Skip to content
MotorFiable
en

Audi e-tron / Q8 e-tron 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 Audi e-tron / Q8 e-tron: 36/100 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 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

Audi e-tron / Q8 e-tron

43

Moderate risk · 2 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

14 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 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.[4][5][6]

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

Side-by-side comparison

Comparison of Audi e-tron / Q8 e-tron and Stellantis e-CMP (e-208, Corsa-e, ë-C4…)
Audi e-tron / Q8 e-tronStellantis e-CMP (e-208, Corsa-e, ë-C4…)
Technical data
TypeEngineEngine
FuelElectricalElectrical
Displacement——
Timing——
Power249–503 hp136–156 hp
Production2019–2025[7]since 2019[8][9]
Reliability
Risk index (what is it?)43Moderate risk36Moderate risk
Documented faults25
Of high or critical severity23
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. 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 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][10]
  • e-tron 55 quattro and S, 95 kWh gross battery (2019-2022)[1][2][3]
  • e-CMP 50 kWh, 136 hp (2019-2024)[4][5][6]
  • Large vans 75 kWh, 136 hp (2020-2024)[9][11]
  • e-CMP second generation 54 kWh, 156 hp (2022-)[12][13][14]
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

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

See the 20 models with the Stellantis e-CMP (e-208, Corsa-e, ë-C4…)

Other comparisons

With the Audi e-tron / Q8 e-tron

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

Compare other engines

That is the comparison you are viewing: change one of the two engines.

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. 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
  5. 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
  6. E-Fahrzeug-Rückruf: E-Motor könnte ausfallenauto motor und sport · Motoring press · published 1 March 2023 · consulted 30 October 2026 · in German
  7. Audi e-tron (2018) - WikipediaWikipedia · Other source · consulted 30 October 2026
  8. Common Modular Platform (CMP / e-CMP)Wikipedia · Other source · consulted 30 October 2026
  9. Peugeot Expert (electric versions)Wikipedia · Other source · consulted 30 October 2026
  10. 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
  11. E-Auto: Rückruf bei Opel, Peugeot, Citroën und DSGebrauchtwagenberater.de · Motoring press · published 8 June 2023 · consulted 30 October 2026 · in German
  12. Fiat 600 : fiabilité, pannes et rappels (600e)Fiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
  13. Rückruf Opel Astra Electric: Kann in falsche Richtung fahrenauto motor und sport · Motoring press · published 23 November 2023 · consulted 30 October 2026 · in German
  14. Opel Astra (Astra Electric)Wikipedia · Other source · consulted 30 October 2026