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1.6 THP vs 1.0 TCe / SCe: which engine is more reliable?

According to our risk index, the 1.0 TCe / SCe carries less risk than the 1.6 THP: 41/100 (moderate risk) versus 64/100 (high risk). The 1.6 THP has 2 documented serious faults, the main one being «Timing chain and tensioner stretch (turbo versions, before 2012)»; the 1.0 TCe / SCe has 1 documented serious fault, the main one being «LPG (ECO-G) system faults and tank recall».

Risk index

1.6 THP

64

High risk · 2 serious faults

Risk index

1.0 TCe / SCe

41

Moderate risk · 1 serious fault

Lower risk

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

14 sourcesHow we work

Is the 1.6 THP reliable?

The 1.6 THP turbo and its naturally aspirated sibling, the 1.6 VTi, make up the Prince family, developed together with BMW and also used by MINI: they do not have a reputation for reliability. Turbo versions built before 2012 carry a known problem of timing chain stretch, and the whole block shares a water pump described as fragile; the turbo versions add oil consumption and high-pressure fuel pump failures.[1][2][3][4]

See the 5 of the 1.6 THP faults

Is the 1.0 TCe / SCe reliable?

The 1.0 TCe/SCe (H4D/H4Dt) is a simply designed three-cylinder with reasonable reliability. Its most-cited fault is a noise or vibration from the turbo wastegate; the ECO-G (LPG) version adds its own gas-management faults and a 2023 recall over a risk of leaks and fire from the tank. An isolated case of a failed high-pressure pump is also documented, and no oil consumption pattern.[5][6][7]

See the 4 of the 1.0 TCe / SCe faults

Side-by-side comparison

Comparison of 1.6 THP and 1.0 TCe / SCe
1.6 THP1.0 TCe / SCe
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,598 cm³999 cm³
TimingChainChain
Power120–270 hp65–117 hp
Production2006–2018[1][8][9]since 2019[10][11]
Reliability
Risk index (what is it?)64High risk41Moderate risk
Documented faults54
Of high or critical severity21
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: Timing chain and tensioner stretch (turbo versions, before 2012)
  2. High severity: Fragile water pump and heat exchanger
  3. Medium severity: High-pressure fuel pump (HPFP) failure on the turbo versions
  1. Critical severity: LPG (ECO-G) system faults and tank recall
  2. Medium severity: Metallic noise or vibration from the turbo wastegate
  3. Medium severity: Failed high-pressure fuel pump (isolated case)
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNone
  • 1.0 SCe 65/75 (H4D, 2019-present)[5][12]
With cautionVersions to be cautious about
  • 1.6 VTi 120 / 1.6 16v (EP6/EP6C, N12/N16, naturally aspirated)[4]
  • 1.6 THP medium output (EP6DT/EP6DTS/EP6CDT, N14/N18; 140-190 hp)[2][3][13]
  • 1.6 THP high performance (EP6CDXD/EP6FDTR/EP6CDTR, John Cooper Works N14/N18; 200-270 hp)[2][3][4]
  • 1.0 TCe 90/100 (H4Dt, 2019-present)[5][12]
  • 1.0 TCe 110 (H4Dt, 2021-present)[14]
  • 1.0 ECO-G 100 (H4Dt + LPG, 2020-present)[5][6][14]
  • 1.0 DIG-T / IG-T 100-117 (HR10DDT, Nissan, 2017-present)[7]
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 THP

See the 16 models with the 1.6 THP

1.0 TCe / SCe

See the 7 models with the 1.0 TCe / SCe

Other comparisons

With the 1.6 THP

With the 1.0 TCe / SCe

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. Prince engineWikipedia (inglés) · Other source · consulted 27 September 2026
  2. Distribution : les moteurs à problèmesFiches-auto.fr · Motoring press · published April 2025 · consulted 27 September 2026 · in French
  3. Moteurs essence qui consomment de l'huileFiches-auto.fr · Motoring press · published April 2024 · consulted 27 September 2026 · in French
  4. Liste des moteurs qui ont des soucis de refroidissementFiches-auto.fr · Motoring press · published April 2025 · consulted 27 September 2026 · in French
  5. Fiabilité et pannes du Dacia Sandero 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Dacia et Renault – nouveau rappel : fuite du réservoir GPL, risque d'incendie !Motorsactu · Motoring press · published 12 November 2023 · consulted 27 September 2026 · in French
  7. Fiabilité et pannes du Nissan Juke 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  8. Peugeot 308Wikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  9. Peugeot RCZWikipedia (inglés) · Other source · consulted 27 September 2026
  10. Moteur H Renault-NissanWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  11. Nissan JukeWikipedia (inglés) · Other source · consulted 27 September 2026
  12. Fiabilité et pannes de la Renault Clio 5Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  13. BMW Recalls Fuel Pumps. Mini Does NotMotoringFile · Motoring press · published 27 October 2010 · consulted 27 September 2026
  14. Fiabilité et pannes du Dacia JoggerFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French