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Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) vs Stellantis e-CMP (e-208, Corsa-e, ë-C4…): which engine is more reliable?

According to our risk index, the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) carries less risk than the Renault-Nissan CMF-EV (Mégane E-Tech, Ariya): 36/100 versus 43/100 (both moderate risk). The Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) has 4 documented serious faults, the main one being «Loss of traction caused by conductive shavings on the slip rings of the Nissan Ariya motor»; the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) has 3 documented serious faults, the main one being «Loss of traction from a high-voltage system cut-out (‘electric traction fault’ warning)».

Risk index

Renault-Nissan CMF-EV (Mégane E-Tech, Ariya)

43

Moderate risk · 4 serious faults

Risk index

Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

36

Moderate risk · 3 serious faults

Lower risk

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

17 sourcesHow we work

Is the Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) reliable?

The CMF-EV platform has a short track record and little data: on the Nissan Ariya, the documented problems are two recalls of the traction motor (metal shavings on the slip rings and an oil leak from the seal), both on 2022 and 2023 units. On the Mégane E-Tech there are only owner reports, mostly about charging, and a 2025 campaign concerning a connector in the battery cooling circuit.[1][2][3][4]

See the 6 of the Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) faults

Is the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) reliable?

Stellantis’s electric drivetrain has no serious factory faults documented: the battery holds up well (median 94% health at 50,000 km and 90.7% at 150,000 km in the e-208 and Corsa-e), and the problems cited are the charger and several software campaigns.[5][6][7]

See the 5 of the Stellantis e-CMP (e-208, Corsa-e, ë-C4…) faults

Side-by-side comparison

Comparison of Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) and Stellantis e-CMP (e-208, Corsa-e, ë-C4…)
Renault-Nissan CMF-EV (Mégane E-Tech, Ariya)Stellantis e-CMP (e-208, Corsa-e, ë-C4…)
Technical data
TypeEngineEngine
FuelElectricalElectrical
Displacement——
Timing——
Power130–306 hp136–156 hp
Productionsince 2022[8][9][10]since 2019[11][12]
Reliability
Risk index (what is it?)43Moderate risk36Moderate risk
Documented faults65
Of high or critical severity43
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: Loss of traction caused by conductive shavings on the slip rings of the Nissan Ariya motor
  2. High severity: Oil leak from the seal of the Nissan Ariya traction electric motor
  3. Medium severity: Charging faults on the Mégane E-Tech: on-board charger, fast charging and connector
  1. High severity: Loss of traction from a high-voltage system cut-out (‘electric traction fault’ warning)
  2. High severity: Traction battery control calibration: motor cut-out from faulty readings (2022)
  3. Critical severity: Astra Electric: communication fault between control units that can make the car move backwards (2023)
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • Mégane E-Tech EV40, 40 kWh, 130 hp (2022-present)[1]
  • Mégane E-Tech EV60, 60 kWh, 130 hp (2022-present)[1][13]
  • Mégane E-Tech EV60, 60 kWh, 220 hp (2022-present)[1]
  • Ariya 63 kWh net, front-wheel drive, 218 hp (2022-present)[2][3][4]
  • Ariya 87 kWh net, front-wheel drive, 242 hp (2022-present)[2][3][9]
  • Ariya e-4ORCE, all-wheel drive, 279-306 hp (2022-present)[3][4]
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

Renault-Nissan CMF-EV (Mégane E-Tech, Ariya)

Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

See the 19 models with the Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

Other comparisons

With the Renault-Nissan CMF-EV (Mégane E-Tech, Ariya)

With the Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

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. Tous les problèmes sur Renault MEGANE E-TECH 2022 (86 témoignages)Fiches-auto.fr · Motoring press · consulted 30 October 2026 · in French
  2. Nissan Ariya (2022-2023): recall electronic EV/Hybrid (Safety Gate 44/2023)car-recalls.eu · Other source · published 5 November 2023 · consulted 30 October 2026
  3. DVSA – base de llamadas a revisión (Ariya R23C7 y R24A2)DVSA (Reino Unido) · Official body · consulted 29 October 2026
  4. Ya es raro en un eléctrico, pero el Nissan Ariya «pierde aceite» y tiene que pasar por el tallerTestCoches · Motoring press · published 12 June 2024 · consulted 30 October 2026 · in Spanish
  5. Ni un solo eléctrico baja del 86 % de batería: 500.000 tests miden la degradación de 20 modelos a los 150.000 kmtestcoches.es · Reliability study · published 4 September 2026 · consulted 30 October 2026 · in Spanish
  6. Peugeot e-208, e-2008, DS 3 e-Tense. Un rappel de 5 761 exemplairesL'argus · Motoring press · published 20 April 2022 · consulted 30 October 2026 · in French
  7. E-Fahrzeug-Rückruf: E-Motor könnte ausfallenauto motor und sport · Motoring press · published 1 March 2023 · consulted 30 October 2026 · in German
  8. Renault Mégane E-Tech ElectricWikipedia · Other source · consulted 30 October 2026
  9. Nissan Ariya (87 kWh) Advance Pack (OBC 22 kW) (04/23 - 07/26): datos técnicosADAC · Technical documentation · consulted 30 October 2026 · in German
  10. Nissan AriyaWikipedia · Other source · consulted 30 October 2026
  11. Common Modular Platform (CMP / e-CMP)Wikipedia · Other source · consulted 30 October 2026
  12. Peugeot Expert (electric versions)Wikipedia · Other source · consulted 30 October 2026
  13. Campagne 0EKN - Dysfonctionnement possible (Scénic électrique)Forum Automobile Propre · Owners' forum · published 1 April 2025 · consulted 30 October 2026 · in French
  14. E-Auto: Rückruf bei Opel, Peugeot, Citroën und DSGebrauchtwagenberater.de · Motoring press · published 8 June 2023 · consulted 30 October 2026 · in German
  15. Fiat 600 : fiabilité, pannes et rappels (600e)Fiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
  16. Rückruf Opel Astra Electric: Kann in falsche Richtung fahrenauto motor und sport · Motoring press · published 23 November 2023 · consulted 30 October 2026 · in German
  17. Opel Astra (Astra Electric)Wikipedia · Other source · consulted 30 October 2026