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

According to our risk index, the 2.2 JTDm Multijet II carries less risk than the 1.3 Multijet: 36/100 (moderate risk) versus 64/100 (high risk). The 1.3 Multijet has 4 documented serious faults, the main one being «Timing chain stretch and tensioner failure»; the 2.2 JTDm Multijet II has 2 documented serious faults, the main one being «Diesel leak from the fuel filter gasket».

Risk index

1.3 Multijet

High risk · 4 serious faults

Risk index

2.2 JTDm Multijet II

Moderate risk · 2 serious faults

Lower risk

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 1.3 Multijet reliable?

The 1.3 Multijet is a reliable diesel in the basics, but it has a known weak point across all its brands: the timing chain and its tensioner can stretch or fail if oil changes are neglected, with a risk of serious damage. In urban use, the EGR valve, the particulate filter and the variable-geometry turbo add to the list.^[1][2][3][4]

See the 5 of the 1.3 Multijet faults

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).^{[5][6][7][8][9][10]}

See the 4 of the 2.2 JTDm Multijet II faults

Side-by-side comparison

Comparison of 1.3 Multijet and 2.2 JTDm Multijet II
Item	1.3 Multijet	2.2 JTDm Multijet II
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,248 cm³	2,143 cm³
Timing	Chain	Timing belt (dry)
Power	69–105 hp	136–210 hp
Production	2003–2024^[11][12][13]	since 2016^{[14][15][16][17][18]}
Reliability
Risk index (what is it?)	64High risk	36Moderate risk
Documented faults	5	4
Of high or critical severity	4	2
Worst severity	Critical severity	High severity
Main faults	Critical severity: Timing chain stretch and tensioner failure High severity: Incomplete particulate filter regenerations and oil dilution High severity: Seized variable-geometry turbo	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
Most expensive documented repair	up to €1,200Injector and high-pressure pump wear from contaminated fuelPublished figure^[3]	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.3 Multijet 8v (69-105 hp, 2003-2009)^[1][2][3] 1.3 Multijet II 16v Euro 5 (75-95 hp, 2009-2015)^[2][4] 1.3 Multijet II 16v Euro 6 (95 hp, 2015-2020)^[2][4]	2.2 JTDm Euro 6 (136-210 hp, 2016-2019)^{[5][7][8][9][10]} 2.2 JTDm Euro 6d with AdBlue (136-210 hp, 2019 onwards)^[6]
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

1.3 Multijet

See the 20 models with the 1.3 Multijet

2.2 JTDm Multijet II

Other comparisons

With the 1.3 Multijet

With the 2.2 JTDm Multijet II

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Sources

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

Fiat 1.3 Multijet: ficha técnica, problemas y tuningMotordinámico · Other source · consulted 26 September 2026 · in Spanish
1.3 CDTi Opel (Z13DT) Multijet: ficha técnica, problemas y tuningMotordinámico · Other source · consulted 26 September 2026 · in Spanish
Fiat 1.3 Multijet: problemas, fallos y averías más frecuentesTotalrenting · Other source · consulted 26 September 2026 · in Spanish
Fiat 1.3 JTD/Multijet: corrente folgada e entupimento dos canais de lubrificaçãoProvmec · Technical documentation · consulted 26 September 2026 · in Portuguese
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
Fiat JTD engineWikipedia · Other source · consulted 26 September 2026
Moteur Fiat 1.3 MultiJetWikipédia · Other source · consulted 26 September 2026 · in French
Motor Fiat 1.3 JTD 16v: más información sobre el motorkm77 · Technical documentation · published September 2002 · consulted 26 September 2026 · in Spanish
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