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2.0 TSI / TFSI vs Porsche MA1 / 9A1: which engine is more reliable?

According to our risk index, the Porsche MA1 / 9A1 carries less risk than the 2.0 TSI / TFSI: 25/100 (moderate risk) versus 54/100 (high risk). The 2.0 TSI / TFSI has 2 documented serious faults, the main one being «High oil consumption»; the Porsche MA1 / 9A1 has 1 documented serious fault, the main one being «Bore scoring in the MA1 of the 997.2 and 987.2: uncommon, but documented».

Risk index

2.0 TSI / TFSI

54

High risk · 2 serious faults

Risk index

Porsche MA1 / 9A1

25

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

20 sourcesHow we work

Is the 2.0 TSI / TFSI reliable?

It depends above all on the generation. The earliest units (2008-2012, without Valvelift) have more oil consumption complaints and somewhat more chain and tensioner wear; from 2012 the Valvelift design reduced oil consumption but kept carbon build-up on the intake valves as a weak point until, around 2016, supplementary indirect injection was added. The thermostat housing with the integrated water pump leaks coolant in several generations.[1][2][3][4][5]

See the 5 of the 2.0 TSI / TFSI faults

Is the Porsche MA1 / 9A1 reliable?

Yes, it is noticeably more reliable than the M96/M97: it eliminated the intermediate shaft with its IMS bearing and, according to FCP Euro, the connecting rod bolt failures. What is documented is minor: carbon build-up on the intake valves caused by direct injection, coolant pump leaks on the 991.1 and, rarely, bore scoring on the 997.2.[6][7][8][9]

See the 3 of the Porsche MA1 / 9A1 faults

Side-by-side comparison

Comparison of 2.0 TSI / TFSI and Porsche MA1 / 9A1
2.0 TSI / TFSIPorsche MA1 / 9A1
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,984 cm³—
TimingChainChain
Power170–320 hp255–400 hp
Productionsince 2008[1][10]2009–2016[6][9][11][12][13][14][15]
Reliability
Risk index (what is it?)54High risk25Moderate risk
Documented faults53
Of high or critical severity21
Worst severityCritical severityCritical severity
Main faults
  1. High severity: High oil consumption
  2. Critical severity: Timing chain and tensioner wear
  3. Medium severity: Carbon build-up on the intake valves
  1. Critical severity: Bore scoring in the MA1 of the 997.2 and 987.2: uncommon, but documented
  2. Medium severity: Carbon build-up on the intake valves caused by direct injection
  3. Medium severity: Leaks from the electronically controlled coolant pumps of the 991.1 and the plastic water pump
Most expensive documented repairup to €4,000High oil consumptionPublished figure[16]No reliable data
Which versions to buy
BuyRecommended versions
  • 2.0 TSI/TFSI Gen 3B / evo, with added indirect injection (2016 onwards, 190-320 hp)[1][5][17]
  • 3.6 Carrera 345 hp (MA1.02, 2009-2012)[6][8][9]
  • 3.8 Carrera S 385 hp (MA1.01, 2009-2012)[8][9]
  • 2.9 Boxster/Cayman 255-265 hp (MA1.20, 2009-2012, no direct injection)[7][11]
With cautionVersions to be cautious about
  • 2.0 TSI/TFSI Gen 1, without Valvelift (2008-2012, 170-220 hp)[2][3][17][18]
  • 2.0 TSI/TFSI Gen 2/3, with Valvelift and direct injection only (2012-2016, 180-230 hp)[2][3][17]
  • 3.4 Boxster S / Cayman S 310-320 hp (MA1.21/.22, 2009-2012, direct injection)[7][19]
  • 3.4 Carrera 350 hp (MA1.04, 2011-2015)[8]
  • 3.8 Carrera S 400 hp (MA1.03, 2011-2015)[8]
  • 2.7 Boxster/Cayman 265-275 hp (MA1.22, 2012-2016)[19][20]
  • 3.4 Boxster S / Cayman S / GTS 315-340 hp (MA1.23, 2012-2016)[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

2.0 TSI / TFSI

See the 45 models with the 2.0 TSI / TFSI

Porsche MA1 / 9A1

Other comparisons

With the 2.0 TSI / TFSI

With the Porsche MA1 / 9A1

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. Volkswagen EA888 engineWikipedia (inglés) · Other source · consulted 26 September 2026
  2. Fiabilité Volkswagen (datos de propietarios por modelo)fiches-auto.fr · Reliability study · consulted 26 September 2026 · in French
  3. Fiabilité Audi (datos de propietarios por modelo)fiches-auto.fr · Reliability study · consulted 26 September 2026 · in French
  4. Motores TFSI: características, ventajas e inconvenientesAutofácil · Motoring press · published 18 May 2020 · consulted 26 September 2026 · in Spanish
  5. Motor 2.0 TFSI 190 CV (ficha técnica)km77 · Technical documentation · published 13 May 2015 · consulted 26 September 2026 · in Spanish
  6. The Definitive Guide To Porsche 997 Engines (M96.05, M97, MA1)FCP Euro · Other source · published 16 January 2024 · consulted 2 November 2026
  7. Porsche 987: The Cayman and Boxster Generation GuideRenn Driver · Other source · published 1 November 2026 · consulted 2 November 2026
  8. Porsche 911: 5 Generationen im Gebrauchtwagen-CheckAUTO BILD · Motoring press · published 22 September 2026 · consulted 2 November 2026 · in German
  9. Porsche 997Wikipedia · Other source · consulted 2 November 2026
  10. Audi TTWikipedia (inglés) · Other source · consulted 26 September 2026
  11. Porsche Boxster and Cayman (987)Wikipedia · Other source · consulted 2 November 2026
  12. Porsche 991Wikipedia · Other source · consulted 2 November 2026
  13. Porsche Boxster and Cayman (981)Wikipedia · Other source · consulted 2 November 2026
  14. Differences between M96 and M97 enginesFlat Six Innovations · Other source · published 25 November 2025 · consulted 2 November 2026
  15. List of Porsche enginesWikipedia · Other source · consulted 2 November 2026
  16. Tu coche quema aceite: 6 señales de alarma y la solución definitiva para salvar tu motorAutopista.es · Motoring press · published 19 June 2026 · consulted 26 September 2026 · in Spanish
  17. Témoignages fiabilité Audifiches-auto.fr · Owners' forum · consulted 26 September 2026 · in French
  18. Témoignages fiabilité Volkswagenfiches-auto.fr · Owners' forum · consulted 26 September 2026 · in French
  19. Porsche Cayman and Boxster Common Problems: A Specialist Field GuideForeign Automotive · Other source · consulted 2 November 2026
  20. Porsche 981: The Cayman and Boxster Generation GuideRenn Driver · Other source · consulted 2 November 2026