1.0 PureTech vs 1.8 TCe: which engine is more reliable?

According to our risk index, the 1.8 TCe carries less risk than the 1.0 PureTech: 32/100 (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 1.8 TCe has 2 documented serious faults, the main one being «A110 oil pressure solenoid valve sticking in 2018–2019 cars».

Risk index

1.0 PureTech

High risk · 2 serious faults

Risk index

1.8 TCe

Moderate risk · 2 serious faults

Lower risk

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

Reviewed on 31 October 202614 sources How 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 1.8 TCe reliable?

The 1.8 TCe (M5P) in the Alpine A110 and the Mégane R.S. IV has no documented endemic faults. What has been published are recalls for the A110: the oil pressure solenoid valve (2019) and the fuel pump (2021 and 2023). We have found no recalls or complaints about this engine in the Mégane R.S.^[5][6][7][8]

See the 2 of the 1.8 TCe faults

Side-by-side comparison

Comparison of 1.0 PureTech and 1.8 TCe
Item	1.0 PureTech	1.8 TCe
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	999 cm³	1,798 cm³
Timing	Wet belt (belt-in-oil)	—
Power	68 hp	252–350 hp
Production	2012–2016^{[2][3][9][10]}	2017–2026^[8][11][12]
Reliability
Risk index (what is it?)	59High risk	32Moderate risk
Documented faults	3	2
Of high or critical severity	2	2
Worst severity	Critical severity	High severity
Main faults	High severity: Excessive oil consumption through the piston rings Critical severity: Degradation of the oil-bath timing belt Low severity: Ignition coil and spark plug failure	High severity: A110 oil pressure solenoid valve sticking in 2018–2019 cars High severity: A110 fuel pump that can leave the car unable to start when hot
Most expensive documented repair	up to €1,200Degradation of the oil-bath timing beltPublished figure^[13][14]	No reliable data
Which versions to buy
BuyRecommended versions	None	1.8 TCe 280–300 hp (M5P, Mégane R.S. IV, 2018–2023)^[5][7][8]
With cautionVersions to be cautious about	1.0 VTi / PureTech 68 (EB0, 2012-2016)^{[1][2][4][13]}	1.8 TCe 252–350 hp (M5P, Alpine A110, 2017–2026)^[5][7]
AvoidVersions to avoid	None	None

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

1.8 TCe

Other comparisons

With the 1.0 PureTech

With the 1.8 TCe

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Sources

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

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
Moteur EBWikipédia · Other source · consulted 26 September 2026 · in French
PSA inaugure son « trois-pattes »L'argus · Motoring press · published 28 December 2011 · consulted 26 September 2026 · in French
Moteurs PureTech - Stellantis prend a minima ses responsabilitésUFC-Que Choisir · Consumer association · published 18 January 2025 · consulted 26 September 2026 · in French
Rappels Alpine A110 (2019). Risque de casse moteurL'argus · Motoring press · published 28 August 2019 · consulted 31 October 2026 · in French
Rappel Alpine A110. La pompe à essence de 2 849 exemplaires remplacéeL'argus · Motoring press · published 7 September 2021 · consulted 31 October 2026 · in French
Alpine A110. Un nouveau rappel pour remplacer des pompes à essenceL'argus · Motoring press · published 25 October 2023 · consulted 31 October 2026 · in French
Renault Mégane IVWikipedia (fr) · Other source · consulted 31 October 2026 · in French
Peugeot 208 5p Access 1.0 PureTech 68 (2012-2015): precio y ficha técnicakm77 · Technical documentation · consulted 26 September 2026 · in Spanish
Prueba de consumo (126): Peugeot 208 1.0-VTi 68 CVkm77 · Motoring press · published 5 August 2013 · consulted 26 September 2026 · in Spanish
Alpine A110 (2017)Wikipedia (en) · Other source · consulted 31 October 2026
Alpine A110 (2017)Wikipedia (fr) · Other source · consulted 31 October 2026 · in French
1.2 PureTech: precio y cambio de correa de distribuciónAutopista · Motoring press · published 2 August 2026 · consulted 26 September 2026 · in Spanish
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