1.4 HDi vs 2.0 BlueHDi: which engine is more reliable?

According to our risk index, the 1.4 HDi carries less risk than the 2.0 BlueHDi: 43/100 versus 45/100 (both moderate risk). The 1.4 HDi has 1 documented serious fault, the main one being «Timing belt and water pump»; the 2.0 BlueHDi has 2 documented serious faults, the main one being «DPF clogging on short journeys».

Risk index

1.4 HDi

Moderate risk · 1 serious fault

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 27 September 202613 sources How we work

Is the 1.4 HDi reliable?

It is a small diesel that is generally reliable, but with a very well-documented weakness: the injectors tend to lose their seal over time and let diesel escape. The turbo and the EGR valve also fail on a noticeable minority of units, and there are isolated cases of the crankshaft damper pulley failing at very high mileages. The timing belt does not seem to cause more problems than on any diesel of its era if it is changed on time.^[1][2][3]

See the 5 of the 1.4 HDi 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.^[4][5][6][7]

See the 4 of the 2.0 BlueHDi faults

Side-by-side comparison

Comparison of 1.4 HDi and 2.0 BlueHDi
Item	1.4 HDi	2.0 BlueHDi
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,399 cm³	1,997 cm³
Timing	Timing belt (dry)	Timing belt (dry)
Power	54–92 hp	150–180 hp
Production	2001–2010^{[1][8][9][10]}	2013–2021^[11][12][13]
Reliability
Risk index (what is it?)	43Moderate risk	45Moderate risk
Documented faults	5	4
Of high or critical severity	1	2
Worst severity	High severity	High severity
Main faults	Medium severity: Injectors that lose their seal and let diesel escape High severity: Timing belt and water pump Medium severity: Premature turbo wear from poor lubrication	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^[6][7]
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.4 HDi/TDCi 54/68/70 8V (DV4TD, 2001-2009)^[2][3] 1.4 HDi 90/92 16V (DV4TED4, 2002-2009)^[2][10]	2.0 BlueHDi 150/163 (DW10FC/DW10FD, 2013-2020)^[4][6][7] 2.0 BlueHDi 177/180 (DW10FC/DW10FD, 2013-2021)^[4][5]
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

1.4 HDi

See the 12 models with the 1.4 HDi

2.0 BlueHDi

See the 13 models with the 2.0 BlueHDi

Other comparisons

With the 1.4 HDi

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.

Motor PSA DVWikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
Essai, avis et fiabilité des 1.4 HDI 68 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
Essai, avis et fiabilité des 1.4 HDI 70 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
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
Ford Duratorq engineWikipedia (en) · Other source · consulted 27 September 2026
Peugeot DV4TD engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
Peugeot DV4TED4 engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
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