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1.6 EcoBoost vs M43 1.6, 1.8 and 1.9: which engine is more reliable?

According to our risk index, the M43 1.6, 1.8 and 1.9 carries less risk than the 1.6 EcoBoost: 42/100 (moderate risk) versus 59/100 (high risk). The 1.6 EcoBoost has 3 documented serious faults, the main one being «Cracked cylinder head from overheating, with fire risk»; the M43 1.6, 1.8 and 1.9 has 1 documented serious fault, the main one being «Failure of the plastic parts in the cooling system».

Risk index

1.6 EcoBoost

59

High risk · 3 serious faults

Risk index

M43 1.6, 1.8 and 1.9

42

Moderate risk · 1 serious fault

Lower risk

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

15 sourcesHow we work

Is the 1.6 EcoBoost reliable?

It is a turbocharged direct-injection four-cylinder that Ford used between 2010 and 2018 as a mid-range step across much of its European line-up, and which Volvo sold under its own T3/T4 designations. Its most serious fault is overheating caused by a loss of coolant circulation that can crack the cylinder head and cause a fire: Ford has recalled cars in South Africa and in the US/Canada, although we have not confirmed an equivalent campaign in Spain.[1][2][3]

See the 4 of the 1.6 EcoBoost faults

Is the M43 1.6, 1.8 and 1.9 reliable?

The M43 (1993-2002) is an 8-valve petrol four-cylinder with a timing chain that Autohints describes as one of BMW’s most durable engines of the nineties. The faults the sources cite are with ancillaries: plastic cooling parts, oil leaks from the gaskets, rough idle, ignition and, in some versions, the DISA valve.[4][5][6]

See the 5 of the M43 1.6, 1.8 and 1.9 faults

Side-by-side comparison

Comparison of 1.6 EcoBoost and M43 1.6, 1.8 and 1.9
1.6 EcoBoostM43 1.6, 1.8 and 1.9
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,596 cm³—
TimingTiming belt (dry)Chain
Power120–200 hp102–118 hp
Production2010–2019[1][7]1993–2002[5][8][9]
Reliability
Risk index (what is it?)59High risk42Moderate risk
Documented faults45
Of high or critical severity31
Worst severityCritical severityHigh severity
Main faults
  1. Critical severity: Cracked cylinder head from overheating, with fire risk
  2. High severity: Coolant loss from hoses, water pump or expansion tank
  3. High severity: Premature turbocharger failure
  1. High severity: Failure of the plastic parts in the cooling system
  2. Medium severity: DISA intake manifold valve with play and noise
  3. Low severity: Oil leaks from gaskets (rocker cover, front cover and crankcase breather)
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • 1.6 EcoBoost 120/150/160/182 (Ford, 2010-2019)[3][10][11]
  • 1.6 EcoBoost ST 182/197/200 (Ford Fiesta ST/ST200, 2013-2017)[1][12]
  • Volvo T3/T4 1.6 (B4164T3/B4164T/B4164T2, 2010-2018)[13]
  • M43B16, 1.6 litre (102 hp; 1993-1999)[4][5][6]
  • M43B18, 1.8 litre (115 hp; 1993-1999)[4][14]
  • M43TUB19, 1.9 litre (105 hp; 1998-2002)[4][6][15]
  • M43TUB19, 1.9 litre (118 hp; 1998-2002)[4][6][15]
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

1.6 EcoBoost

See the 11 models with the 1.6 EcoBoost

M43 1.6, 1.8 and 1.9

Other comparisons

With the 1.6 EcoBoost

With the M43 1.6, 1.8 and 1.9

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. Ford EcoBoost engineWikipedia · Other source · consulted 27 September 2026
  2. The Largest Ford EcoBoost Recalls In 15 Years Of ProductionCarBuzz · Motoring press · consulted 27 September 2026
  3. Ford KugaWikipedia · Other source · consulted 27 September 2026
  4. BMW M43B18 1.8L 115hp inline-4 cylinder engineAutoHints · Technical documentation · consulted 2 November 2026
  5. Der BMW M43 Motor: Technische Daten, Probleme, Haltbarkeit & FahrzeuglisteCarWiki.de · Other source · consulted 2 November 2026 · in German
  6. BMW M43: problemas conocidosEnginescope · Other source · consulted 2 November 2026
  7. Volvo S60Wikipedia · Other source · consulted 27 September 2026
  8. BMW M43Wikipedia (inglés) · Other source · consulted 2 November 2026
  9. BMW M43Wikipedia (alemán) · Other source · consulted 2 November 2026 · in German
  10. Fiabilité et pannes Ford Mondeo 3Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
  11. Fiabilité et pannes Ford S-MaxFiches-auto.fr · Other source · consulted 27 September 2026 · in French
  12. Ford Fiesta STWikipedia · Other source · consulted 27 September 2026
  13. Fiabilité et pannes Volvo S60Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
  14. BMW 3 Series E36 Reliability Guide: Everything You Need to Know Before BuyingEuro Premium Parts · Technical documentation · consulted 2 November 2026
  15. 316i M43: 17 Jahre, Standhaftigkeit erhöhen (E46)BMW-Syndikat (foro) · Owners' forum · consulted 2 November 2026 · in German