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Ford Mustang Mach-E vs Stellantis e-CMP (e-208, Corsa-e, ë-C4…): which engine is more reliable?

According to our risk index, the Ford Mustang Mach-E carries less risk than the Stellantis e-CMP (e-208, Corsa-e, ë-C4…): 32/100 versus 36/100 (both moderate risk). The Ford Mustang Mach-E has 1 documented serious fault, the main one being «High-voltage battery contactors overheating: loss of power»; 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

Ford Mustang Mach-E

32

Moderate risk · 1 serious fault

Lower risk

Risk index

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

36

Moderate risk · 3 serious faults

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

18 sourcesHow we work

Is the Ford Mustang Mach-E reliable?

The Mach-E's electrical system has one documented weak point in Europe: the high-voltage battery contactors, which overheat and can cause a loss of power. Ford first fixed it with software (2022) and then by replacing the battery junction box (2023). No motor or battery faults have been published in Europe beyond that.[1][2][3]

See the of the Ford Mustang Mach-E fault

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 Ford Mustang Mach-E and Stellantis e-CMP (e-208, Corsa-e, ë-C4…)
Ford Mustang Mach-EStellantis e-CMP (e-208, Corsa-e, ë-C4…)
Technical data
TypeEngineEngine
FuelElectricalElectrical
Displacement——
Timing——
Power268–487 hp136–156 hp
Productionsince 2021[7][8][9]since 2019[10][11]
Reliability
Risk index (what is it?)32Moderate risk36Moderate risk
Documented faults15
Of high or critical severity13
Worst severityHigh severityCritical severity
Main faults
  1. High severity: High-voltage battery contactors overheating: loss of power
  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
  • Standard Range, 75.7 kWh battery, 269-329 hp (2021-2025)[1][2]
  • Extended Range, 98.8 kWh battery, 276-375 hp (2021-present)[12][13]
  • GT, 98.8 kWh battery, 487 hp (2021-present)[12][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

Ford Mustang Mach-E

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 Ford Mustang Mach-E

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. Rückruf Ford Mustang Mach-E: Hochvolt-Batterieauto motor und sport · Motoring press · consulted 30 October 2026 · in German
  2. Ford Mustang Mach-E: battery switch overheats after recall (KBA 013267)car-recalls.eu · Other source · published 19 December 2023 · consulted 30 October 2026
  3. Fiabilité Ford Mustang Mach-E: pannes et avisfiches-auto.fr · Motoring press · consulted 30 October 2026 · in French
  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. Ford Mustang Mach-E 1. Generation: ModellvariantenADAC Autokatalog · Technical documentation · consulted 30 October 2026 · in German
  8. Ford Mustang Mach-E reviewDrive (antes Honest John) · Motoring press · consulted 30 October 2026
  9. Ford Mustang Mach-EWikipedia (inglés) · Other source · consulted 30 October 2026
  10. Common Modular Platform (CMP / e-CMP)Wikipedia · Other source · consulted 30 October 2026
  11. Peugeot Expert (electric versions)Wikipedia · Other source · consulted 30 October 2026
  12. Ford Mustang Mach-E: Probleme mit dem HochvoltschützÖAMTC · Consumer association · published 28 December 2023 · consulted 30 October 2026 · in German
  13. Ford Mustang Mach-E: Rückruf wegen Leistungsverlustfuturezone.at · General press · published 20 October 2023 · consulted 30 October 2026 · in German
  14. Ford Mustang Mach-E: Rückruf wegen überhitzender Hochvoltbatterieecomento.de · Motoring press · published 24 June 2022 · consulted 30 October 2026 · in German
  15. E-Auto: Rückruf bei Opel, Peugeot, Citroën und DSGebrauchtwagenberater.de · Motoring press · published 8 June 2023 · consulted 30 October 2026 · in German
  16. Fiat 600 : fiabilité, pannes et rappels (600e)Fiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
  17. Rückruf Opel Astra Electric: Kann in falsche Richtung fahrenauto motor und sport · Motoring press · published 23 November 2023 · consulted 30 October 2026 · in German
  18. Opel Astra (Astra Electric)Wikipedia · Other source · consulted 30 October 2026