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2.4 JTD / JTDm Multijet vs 2.2 HDi: which engine is more reliable?

According to our risk index, the 2.4 JTD / JTDm Multijet carries less risk than the 2.2 HDi: 25/100 versus 48/100 (both moderate risk). The 2.4 JTD / JTDm Multijet has no documented serious faults; the 2.2 HDi has 3 documented serious faults, the main one being «DPF clogging with additive, especially on the 128-138 hp version».

Risk index

2.4 JTD / JTDm Multijet

25

Moderate risk · 0 serious faults

Lower risk

Risk index

2.2 HDi

48

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

19 sourcesHow 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 HDi reliable?

This is a diesel derived from the 2.0 HDi that PSA and Ford shared in large saloons and MPVs (407, 607, 807, C5, C6, C8) and that Land Rover and Ford used under their own names (TDCi, TD4, SD4) in the Mondeo IV, the Freelander 2 and the first Evoque. According to fiches-auto it does not suffer chronically from the turbo or dual-mass flywheel problems of smaller HDi engines, but the 128-138 hp version does have a recurring problem of DPF clogging.[3][4][5][6]

See the 4 of the 2.2 HDi faults

Side-by-side comparison

Comparison of 2.4 JTD / JTDm Multijet and 2.2 HDi
2.4 JTD / JTDm Multijet2.2 HDi
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement2,387 cm³2,179 cm³
TimingTiming belt (dry)Timing belt (dry)
Power136–210 hp128–204 hp
Production1998–2011[1][7][8][9][10]2000–2015[3][5][11][12][13]
Reliability
Risk index (what is it?)25Moderate risk48Moderate risk
Documented faults44
Of high or critical severity03
Worst severityMedium severityHigh severity
Main faults
  1. Medium severity: Intake manifold flap failure (swirl flaps)
  2. Medium severity: Clogged or faulty EGR valve on the 2.4 JTD and JTDm
  3. Medium severity: Injector failure and diesel leaks on the 2.4 JTDm
  1. High severity: DPF clogging with additive, especially on the 128-138 hp version
  2. High severity: Turbo faults, somewhat more frequent on the sequential twin-turbo versions
  3. High severity: Piezo injector wear and failure
Most expensive documented repairup to €800Clogged or faulty EGR valve on the 2.4 JTD and JTDmPublished figure[14]No reliable data
Which versions to buy
BuyRecommended versions
  • 2.2 HDi 150-156 (single variable-geometry turbo, 2006-2012)[16][17]
With cautionVersions to be cautious about
  • 2.4 JTDm / Multijet 20V (175-185 hp, 2003-2009)[1][15]
  • 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 HDi 128-138 (DW12 TED4, single turbo, 2000-2006)[6]
  • 2.2 HDi 170-175 twin-turbo (DW12 BTED4, 2005-2010)[6][12]
  • 2.2 HDi 190-204 twin-turbo (DW12 C, 2010-2015)[12]
AvoidVersions to avoidNoneNone

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 HDi

See the 13 models with the 2.2 HDi

Other comparisons

With the 2.4 JTD / JTDm Multijet

With the 2.2 HDi

Compare other engines

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Sources

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

  1. 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
  2. Fiabilité Alfa-romeo 159 (2005-2012) (428 témoignages)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
  3. PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
  4. Ford MondeoWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  5. Land Rover FreelanderWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  6. Essai, avis et fiabilité des 2,2 HDI 136 chevauxFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  7. Fiat JTD engineWikipedia · Other source · consulted 8 October 2026
  8. Alfa Romeo Brera (guía del taller)The Alfa Workshop · Other source · consulted 8 October 2026
  9. Alfa Romeo 159Wikipedia (alemán) · Other source · consulted 8 October 2026 · in German
  10. SCHAEFFLER - ALFA ROMEO 159 (939_) 2.4 JTDM (939AXD)Rolling Kft. (catálogo) · Technical documentation · consulted 8 October 2026
  11. Range Rover EvoqueWikipedia (inglés) · Other source · consulted 27 September 2026
  12. Essai, avis et fiabilité des 2,2 HDI 204 chevauxFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  13. Essai Citroën C5 Exclusive + 2.2 HDI 200 TourerActu Automobile · Motoring press · published 2011 · consulted 27 September 2026 · in French
  14. ¿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
  15. Fiabilité Alfa-romeo 156: pannes par motorisation (2.4 JTD)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
  16. Essai Peugeot 4007 2.2 HDi DCS 6Caradisiac · Motoring press · published 7 April 2010 · consulted 27 September 2026 · in French
  17. Citroën C-CrosserWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  18. 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
  19. Guía de compra del Alfa Romeo 159 de segunda manoDiariomotor · Motoring press · published 9 February 2024 · consulted 8 October 2026 · in Spanish