2.2 JTDm Multijet II vs BMW B47: which engine is more reliable?

According to our risk index, the 2.2 JTDm Multijet II carries less risk than the BMW B47: 36/100 (moderate risk) versus 73/100 (high risk). The 2.2 JTDm Multijet II has 2 documented serious faults, the main one being «Diesel leak from the fuel filter gasket»; the BMW B47 has 3 documented serious faults, the main one being «EGR cooler leaks with risk of engine fire».

Risk index

2.2 JTDm Multijet II

Moderate risk · 2 serious faults

Lower risk

Risk index

BMW B47

High 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 202615 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 BMW B47 reliable?

The BMW B47 (since 2014, successor to the N47) improves the timing chain tensioner, guides and oil supply and greatly reduces the failure rate of its predecessor, but it is not free of problems: the EGR cooler has been the subject of several BMW technical campaigns for engine fire risk since 2018, and the turbo and particulate filter need careful maintenance.^{[7][8][9][10]}

See the 4 of the BMW B47 faults

Side-by-side comparison

Comparison of 2.2 JTDm Multijet II and BMW B47
Item	2.2 JTDm Multijet II	BMW B47
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	2,143 cm³	1,995 cm³
Timing	Timing belt (dry)	Chain
Power	136–210 hp	114–228 hp
Production	since 2016^{[11][12][13][14][15]}	since 2014^[7]
Reliability
Risk index (what is it?)	36Moderate risk	73High risk
Documented faults	4	4
Of high or critical severity	2	3
Worst severity	High severity	Critical 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	Critical severity: EGR cooler leaks with risk of engine fire High severity: Timing chain wear (improved, but is it really at the front?) High severity: Premature turbo wear from neglected maintenance
Most expensive documented repair	No reliable data	up to €2,000Premature turbo wear from neglected maintenancePublished figure^[9]
Which versions to buy
BuyRecommended versions	None	None
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]	B47 114-150 hp, single turbo (2014-)^[8][10] B47 168-190 hp, single turbo (2014-)^[8][10] B47 202-228 hp, twin-turbo (2015-)^[8][10] B47C20 (MINI Cooper D/SD and Countryman, 2014-)^[7][10]
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

BMW B47

See the 19 models with the BMW B47

Other comparisons

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With the BMW B47

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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
BMW B47Wikipedia (inglés) · Other source · consulted 26 September 2026
324.000 diésel de BMW tendrán que pasar por el taller en Europa, por un posible riesgo de incendio en la EGRDiariomotor · Motoring press · published 8 August 2018 · consulted 26 September 2026 · in Spanish
Motor BMW B47: problemas, modelos y qué revisarCarexam · Motoring press · consulted 26 September 2026 · in Spanish
Motor BMW B47 - Reparación EspecializadaDasercars · Technical documentation · 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