Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) engine: faults and reliability

• Mégane E-Tech EV40, 40 kWh, 130 hp (2022-present)

  since 2022 · 130 hp

  With caution

  There are few reports (4), but they include a case of very reduced range caused by the battery. A battery health certificate and a charging test are advisable.^[1]

• Mégane E-Tech EV60, 60 kWh, 130 hp (2022-present)

  since 2022 · 130 hp

  With caution

  Few reports (5), including a motor replacement and a car immobilised by the battery within three months. In addition, campaign 0EKN from 2024-2025 affects units in this range.^[1][8]

• Mégane E-Tech EV60, 60 kWh, 220 hp (2022-present)

  since 2022 · 220 hp

  With caution

  It accounts for almost all the charging reports (19) and electric motor reports (5) on the entry. Test both AC and fast charging, and check for campaigns.^[1]

• Ariya 63 kWh net, front-wheel drive, 218 hp (2022-present)

  since 2022 · 218 hp

  With caution

  It is covered by the motor campaigns (R23C7 and R24A2) if it was built between March 2022 and June 2023. Later cars have no documented faults, but there is little data.^[2][3][4]

• Ariya 87 kWh net, front-wheel drive, 242 hp (2022-present)

  since 2022 · 242 hp

  With caution

  Same motor campaigns as the rest of the 2022 and 2023 Ariya. The brand gives 8 years or 160,000 km of battery warranty, with a minimum health of 75% according to ADAC.^[2][3][6]

• Ariya e-4ORCE, all-wheel drive, 279-306 hp (2022-present)

  since 2022 · 279–306 hp

  With caution

  It shares the front motor and the campaigns of the front-wheel-drive Ariya. The oil leak in campaign R24A2 refers to the front motor.^[3][4]

Buy: No known serious faults, or they have already been corrected, in this version. With caution: Worth buying if something specific is verified: history, a replaced part or a completed campaign. Avoid: High risk of a serious fault that is hard to check for or prevent.

1. 1Critical severityFrequency: OccasionalElectric motor and reduction gearLoss of traction caused by conductive shavings on the slip rings of the Nissan Ariya motorNissan recalled Ariya built between 9 March 2022 and 5 April 2023. Conductive shavings from the motor slip rings can cause a momentary short circuit, cutting power and possibly triggering an ‘EV System Off’ warning. It is fixed with an inverter software update.
2. 2High severityFrequency: OccasionalElectric motor and reduction gearOil leak from the seal of the Nissan Ariya traction electric motorIn 2024 Nissan recalled a batch of Ariya because a seal in the traction motor can leak oil, causing the car to enter emergency mode with torque reduced to zero. The fix described by the DVSA is to replace the traction motor. The Spanish press estimates about 10.5 hours of work.
3. 3Medium severityFrequency: OccasionalChargingCharging faults on the Mégane E-Tech: on-board charger, fast charging and connectorOn the fiches-auto.fr entry, charging is the most frequently reported fault in the electrical system of the Mégane E-Tech: 20 of 86 reports describe charging that stops or is rejected on AC (22 kW charger) or on fast charging, with warnings that charging is impossible.
4. 4Medium severityFrequency: OccasionalCoolingCampaign 0EKN: connector in the battery cooling circuit of the Mégane E-Tech that may corrodeIn April 2025 Renault warned owners of the Mégane and Scénic E-Tech that a connector could corrode and leave the traction battery uncharged or limit power. The free repair consists of inspecting the connector and replacing the end of the battery cooling pipe. The information comes from owner forums that cite the manufacturer's letter.
5. 5High severityFrequency: RareTraction batteryMégane E-Tech traction battery: warnings, range loss and immobilisationThe fiches-auto.fr entry records 11 reports of traction battery problems on the Mégane E-Tech, including warnings, very reduced range, unbalanced modules and a few cases of cars immobilised. It is a sample of owners, without a degradation study or a recall that confirms it.
6. 6High severityFrequency: RareElectric motor and reduction gearMégane E-Tech electric motor and reduction gear: motor replacements and bearing noiseThe fiches-auto.fr entry records 7 reports of electric motor problems on the Mégane E-Tech, including cars stopped for a motor replacement and one car that stopped with a flood of warnings. They are isolated cases from a single source; there is no campaign or study to support them.

Severity colours: low, medium, high, critical. How we rate them

Manufacturer

Renault-Nissan

Family

CMF-EV

Type

Electrical

Engine

Síncrono trifásico en el eje delantero (excitación externa en el Mégane E-Tech); segundo motor trasero en el Ariya e-4ORCE de tracción total

Battery

40–91 kWh

Power

130–306 hp

Peak torque

600 Nm

Production

since 2022

Makes

Renault and Nissan

Technical data^[5][6][7]

1. since 2022

   Mégane E-Tech EV40, 40 kWh, 130 hp (2022-present)

   40 kWh battery and 96 kW motor (250 N·m), DC fast charging of up to 85 kW and a 22 kW AC charger.^[5]

2. since 2022

   Mégane E-Tech EV60, 60 kWh, 130 hp (2022-present)

   60 kWh battery with the 96 kW motor (250 N·m). DC fast charging reaches 130 kW.^[5]

3. since 2022

   Mégane E-Tech EV60, 60 kWh, 220 hp (2022-present)

   60 kWh battery with the 160 kW motor (300 N·m). This is the best-selling version and has the most reviews on the entry (77 of 86).^[5]

4. since 2022

   Ariya 63 kWh net, front-wheel drive, 218 hp (2022-present)

   66 kWh gross battery (63 net) and a single 160 kW front motor (300 N·m).^[7]

5. since 2022

   Ariya 87 kWh net, front-wheel drive, 242 hp (2022-present)

   91 kWh gross battery (87 net; 90 gross according to ADAC) and a 178 kW front motor (300 N·m), motor code AM67 according to ADAC.^[6][7]

6. since 2022

   Ariya e-4ORCE, all-wheel drive, 279-306 hp (2022-present)

   Adds a second rear motor: 205 kW with the 63 kWh net battery (279 hp) and 225 kW with the 87 kWh battery (306 hp), with up to 600 N·m.^[7]