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0.8 / 1.0 / 1.2 S-TEC vs 2.0 FSI: which engine is more reliable?

According to our risk index, the 0.8 / 1.0 / 1.2 S-TEC carries less risk than the 2.0 FSI: 18/100 (low risk) versus 34/100 (moderate risk). The 0.8 / 1.0 / 1.2 S-TEC has no documented serious faults; the 2.0 FSI has no documented serious faults.

Risk index

0.8 / 1.0 / 1.2 S-TEC

18

Low risk · 0 serious faults

Lower risk

Risk index

2.0 FSI

34

Moderate risk · 0 serious faults

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

21 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 2.0 FSI reliable?

The 2.0 FSI is the naturally aspirated version with which the Volkswagen Group introduced petrol direct injection in a two-litre engine, before moving on to the turbocharged 2.0 TSI. Two faults recur across several models: carbon build-up on the intake valves, inherent to direct injection, and ignition coil failure, documented from 5,000 km in one case. Gebrauchtwagenberater.de nevertheless counts it among the most reliable petrol engines in the Audi A4 B7.[4][5][6][7]

See the 3 of the 2.0 FSI faults

Side-by-side comparison

Comparison of 0.8 / 1.0 / 1.2 S-TEC and 2.0 FSI
0.8 / 1.0 / 1.2 S-TEC2.0 FSI
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement—1,984 cm³
TimingTiming belt (dry)Timing belt (dry)
Power52–84 hp150 hp
Production2002–2022[8][9][10][11][12]2003–2009[13][14][15]
Reliability
Risk index (what is it?)18Low risk34Moderate risk
Documented faults23
Of high or critical severity00
Worst severityMedium severityMedium 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. Medium severity: Carbon build-up on the intake valves
  2. Medium severity: Ignition coil failure
  3. Low severity: Blocked EGR valve
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)[16][17]
  • 1.0 and 1.2 S-TEC II DOHC 16v (Spark M300, Beat and Sail, 2010-2022)[2][3]
None
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)[18][19][20]
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 2.0 FSI

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. Audi A3 8P: Typische Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
  5. VW Passat B6 – Bekannte Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
  6. Audi A4 B7 (8E) – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
  7. Fiabilité Volkswagen Golf V - pannes moteur, boîte, électronique...Fiches-auto.fr · Owners' forum · 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. Volkswagen Golf Mk5Wikipedia (inglés) · Other source · consulted 27 September 2026
  14. Volkswagen TouranWikipedia (inglés) · Other source · consulted 27 September 2026
  15. VW Passat B6Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  16. 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
  17. Używany Chevrolet Aveo T200/T250 - typowe awarie i problemyWP Autokult · Motoring press · published 28 January 2012 · consulted 2 November 2026 · in another language
  18. Chevrolet SailWikipedia (español) · Other source · consulted 2 November 2026 · in Spanish
  19. Chevrolet Sail: conócelo en detalleAutocosmos Chile · Motoring press · published 3 November 2010 · consulted 2 November 2026 · in Spanish
  20. Lanzamiento Chevrolet SailAutoblog Uruguay · Motoring press · published May 2013 · consulted 2 November 2026 · in Spanish
  21. Fiabilité Volkswagen Passat - pannes moteur, boîte, électronique...Fiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French