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1.0 PureTech vs Porsche MA1 / 9A1: which engine is more reliable?

According to our risk index, the Porsche MA1 / 9A1 carries less risk than the 1.0 PureTech: 25/100 (moderate risk) versus 59/100 (high risk). The 1.0 PureTech has 2 documented serious faults, the main one being «Excessive oil consumption through the piston rings»; 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

1.0 PureTech

59

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

19 sourcesHow we work

Is the 1.0 PureTech reliable?

It is a simple naturally aspirated three-cylinder, but with two documented weak points: oil consumption through the piston rings, which Stellantis acknowledges across its entire production (2012-2016), and the oil-bath timing belt it shares with the 1.2. It is only recommended with a full service history, a consumption test and a checked belt.[1][2][3][4]

See the 3 of the 1.0 PureTech 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.[5][6][7][8]

See the 3 of the Porsche MA1 / 9A1 faults

Side-by-side comparison

Comparison of 1.0 PureTech and Porsche MA1 / 9A1
1.0 PureTechPorsche MA1 / 9A1
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement999 cm³—
TimingWet belt (belt-in-oil)Chain
Power68 hp255–400 hp
Production2012–2016[2][3][9][10]2009–2016[5][8][11][12][13][14][15]
Reliability
Risk index (what is it?)59High risk25Moderate risk
Documented faults33
Of high or critical severity21
Worst severityCritical severityCritical severity
Main faults
  1. High severity: Excessive oil consumption through the piston rings
  2. Critical severity: Degradation of the oil-bath timing belt
  3. Low severity: Ignition coil and spark plug failure
  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 €1,200Degradation of the oil-bath timing beltPublished figure[16][17]No reliable data
Which versions to buy
BuyRecommended versionsNone
  • 3.6 Carrera 345 hp (MA1.02, 2009-2012)[5][7][8]
  • 3.8 Carrera S 385 hp (MA1.01, 2009-2012)[7][8]
  • 2.9 Boxster/Cayman 255-265 hp (MA1.20, 2009-2012, no direct injection)[6][11]
With cautionVersions to be cautious about
  • 3.4 Boxster S / Cayman S 310-320 hp (MA1.21/.22, 2009-2012, direct injection)[6][18]
  • 3.4 Carrera 350 hp (MA1.04, 2011-2015)[7]
  • 3.8 Carrera S 400 hp (MA1.03, 2011-2015)[7]
  • 2.7 Boxster/Cayman 265-275 hp (MA1.22, 2012-2016)[18][19]
  • 3.4 Boxster S / Cayman S / GTS 315-340 hp (MA1.23, 2012-2016)[18][19]
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

1.0 PureTech

Porsche MA1 / 9A1

Other comparisons

With the 1.0 PureTech

With the Porsche MA1 / 9A1

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Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. Citroën, DS, Opel, Peugeot 1.2 PureTech. Nouvelle prise en charge pour la consommation d'huileL'argus · Motoring press · published 30 March 2024 · consulted 26 September 2026 · in French
  2. Moteur EBWikipédia · Other source · consulted 26 September 2026 · in French
  3. PSA inaugure son « trois-pattes »L'argus · Motoring press · published 28 December 2011 · consulted 26 September 2026 · in French
  4. Moteurs PureTech - Stellantis prend a minima ses responsabilitésUFC-Que Choisir · Consumer association · published 18 January 2025 · consulted 26 September 2026 · in French
  5. The Definitive Guide To Porsche 997 Engines (M96.05, M97, MA1)FCP Euro · Other source · published 16 January 2024 · consulted 2 November 2026
  6. Porsche 987: The Cayman and Boxster Generation GuideRenn Driver · Other source · published 1 November 2026 · consulted 2 November 2026
  7. Porsche 911: 5 Generationen im Gebrauchtwagen-CheckAUTO BILD · Motoring press · published 22 September 2026 · consulted 2 November 2026 · in German
  8. Porsche 997Wikipedia · Other source · consulted 2 November 2026
  9. Peugeot 208 5p Access 1.0 PureTech 68 (2012-2015): precio y ficha técnicakm77 · Technical documentation · consulted 26 September 2026 · in Spanish
  10. Prueba de consumo (126): Peugeot 208 1.0-VTi 68 CVkm77 · Motoring press · published 5 August 2013 · consulted 26 September 2026 · in Spanish
  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. 1.2 PureTech: precio y cambio de correa de distribuciónAutopista · Motoring press · published 2 August 2026 · consulted 26 September 2026 · in Spanish
  17. Motor ZMZ EB0 Citroën Peugeot C3 II 208 I 1.0 VTi 68 CV usado y reconstruidoFair Motors · Technical documentation · consulted 26 September 2026 · in Spanish
  18. Porsche Cayman and Boxster Common Problems: A Specialist Field GuideForeign Automotive · Other source · consulted 2 November 2026
  19. Porsche 981: The Cayman and Boxster Generation GuideRenn Driver · Other source · consulted 2 November 2026