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Audi e-tron / Q8 e-tron vs Renault 5 E-Tech (AmpR Small): which engine is more reliable?

According to our risk index, the Renault 5 E-Tech (AmpR Small) carries less risk than the Audi e-tron / Q8 e-tron: 38/100 versus 43/100 (both moderate risk). The Audi e-tron / Q8 e-tron has 2 documented serious faults, the main one being «Battery cell modules with a risk of overheating and fire»; the Renault 5 E-Tech (AmpR Small) has 1 documented serious fault, the main one being «Anode delamination in 52 kWh battery cells (2026 campaign)».

Risk index

Audi e-tron / Q8 e-tron

43

Moderate risk · 2 serious faults

Risk index

Renault 5 E-Tech (AmpR Small)

38

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

9 sourcesHow we work

Is the Audi e-tron / Q8 e-tron reliable?

We have found no documented faults with the electric motor or the power electronics; what is on record are two precautionary high-voltage battery recalls: moisture at the connection (first 2019 units) and cell modules with a risk of overheating (built 2018-2022). Check the chassis number and the battery's state of health.[1][2][3]

See the 2 of the Audi e-tron / Q8 e-tron faults

Is the Renault 5 E-Tech (AmpR Small) reliable?

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.[4][5][6]

See the 3 of the Renault 5 E-Tech (AmpR Small) faults

Side-by-side comparison

Comparison of Audi e-tron / Q8 e-tron and Renault 5 E-Tech (AmpR Small)
Audi e-tron / Q8 e-tronRenault 5 E-Tech (AmpR Small)
Technical data
TypeEngineEngine
FuelElectricalElectrical
Displacement——
Timing——
Power249–503 hp95–150 hp
Production2019–2025[7]since 2024[4][8]
Reliability
Risk index (what is it?)43Moderate risk38Moderate risk
Documented faults23
Of high or critical severity21
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: Battery cell modules with a risk of overheating and fire
  2. Critical severity: Moisture ingress at the battery connection on the early units (2019)
  1. Critical severity: Anode delamination in 52 kWh battery cells (2026 campaign)
  2. Medium severity: Motor inverter: no-start fault and 0EN5 campaign reprogramming
  3. Medium severity: Rejections, errors and charging interruptions on the R5 E-Tech
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • Q8 e-tron 50 / 55 and SQ8, 95 and 114 kWh gross batteries (2022-2025)[1][2][7]
None
With cautionVersions to be cautious about
  • e-tron 50 quattro, 71 kWh gross battery (2020-2022)[1][2][9]
  • e-tron 55 quattro and S, 95 kWh gross battery (2019-2022)[1][2][3]
  • R5 E-Tech EV40 95 hp (70 kW, 40 kWh battery, 2024-present)[4][5]
  • R5 E-Tech EV40 120 hp (90 kW, 40 kWh battery, 2024-present)[4][5]
  • R5 E-Tech EV52 150 hp (110 kW, 52 kWh battery, 2024-present)[4][6]
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

Audi e-tron / Q8 e-tron

Renault 5 E-Tech (AmpR Small)

Other comparisons

With the Audi e-tron / Q8 e-tron

With the Renault 5 E-Tech (AmpR Small)

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. Audi e-tron (2018 - 2022): recall por sobrecarga térmica de la batería (alerta Safety Gate 8/2024)car-recalls.eu · Other source · published 26 February 2024 · consulted 30 October 2026
  2. Audi-Rückruf: Defekte Akkuzellen - Brandgefahr beim E-Tronauto motor und sport · Motoring press · published February 2024 · consulted 30 October 2026 · in German
  3. Schlechter Start: Audi muss verkaufte E-Trons in die Werkstatt rufenWinFuture · General press · published 11 June 2019 · consulted 30 October 2026 · in German
  4. Fiabilité Renault R5 E-tech (2024) (11 témoignages)Fiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
  5. Grosse alerte chez Renault : 16 000 véhicules rappelés en urgenceL'Automobiliste · General press · published 5 March 2025 · consulted 30 October 2026 · in French
  6. 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
  7. Audi e-tron (2018) - WikipediaWikipedia · Other source · consulted 30 October 2026
  8. Renault 5 E-TechWikipedia (en) · Other source · consulted 30 October 2026
  9. Gebrauchtwagen-Check Audi e-tron (GE): Günstiger als ein elektrischer Fiat Grande PandaAutoScout24 Magazin · Motoring press · published 14 March 2025 · consulted 30 October 2026 · in German