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1.4 / 1.6 16v E-TEC II vs M276: which engine is more reliable?

According to our risk index, the 1.4 / 1.6 16v E-TEC II carries less risk than the M276: 19/100 (low risk) versus 32/100 (moderate risk). The 1.4 / 1.6 16v E-TEC II has no documented serious faults; the M276 has 1 documented serious fault, the main one being «Chain tensioners with poor lubrication in the first M276s (2011-2014)».

Risk index

1.4 / 1.6 16v E-TEC II

19

Low risk · 0 serious faults

Lower risk

Risk index

M276

32

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

17 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 M276 reliable?

The M276 is the petrol V6 with direct injection and three chains that Mercedes-Benz built from 2010 to 2023, in 3.5 naturally aspirated, 3.0 twin-turbo and 3.5 twin-turbo versions. Its documented weak point is the lubrication of the chain tensioners in the first naturally aspirated series, up to around the end of 2014; the later ones are considered not very problematic, with intake carbon build-up as a high-mileage ailment.[4][5][6][7]

See the 3 of the M276 faults

Side-by-side comparison

Comparison of 1.4 / 1.6 16v E-TEC II and M276
1.4 / 1.6 16v E-TEC IIM276
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement——
TimingTiming belt (dry)Chain
Power83–109 hp252–401 hp
Production2004–2011[8][9][10][11][12]2010–2023[13][14]
Reliability
Risk index (what is it?)19Low risk32Moderate risk
Documented faults33
Of high or critical severity01
Worst severityMedium severityHigh 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. High severity: Chain tensioners with poor lubrication in the first M276s (2011-2014)
  2. Medium severity: Carbon build-up on the M276 intake valves (direct injection)
  3. Medium severity: Worn intake camshaft variator on the M276
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][12]
  • M276 DE30 LA 3.0 twin-turbo (2013-2023, 333-401 hp)[5][7]
  • M276 DE35 LA 3.5 twin-turbo (2014-2018, 333 hp)[4][5]
With cautionVersions to be cautious about
  • 1.4 16v DOHC 95-101 hp (F14D4/L95, 2004-2011)[1][2][12]
  • 1.6 16v DOHC 103-109 hp (L91/LXT, 2004-2011)[2][12][15]
  • M276 DE35 3.5 naturally aspirated (2010-2018, 252-306 hp)[4][6][16][17]
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 M276

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 E-Klasse W212, S212: Probleme und SchwachstellenGebrauchtwagenberater · Motoring press · consulted 2 November 2026 · in German
  5. Mercedes E-Klasse W213, S213 – Probleme & SchwachstellenGebrauchtwagenberater · Motoring press · published 18 December 2022 · consulted 2 November 2026 · in German
  6. Mercedes M276 timing chain rattle8020 Automotive · Technical documentation · published 11 January 2024 · consulted 2 November 2026
  7. The 4 Most Common Mercedes M276 Engine Problems8020 Automotive · Technical documentation · consulted 2 November 2026
  8. GM Family 1 engineWikipedia · Other source · consulted 2 November 2026
  9. Chevrolet LacettiWikipedia · Other source · consulted 2 November 2026
  10. Chevrolet LacettiWikipedia (de) · Other source · consulted 2 November 2026 · in German
  11. Chevrolet Aveo (T200)Wikipedia · Other source · consulted 2 November 2026
  12. Używany Chevrolet Aveo T200/T250 - typowe awarie i problemyWP Autokult · Motoring press · published 28 January 2012 · consulted 2 November 2026 · in another language
  13. Mercedes-Benz M 276Wikipedia (de) · Other source · consulted 2 November 2026 · in German
  14. Mercedes-Benz M276 engineWikipedia (en) · Other source · consulted 2 November 2026
  15. W pierwszych silnikach 1,6 l przecierały się zawory (Chevrolet Lacetti)AutoCentrum.pl (usterki) · Owners' forum · consulted 2 November 2026 · in another language
  16. Mercedes-Benz GLK (X204) – Typische Probleme & MängelGebrauchtwagenberater · Motoring press · published 20 July 2025 · consulted 2 November 2026 · in German
  17. Mercedes-Benz Timing Chain TensionersAutomotive Tech Info · Technical documentation · published August 2020 · consulted 2 November 2026