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

According to our risk index, the 1.4 / 1.6 16v E-TEC II carries less risk than the Rover K-Series: 19/100 (low risk) versus 46/100 (moderate risk). The 1.4 / 1.6 16v E-TEC II has no documented serious faults; the Rover K-Series has 2 documented serious faults, the main one being «Head gasket failure».

Risk index

1.4 / 1.6 16v E-TEC II

19

Low risk · 0 serious faults

Lower risk

Risk index

Rover K-Series

46

Moderate risk · 2 serious faults

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

16 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 Rover K-Series reliable?

The Rover K-Series has one very well-known fault: the head gasket, which according to Diariomotor can fail at under 100,000 km and which technical sources link to a small cooling circuit and a badly placed thermostat. The usual repair uses the multi-layer (MLS) gasket developed for the Freelander; the other two documented faults (sunken liners and coolant leaks) are related to that same circuit.[4][5][6][7]

See the 3 of the Rover K-Series faults

Side-by-side comparison

Comparison of 1.4 / 1.6 16v E-TEC II and Rover K-Series
1.4 / 1.6 16v E-TEC IIRover K-Series
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement——
TimingTiming belt (dry)Timing belt (dry)
Power83–109 hp60–160 hp
Production2004–2011[8][9][10][11][12]1990–2005[5][13]
Reliability
Risk index (what is it?)19Low risk46Moderate risk
Documented faults33
Of high or critical severity02
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: Head gasket failure
  2. High severity: Sunken cylinder liners and warped head after overheating
  3. Medium severity: Coolant leaks: expansion tank cap, rear block rail and hoses
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]
None
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][14]
  • 1.1 K8 60 hp / K16 75 hp (Rover 25, 1998-2005)[4][7]
  • 1.4 8V/16V 74-103 hp (14K2F / 14K4F, 1995-2005)[4][6]
  • 1.6 16V 109-116 hp (16K4F, 1995-2005)[4][6]
  • 1.8 16V 117-136 hp (18K4F, 1995-2005)[4][6][15]
  • 1.8 VVC 145-160 hp (18K4K, 1995-2005)[15][16]
  • 1.8 T turbo 150-160 hp (18K4T, 2002-2005)[4][7]
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 Rover K-Series

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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. Guía de compra del MG TF de segunda manoDiariomotor · Motoring press · published 7 November 2023 · consulted 8 October 2026 · in Spanish
  5. MG TF (2002)Wikipedia (en) · Other source · consulted 8 October 2026
  6. Choosing the correct K Series Head Gasket KitDMGRS · Technical documentation · consulted 8 October 2026
  7. Cooling and heating (K-Series: ZR, ZS, ZT, MGF, TF)MGOC Spares · Technical documentation · consulted 8 October 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. Rover K-series engineWikipedia (en) · Other source · consulted 8 October 2026
  14. W pierwszych silnikach 1,6 l przecierały się zawory (Chevrolet Lacetti)AutoCentrum.pl (usterki) · Owners' forum · consulted 2 November 2026 · in another language
  15. MG ZR ZS ZT & Modern Engine & FuelMGOC Spares · Technical documentation · consulted 8 October 2026
  16. MGF & TF Headgasket Repair KitsMGOC Spares · Technical documentation · consulted 8 October 2026