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1.6 CRDi vs 2.0 CRDi (D4EA): which engine is more reliable?

According to our risk index, the 2.0 CRDi (D4EA) carries less risk than the 1.6 CRDi: 32/100 (moderate risk) versus 70/100 (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 2.0 CRDi (D4EA) has 2 documented serious faults, the main one being «Wear and loss of performance of the variable-geometry turbo».

Risk index

1.6 CRDi

70

High risk · 4 serious faults

Risk index

2.0 CRDi (D4EA)

32

Moderate 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

17 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 2.0 CRDi (D4EA) reliable?

The D4EA is the 2.0 CRDi diesel with which Hyundai and Kia made the jump to common rail in the Tucson I, the Santa Fe, the Trajet, the Elantra, the Sportage II, the Carens II and the Cerato. There is no serious documented design fault: the points to watch are the turbo, the injectors and the EGR, typical of any diesel of its generation used mainly in town, and a timing belt (dry, not a chain) that is best not stretched beyond 120,000 km.[4][5]

See the 4 of the 2.0 CRDi (D4EA) faults

Side-by-side comparison

Comparison of 1.6 CRDi and 2.0 CRDi (D4EA)
1.6 CRDi2.0 CRDi (D4EA)
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,582 cm³1,991 cm³
TimingChainTiming belt (dry)
Power90–136 hp112–150 hp
Productionsince 2009[1][6][7][8]2001–2010[4][9][10][11][12]
Reliability
Risk index (what is it?)70High risk32Moderate risk
Documented faults64
Of high or critical severity42
Worst severityCritical severityHigh 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. High severity: Wear and loss of performance of the variable-geometry turbo
  2. Medium severity: Carbon build-up in the common-rail injectors with town driving
  3. Medium severity: EGR valve clogged with carbon with town driving
Most expensive documented repairup to €1,800Particulate filter (DPF) blocked in urban usePublished figure[13]No reliable data
Which versions to buy
BuyRecommended versions
  • Smartstream 1.6 CRDi U3 (D4FE, 115-136 hp, without mild hybrid, from 2018)[2][14]
None
With cautionVersions to be cautious about
  • 1.6 CRDi U2 (D4FB, 90-136 hp, sold in Spain from 2010 to ~2018)[1][15][16]
  • Smartstream 1.6 CRDi 48V mild hybrid (D4FE MHEV, 136 hp, from ~2019)[3][17]
  • 2.0 CRDi (D4EA, 112-150 hp, 2001-2010)[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 16 models with the 1.6 CRDi

2.0 CRDi (D4EA)

See the 8 models with the 2.0 CRDi (D4EA)

Other comparisons

With the 1.6 CRDi

With the 2.0 CRDi (D4EA)

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. 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. Hyundai D engineWikipedia · Other source · consulted 27 September 2026
  5. Hyundai Tucson I: Typische Probleme & KrankheitenGebrauchtwagenberater · Motoring press · published 8 May 2025 · consulted 27 September 2026 · in German
  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. Hyundai TucsonWikipedia · Other source · consulted 27 September 2026
  10. Kia SportageWikipedia · Other source · consulted 27 September 2026
  11. Which Cars Have a Wet Belt? Full UK Engine List (2026)CarOkay · Other source · published 2026 · consulted 27 September 2026
  12. Kia Sportage 2.0 CRDi VGT LX 4x2 (2006-2007) | Datoskm77 · Motoring press · consulted 27 September 2026 · in Spanish
  13. Kia Ceed 1.6 Crdi Problemas | Fallos y averías más frecuentesTotalRenting · Other source · consulted 26 September 2026 · in Spanish
  14. Kia Ceed im TÜV-Check 2026: Schwachstellen, Mängel und ProblemeAUTO BILD · Motoring press · published 2026 · consulted 26 September 2026 · in German
  15. Kia and Hyundai 1.6 CRDI (D4FB) engineEngineDNA · Other source · consulted 26 September 2026
  16. Best Hyundai Kia 1.6 CRDI Mods & Upgrades Guide to D4FB TuningTorqueCars · Other source · consulted 26 September 2026
  17. KIA SPORTAGE 2023 - vehicle recallsGOV.UK (Driver and Vehicle Standards Agency) · Official body · consulted 26 September 2026