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0.8 / 1.0 / 1.2 S-TEC vs 1.2 16v: which engine is more reliable?

According to our risk index, the 0.8 / 1.0 / 1.2 S-TEC carries less risk than the 1.2 16v: 18/100 (low risk) versus 36/100 (moderate risk). The 0.8 / 1.0 / 1.2 S-TEC has no documented serious faults; the 1.2 16v has 1 documented serious fault, the main one being «Damaged head gasket and coolant loss».

Risk index

0.8 / 1.0 / 1.2 S-TEC

18

Low risk · 0 serious faults

Lower risk

Risk index

1.2 16v

36

Moderate risk · 1 serious fault

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

25 sourcesHow we work

Is the 0.8 / 1.0 / 1.2 S-TEC reliable?

The GM Daewoo S-TEC engines (0.8, 1.0 and 1.2 naturally aspirated, low power) power the Matiz, Spark, Aveo 1.2, Beat and Sail. The sources consulted document only minor and cheap faults, such as oil leaks and ignition faults on the Matiz, and we have found no structural engine fault.[1][2][3]

See the 2 of the 0.8 / 1.0 / 1.2 S-TEC 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.[4][5][6][7]

See the 5 of the 1.2 16v faults

Side-by-side comparison

Comparison of 0.8 / 1.0 / 1.2 S-TEC and 1.2 16v
0.8 / 1.0 / 1.2 S-TEC1.2 16v
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement—1,149 cm³
TimingTiming belt (dry)Timing belt (dry)
Power52–84 hp60–76 hp
Production2002–2022[8][9][10][11][12]2001–2020[13][14][15][16]
Reliability
Risk index (what is it?)18Low risk36Moderate risk
Documented faults25
Of high or critical severity01
Worst severityMedium severityHigh severity
Main faults
  1. Medium severity: Ignition system faults (high-tension leads and modules)
  2. Low severity: Oil leaks from the rocker cover and sump
  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 versions
  • 1.2 S-TEC and S-TEC II 72-84 hp (Aveo T200/T250, 2005-2011)[17][18]
  • 1.0 and 1.2 S-TEC II DOHC 16v (Spark M300, Beat and Sail, 2010-2022)[2][3]
With cautionVersions to be cautious about
  • 0.8 and 1.0 S-TEC SOHC (Matiz/Spark M200, 2005-2009)[1][12]
  • 1.4 S-TEC DOHC 16v 102 hp (LCU, Sail, 2010-2015)[23][24][25]
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 0.8 / 1.0 / 1.2 S-TEC

With the 1.2 16v

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. Czy warto kupić: używany Daewoo / FSO Matiz (od 1998 do 2008)AutoCentrum.pl · Motoring press · published 22 August 2013 · consulted 2 November 2026 · in another language
  2. Chevrolet Spark hatchback reviewAuto Express · Motoring press · published October 2013 · consulted 2 November 2026
  3. Fiabilité Chevrolet Spark (2009-2015): pannes, rappels et témoignagesFiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
  4. Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiabilité et pannes de la Renault Clio 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Fiabilité et pannes du Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. Maxi-fiche fiabilité : la Renault Twingo 2Caradisiac · Motoring press · consulted 27 September 2026 · in French
  8. Daewoo S-TEC engineWikipedia · Other source · consulted 2 November 2026
  9. Chevrolet SparkWikipedia · Other source · consulted 2 November 2026
  10. Chevrolet Aveo (T200)Wikipedia · Other source · consulted 2 November 2026
  11. Chevrolet AveoWikipedia (de) · Other source · consulted 2 November 2026 · in German
  12. Chevrolet MatizWikipedia (de) · Other source · consulted 2 November 2026 · in German
  13. Moteur D RenaultWikipédia (francés) · Other source · consulted 27 September 2026 · in French
  14. Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  15. Renault TwingoWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  16. Renault Clio IIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  17. Czy warto kupić: używany Chevrolet Aveo (od 2002 do 2011)AutoCentrum.pl · Motoring press · published 5 March 2013 · consulted 2 November 2026 · in another language
  18. Używany Chevrolet Aveo T200/T250 - typowe awarie i problemyWP Autokult · Motoring press · published 28 January 2012 · consulted 2 November 2026 · in another language
  19. Fiabilité et pannes de la Renault KangooFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  20. Fiabilité et pannes du Dacia LoganFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  21. Fiabilité et pannes du Dacia SanderoFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  22. Fiabilité et pannes du Dacia Logan 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  23. Chevrolet SailWikipedia (español) · Other source · consulted 2 November 2026 · in Spanish
  24. Chevrolet Sail: conócelo en detalleAutocosmos Chile · Motoring press · published 3 November 2010 · consulted 2 November 2026 · in Spanish
  25. Lanzamiento Chevrolet SailAutoblog Uruguay · Motoring press · published May 2013 · consulted 2 November 2026 · in Spanish