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1.4 / 1.6 16v E-TEC II vs M271: which engine is more reliable?

According to our risk index, the 1.4 / 1.6 16v E-TEC II carries less risk than the M271: 19/100 (low risk) versus 59/100 (high risk). The 1.4 / 1.6 16v E-TEC II has no documented serious faults; the M271 has 1 documented serious fault, the main one being «Timing chain stretch and wear of the camshaft sprockets».

Risk index

1.4 / 1.6 16v E-TEC II

19

Low risk · 0 serious faults

Lower risk

Risk index

M271

59

High risk · 1 serious fault

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

12 sourcesHow we work

Is the 1.4 / 1.6 16v E-TEC II reliable?

The 1.4 and 1.6 16v GM Daewoo E-TEC II (first-generation Lacetti/Optra and Aveo) have a timing belt and, according to the Polish press, a moderate fault record. Documented issues are faulty valves in the first units (2004-2005), lambda sensor faults and a few cases of oil leaks or oil consumption.[1][2][3]

See the 3 of the 1.4 / 1.6 16v E-TEC II faults

Is the M271 reliable?

The M271 is the four-cylinder petrol engine Mercedes-Benz fitted from 2002 to 2015, first with a mechanical supercharger (Kompressor) and, from 2009, with a turbo in the EVO revision. It has one well-documented weak point across the range: the timing chain and the camshaft sprockets can wear prematurely, a problem a specialist source describes as persistent even after the EVO redesign.[4][5][6]

See the 4 of the M271 faults

Side-by-side comparison

Comparison of 1.4 / 1.6 16v E-TEC II and M271
1.4 / 1.6 16v E-TEC IIM271
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement—1,796 cm³
TimingTiming belt (dry)Chain
Power83–109 hp122–204 hp
Production2004–2011[7][8][9][10][11]2002–2015[5][6]
Reliability
Risk index (what is it?)19Low risk59High risk
Documented faults34
Of high or critical severity01
Worst severityMedium severityCritical severity
Main faults
  1. Medium severity: Faulty valves and ignition faults in the first units (2004-2005)
  2. Low severity: Lambda sensor faults
  3. Low severity: Oil consumption and oil leaks
  1. Critical severity: Timing chain stretch and wear of the camshaft sprockets
  2. Medium severity: Oil leaking from the camshaft adjuster solenoids into the wiring
  3. Medium severity: Crankcase ventilation hose under the supercharger: it cracks and lets in false air
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • 1.4 and 1.5 8v SOHC (Aveo, 2005-2011)[3][11]
None
With cautionVersions to be cautious about
  • 1.4 16v DOHC 95-101 hp (F14D4/L95, 2004-2011)[1][2][11]
  • 1.6 16v DOHC 103-109 hp (L91/LXT, 2004-2011)[2][11][12]
  • M271 Kompressor 1.6/1.8 (KE16/KE18)[4]
  • M271 EVO 1.8 turbo CGI (DE18 LA)[4]
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 1.4 / 1.6 16v E-TEC II

With the M271

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. Chevrolet Lacetti 1.4 16V - Niełatwo zdobyć zaufanieAuto Świat · Motoring press · published 19 November 2007 · consulted 2 November 2026 · in another language
  2. Bez fajerwerków - Chevrolet Lacetti (2003-2010)AutoCentrum.pl · Motoring press · published 7 April 2012 · consulted 2 November 2026 · in another language
  3. 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
  4. Mercedes M271: Typische Probleme und HaltbarkeitGebrauchtwagenberater · Motoring press · consulted 27 September 2026 · in German
  5. Mercedes-Benz M271 engineWikipedia · Other source · consulted 27 September 2026
  6. Mercedes-Benz M 271Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  7. GM Family 1 engineWikipedia · Other source · consulted 2 November 2026
  8. Chevrolet LacettiWikipedia · Other source · consulted 2 November 2026
  9. Chevrolet LacettiWikipedia (de) · Other source · consulted 2 November 2026 · in German
  10. Chevrolet Aveo (T200)Wikipedia · Other source · consulted 2 November 2026
  11. Używany Chevrolet Aveo T200/T250 - typowe awarie i problemyWP Autokult · Motoring press · published 28 January 2012 · consulted 2 November 2026 · in another language
  12. W pierwszych silnikach 1,6 l przecierały się zawory (Chevrolet Lacetti)AutoCentrum.pl (usterki) · Owners' forum · consulted 2 November 2026 · in another language