distribución (2.2 diésel)Alfa Workshop · Technical documentation · consulted 9 October 2026
Zahnriemenwechsel Alfa Romeo StelvioCarWiki.de · Other source · consulted 8 October 2026 · in German
Cuánto cuesta sustituir el filtro de partículas de un coche diéselDiariomotor · Motoring press · consulted 27 September 2026 · in Spanish
Bomba de agua del coche: la avería de más de 1.500 euros que arrastra la correa de distribuciónMotor16 · Motoring press · published 21 September 2026 · consulted 27 September 2026 · in Spanish
Cuánto cuesta válvula EGRDiariomotor · Motoring press · consulted 27 September 2026 · in Spanish
Cómo saber si el turbo está roto o a punto de romperseMotor.es · Motoring press · consulted 27 September 2026 · in Spanish