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0.9 TCe vs 1.2 16v: which engine is more reliable?

According to our risk index, the 1.2 16v carries less risk than the 0.9 TCe: 36/100 versus 49/100 (both moderate risk). The 0.9 TCe has 3 documented serious faults, the main one being «Coolant leak at the thermostat housing»; the 1.2 16v has 1 documented serious fault, the main one being «Damaged head gasket and coolant loss».

Risk index

0.9 TCe

49

Moderate risk · 3 serious faults

Risk index

1.2 16v

36

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

17 sourcesHow we work

Is the 0.9 TCe reliable?

The 0.9 TCe (H4Bt) is a three-cylinder turbo with a good reliability reputation, better than that of its sibling the 1.2 TCe: it does not share the same oil consumption or the same rate of chain problems. Its most-cited weak point is a coolant leak at the thermostat housing, which if ignored can end up damaging the head gasket; chain, turbo and lambda sensor cases appear less often.[1][2]

See the 5 of the 0.9 TCe faults

Is the 1.2 16v reliable?

The 1.2 16v (D4F) and its 8-valve predecessor, the D7F, are simple naturally aspirated engines, used for over two decades as the entry-level option in Renault and Dacia cars, with a reputation for reliability: the reliability pages consulted document no catastrophic failures and no oil consumption. The most-cited problems are ignition coils and sensors and, on higher-mileage cars, the head gasket.[3][4][5][6]

See the 5 of the 1.2 16v faults

Side-by-side comparison

Comparison of 0.9 TCe and 1.2 16v
0.9 TCe1.2 16v
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement898 cm³1,149 cm³
TimingChainTiming belt (dry)
Power90 hp60–76 hp
Production2012–2024[1][2][7][8][9]2001–2020[10][11][12][13]
Reliability
Risk index (what is it?)49Moderate risk36Moderate risk
Documented faults55
Of high or critical severity31
Worst severityCritical severityHigh severity
Main faults
  1. High severity: Coolant leak at the thermostat housing
  2. Critical severity: Timing chain or tensioner failure
  3. High severity: Turbocharger wear or failure
  1. High severity: Damaged head gasket and coolant loss
  2. Medium severity: Ignition coil failure (misfires, engine warning light)
  3. Medium severity: Probe and sensor faults (crankshaft position, throttle body)
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNone
With cautionVersions to be cautious about
  • 0.9 TCe 90 (H4Bt, 2012-2024)[1][2]
None
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

Other comparisons

With the 0.9 TCe

With the 1.2 16v

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Sources

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

  1. Fiabilité des 0.9 TCeFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  2. Moteur H Renault-NissanWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  3. Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  4. Fiabilité et pannes de la Renault Clio 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiabilité et pannes du Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Maxi-fiche fiabilité : la Renault Twingo 2Caradisiac · Motoring press · consulted 27 September 2026 · in French
  7. Mercedes-Benz M281 engineWikipedia (inglés) · Other source · consulted 27 September 2026
  8. Renault ClioWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  9. Dacia SanderoWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  10. Moteur D RenaultWikipédia (francés) · Other source · consulted 27 September 2026 · in French
  11. Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  12. Renault TwingoWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  13. Renault Clio IIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  14. Fiabilité et pannes de la Renault KangooFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  15. Fiabilité et pannes du Dacia LoganFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  16. Fiabilité et pannes du Dacia SanderoFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  17. Fiabilité et pannes du Dacia Logan 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French