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1.6 CRDi vs 1.5 / 2.0 EcoBlue: which engine is more reliable?

According to our risk index, the 1.5 / 2.0 EcoBlue carries less risk than the 1.6 CRDi: 59/100 versus 70/100 (both high risk). The 1.6 CRDi has 4 documented serious faults, the main one being «MHSG belt tensioner and crankshaft pulley failure (48V mild hybrid)»; the 1.5 / 2.0 EcoBlue has 2 documented serious faults, the main one being «Degradation of the wet timing belt (2.0 EcoBlue)».

Risk index

1.6 CRDi

70

High risk · 4 serious faults

Risk index

1.5 / 2.0 EcoBlue

59

High 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

15 sourcesHow we work

Is the 1.6 CRDi reliable?

The U2 D4FB (2009-2018) is a generally robust diesel if well maintained, with known turbo failures in the early units and timing chain problems from 120,000-150,000 km. Its successor, the Smartstream (U3 D4FE, from 2018), has a good reputation, except in the 48V mild hybrid version, which has a belt tensioner and crankshaft pulley fault that can destroy the engine.[1][2][3]

See the 6 of the 1.6 CRDi faults

Is the 1.5 / 2.0 EcoBlue reliable?

EcoBlue has been Ford's diesel family since 2016, with two very different engines despite the shared name: the 2.0 (codenamed «Panther») debuted a wet timing belt (belt-in-oil) and a second wet belt for the oil pump, the same type of design that has caused problems on other Ford engines; the 1.5, by contrast, uses a conventional dry belt. The 2.0 powers vans, SUVs and large saloons; the 1.5 the smaller models.[4][5]

See the 3 of the 1.5 / 2.0 EcoBlue faults

Side-by-side comparison

Comparison of 1.6 CRDi and 1.5 / 2.0 EcoBlue
1.6 CRDi1.5 / 2.0 EcoBlue
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,582 cm³—
TimingChainWet belt (belt-in-oil)
Power90–136 hp85–213 hp
Productionsince 2009[1][6][7][8]since 2016[4][9]
Reliability
Risk index (what is it?)70High risk59High risk
Documented faults63
Of high or critical severity42
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: MHSG belt tensioner and crankshaft pulley failure (48V mild hybrid)
  2. Critical severity: Timing chain stretch
  3. High severity: Premature variable-geometry turbo (VGT) failure
  1. Critical severity: Degradation of the wet timing belt (2.0 EcoBlue)
  2. Critical severity: Wet oil pump belt (2.0 EcoBlue)
  3. Medium severity: Emissions system warnings (AdBlue/EGR) and injector wear
Most expensive documented repairup to €1,800Particulate filter (DPF) blocked in urban usePublished figure[10]No reliable data
Which versions to buy
BuyRecommended versions
  • Smartstream 1.6 CRDi U3 (D4FE, 115-136 hp, without mild hybrid, from 2018)[2][11]
  • 1.5 EcoBlue 85/95/100/120 (dry timing belt, since 2018)[5]
With cautionVersions to be cautious about
  • 1.6 CRDi U2 (D4FB, 90-136 hp, sold in Spain from 2010 to ~2018)[1][12][13]
  • Smartstream 1.6 CRDi 48V mild hybrid (D4FE MHEV, 136 hp, from ~2019)[3][14]
  • 2.0 EcoBlue single-turbo 105/130/150/170/190, with and without mild hybrid (since 2016)[5][15]
  • 2.0 EcoBlue twin-turbo 213 (Ranger and high-demand applications, since ~2019)[5]
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

1.6 CRDi

See the 17 models with the 1.6 CRDi

1.5 / 2.0 EcoBlue

See the 13 models with the 1.5 / 2.0 EcoBlue

Other comparisons

With the 1.6 CRDi

With the 1.5 / 2.0 EcoBlue

Compare other engines

That is the comparison you are viewing: change one of the two engines.

Sources

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

  1. Motor Kia y Hyundai 1.6 CRDI (D4FB): ficha tecnica, problemas y tuningMotordinámico · Technical documentation · consulted 26 September 2026 · in Spanish
  2. Kia Ceed III: Bekannte Probleme & RückrufeGebrauchtwagenberater · Other source · consulted 26 September 2026 · in German
  3. Kia / Hyundai 1.6 CRDi MHEV Engine FailuresDOHC (especialista en reconstrucción de motores) · Technical documentation · consulted 26 September 2026
  4. Ford EcoBlue engineWikipedia · Other source · consulted 27 September 2026
  5. Which Cars Have a Wet Belt? Full UK Engine List (2026)CarOkay · Other source · published 2026 · consulted 27 September 2026
  6. Hyundai U engineWikipedia · Other source · consulted 26 September 2026
  7. Hyundai Smartstream engineWikipedia · Other source · consulted 26 September 2026
  8. Hyundai i30 Kombi 1.6 CRDi 48V-Mildhybrid Trend (10/20-01/22): Technische Daten, Bilder, PreiseADAC · Technical documentation · consulted 26 September 2026 · in German
  9. Nuevo motor Ford 2.0 EcoBlue Diésel: más potente y ahorradorAutopista.es · Motoring press · published April 2016 · consulted 27 September 2026 · in Spanish
  10. Kia Ceed 1.6 Crdi Problemas | Fallos y averías más frecuentesTotalRenting · Other source · consulted 26 September 2026 · in Spanish
  11. Kia Ceed im TÜV-Check 2026: Schwachstellen, Mängel und ProblemeAUTO BILD · Motoring press · published 2026 · consulted 26 September 2026 · in German
  12. Kia and Hyundai 1.6 CRDI (D4FB) engineEngineDNA · Other source · consulted 26 September 2026
  13. Best Hyundai Kia 1.6 CRDI Mods & Upgrades Guide to D4FB TuningTorqueCars · Other source · consulted 26 September 2026
  14. KIA SPORTAGE 2023 - vehicle recallsGOV.UK (Driver and Vehicle Standards Agency) · Official body · consulted 26 September 2026
  15. Todos los coches afectados ya por problemas de motor a causa de correas de distribución en aceiteAutopista.es · Motoring press · published February 2025 · consulted 27 September 2026 · in Spanish