Isuzu 2.5 / 3.0 / 1.9 Ddi vs 2.0 BlueHDi: which engine is more reliable?

According to our risk index, the Isuzu 2.5 / 3.0 / 1.9 Ddi carries less risk than the 2.0 BlueHDi: 43/100 versus 45/100 (both moderate risk). The Isuzu 2.5 / 3.0 / 1.9 Ddi has 2 documented serious faults, the main one being «Broken teeth on the camshaft gear (2017 campaign)»; the 2.0 BlueHDi has 2 documented serious faults, the main one being «DPF clogging on short journeys».

Risk index

Isuzu 2.5 / 3.0 / 1.9 Ddi

Moderate risk · 2 serious faults

Lower risk

Risk index

2.0 BlueHDi

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 2 November 202615 sources How we work

Is the Isuzu 2.5 / 3.0 / 1.9 Ddi reliable?

These are the diesels of the Isuzu D-Max: the 2.5 twin-turbo (4JK1) and the 1.9 Ddi (RZ4E) of the European range, and the 2.5 and 3.0 of the Latin American Chevrolet D-Max. Auto Express speaks of enviable reliability; what is documented is diesel in the oil of the 2.5 on short journeys, soot in the EGR and a 2017 campaign for the camshaft gear.^[1][2][3][4]

See the 3 of the Isuzu 2.5 / 3.0 / 1.9 Ddi faults

Is the 2.0 BlueHDi reliable?

The 2.0 BlueHDi is mechanically one of the sturdiest PSA/Stellantis diesels: in the samples available for its 150 to 180 hp versions, the turbo, DPF, EGR and injectors fail noticeably less often than on earlier generations of the same engine from before 2013. Its documented weak point is the AdBlue tank, a fault so widespread that Stellantis compensates affected owners without a definitive fix.^[5][6][7][8]

See the 4 of the 2.0 BlueHDi faults

Side-by-side comparison

Comparison of Isuzu 2.5 / 3.0 / 1.9 Ddi and 2.0 BlueHDi
Item	Isuzu 2.5 / 3.0 / 1.9 Ddi	2.0 BlueHDi
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	—	1,997 cm³
Timing	Gears	Timing belt (dry)
Power	117–177 hp	150–180 hp
Production	since 2012^{[4][9][10][11]}	2013–2021^[12][13][14]
Reliability
Risk index (what is it?)	43Moderate risk	45Moderate risk
Documented faults	3	4
Of high or critical severity	2	2
Worst severity	Critical severity	High severity
Main faults	Critical severity: Broken teeth on the camshaft gear (2017 campaign) High severity: Diesel in the oil and clogged particulate filter on short journeys Medium severity: EGR valve blocked by soot	Medium severity: AdBlue (SCR) tank and pump failure High severity: DPF clogging on short journeys High severity: Injector and high-pressure pump wear
Most expensive documented repair	No reliable data	up to €1,500AdBlue (SCR) tank and pump failurePublished figure^[7][8]
Which versions to buy
BuyRecommended versions	1.9 Ddi 163 hp (RZ4E, European D-Max from 2017)^[1][4]	None
With cautionVersions to be cautious about	2.5 TD twin-turbo 163 hp (4JK1, European D-Max 2012-2017)^[2][4] 2.5 and 3.0 TD (4JK1 and 4JJ1, Latin American Chevrolet D-Max 2012-2020)^[3][15]	2.0 BlueHDi 150/163 (DW10FC/DW10FD, 2013-2020)^[5][7][8] 2.0 BlueHDi 177/180 (DW10FC/DW10FD, 2013-2021)^[5][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

Isuzu 2.5 / 3.0 / 1.9 Ddi

2.0 BlueHDi

See the 13 models with the 2.0 BlueHDi

Other comparisons

With the Isuzu 2.5 / 3.0 / 1.9 Ddi

With the 2.0 BlueHDi

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Sources

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

Isuzu D-Max reviewAuto Express · Motoring press · published 16 October 2026 · consulted 2 November 2026
Tips for buying a second-hand pickup: Isuzu D-MaxFarmers Weekly · Motoring press · published 17 December 2020 · consulted 2 November 2026
Isuzu MU-X & D-Max common problems and solutionsUnsealed 4X4 · Motoring press · published 12 June 2026 · consulted 2 November 2026
Isuzu D-Max: Camshaft Gear Teeth May Break (R/2017/194)Car-Recalls.co.uk (reproduce DVSA) · Other source · published 10 July 2017 · consulted 2 November 2026
Fiabilité du 2.0 HDIFiches-Auto · Motoring press · consulted 27 September 2026 · in French
Fiabilité Opel Grandland X (2017-2024), pannes et témoignagesFiches-Auto · Motoring press · consulted 27 September 2026 · in French
AdBlue : problèmes en pagailleFiches-Auto · Motoring press · consulted 27 September 2026 · in French
Stellantis amplía las compensaciones por los problemas técnicos de sus depósitos AdBlueMinisterio de Derechos Sociales, Consumo y Agenda 2030 · Official body · consulted 27 September 2026 · in Spanish
Isuzu D-MaxWikipedia (inglés) · Other source · consulted 2 November 2026
Isuzu D-MAX 2. Generation (2012-2017): Modelle, Technische DatenADAC Autokatalog · Technical documentation · consulted 2 November 2026 · in German
Isuzu D-MAX 2. Generation, 1. Facelift (2017-2020): Modelle, Technische DatenADAC Autokatalog · Technical documentation · consulted 2 November 2026 · in German
PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
Peugeot 308Wikipedia (inglés) · Other source · consulted 27 September 2026
Peugeot 308 5p GT 2.0 BlueHDi 180 S&S EAT8 (2017-2019) | Precio y ficha técnicakm77 · Motoring press · consulted 27 September 2026 · in Spanish
Isuzu D-Max ProblemsCarsGuide · Motoring press · consulted 2 November 2026