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Renault 5 E-Tech (AmpR Small) engine: faults and reliability

Renault AmpR Small: motor síncrono de excitación externa de 70 a 110 kW and baterías NMC de 40 and 52 kWh · Renault

2024 drivetrain with little data: Fiches-auto.fr has only 11 owner reports, and the official issues are an inverter reprogramming (0EN5, around 15,700 cars from 2024) and a campaign over defective cells in the 52 kWh battery from December 2025 to January 2026. There is no longevity data.[1][2][3]

Risk index
38
Moderate risk · what it is
Documented faults
3
1 of high or critical severity
Timing
—
Technical data[1][4]
Production
since 2024
1 model on this site

4 sourcesHow we work

Which Renault 5 E-Tech (AmpR Small) versions should you buy?

Our verdict for each version, based on the documented faults.

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.

Known faults of the Renault 5 E-Tech (AmpR Small)

Sorted from most to least important (severity × frequency).

  1. 1Critical severityFrequency: OccasionalTraction batteryAnode delamination in 52 kWh battery cells (2026 campaign)In March 2026 a preventive campaign for the 52 kWh R5 E-Tech built between 12/12/2025 and 28/01/2026 was notified on Safety Gate (SR/00796/26): a supplier production defect can lift the anode off a cell, with a risk of internal short circuit and fire.
  2. 2Medium severityFrequency: OccasionalPower electronicsMotor inverter: no-start fault and 0EN5 campaign reprogrammingIn 2025 Renault reprogrammed the inverter control unit on around 15,700 R5 E-Tech and Alpine A290 built between September and December 2024, because inappropriate monitoring modes could prevent the car from starting. The work takes about 30 minutes and is free.
  3. 3Medium severityFrequency: RareChargingRejections, errors and charging interruptions on the R5 E-TechFiches-auto.fr records 2 of 11 reports about the charger or the R5's charging port: error messages, a wrong charge-time indication, or charging cut off because the car misreads the power supply. It is a small sample from a single source.

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

Symptoms of these faults

What the Renault 5 E-Tech (AmpR Small) is

The Renault 5 E-Tech (2024) uses the AmpR Small platform, formerly known as CMF-B EV, with an externally excited synchronous motor of 70, 90 or 110 kW (95, 122 and 150 hp) and 40 or 52 kWh NMC batteries. According to Wikipedia, it is assembled in Douai (Renault ElectriCity) with the motor built in Cléon.[4]

Fiches-auto.fr distinguishes three variants (EV40 95 hp, EV40 120 hp and EV52 150 hp); all 11 of its reports concern the EV52. The same platform package is shared by the Renault 4 E-Tech and the Alpine A290 and, according to Wikipedia, the electric Nissan Micra.[1][4]

In August 2026 Renault opened orders for an updated version that switches the NMC batteries to LFP and increases power and range, according to Wikipedia; this file covers only the NMC drivetrain from 2024 onwards.[4]

Manufacturer
Renault (Ampere)
Family
AmpR Small
Type
Electrical
Engine
Síncrono de excitación externa (sin imanes permanentes), tracción delantera
Battery
40–52 kWh
Power
95–150 hp
Production
since 2024
Makes
Renault

Technical data[1][4]

What changed between versions

  1. since 2024

    R5 E-Tech EV40 95 hp (70 kW, 40 kWh battery, 2024-present)

    70 kW (95 hp) motor with 40 kWh NMC battery, according to Wikipedia; Fiches-auto.fr lists it as 'EV40 Electrique 95 ch'.[1][4]

  2. since 2024

    R5 E-Tech EV40 120 hp (90 kW, 40 kWh battery, 2024-present)

    Same 40 kWh pack with a 90 kW (122 PS, around 120 hp) motor, according to Wikipedia.[4]

  3. since 2024

    R5 E-Tech EV52 150 hp (110 kW, 52 kWh battery, 2024-present)

    52 kWh NMC battery with a 110 kW (150 hp) motor, according to Wikipedia; it is the version behind the 11 Fiches-auto.fr reports.[1][4]

Cars fitted with the Renault 5 E-Tech (AmpR Small)

1 model sold in Spain. Open each one to see all its faults and the buying checklist.

Renault

  • Renault 5 E-TechRenault 5 E-Tech electric 95 CV (40 kWh) · Renault 5 E-Tech electric 120 CV (40 kWh) · Renault 5 E-Tech electric 150 CV (52 kWh)since 2024[1][4]

Compare the Renault 5 E-Tech (AmpR Small)

Maintenance parts for the Renault 5 E-Tech (AmpR Small)

The parts replaced at services and when the timing belt or chain is changed, searched for this engine. Confirm the part number with the registration plate or VIN.

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Are you buying a car with the Renault 5 E-Tech (AmpR Small)?

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Do you have a car with this engine? Tell us which faults you have had, at how many kilometres and how much you paid. Report your fault.

Sources

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

  1. Fiabilité Renault R5 E-tech (2024) (11 témoignages)Fiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
  2. Grosse alerte chez Renault : 16 000 véhicules rappelés en urgenceL'Automobiliste · General press · published 5 March 2025 · consulted 30 October 2026 · in French
  3. Rappel Renault 5 et R4 E-Tech : 19 véhicules concernés en France pour un risque de batterieMotorsActu · Motoring press · published 21 March 2026 · consulted 30 October 2026 · in French
  4. Renault 5 E-TechWikipedia (en) · Other source · consulted 30 October 2026