Ford Mustang Mach-E I (2020 – 2023)
Reliability score : 7.4/10
The Ford Mustang Mach-E (Generation I) marks a historic turning point for the American manufacturer: it is its first 100% electric SUV designed specifically as such. By taking the name and certain styling cues of the legendary 'pony car', Ford made a bold bet. Positioned against the Tesla Model Y, it stands out with a strong design, dynamic road handling (RWD-biased even in AWD) and a spacious cabin dominated by a huge vertical touchscreen (Sync 4A). While the dynamic qualities and driving pleasure are present, the early years of production were marred by early software issues (12V battery drain) and, above all, by a critical hardware weakness in the high-voltage battery contactors (HVBJB). The 2023 models benefit from numerous hardware and software (OTA) corrections.
✅ Strengths
- Distinctive and successful exterior design (Mustang evocation)
- Dynamic and pleasant road handling (RWD-biased)
- Generous interior space and practical, washable front trunk (Frunk)
- Responsive Sync 4A infotainment system (after updates) with large screen
- Frequent and effective OTA (Over-The-Air) updates to fix bugs
⚠️ Weaknesses
- Major design flaw of the high voltage contactors (HVBJB) on 2020-2022 models
- Lack of a heat pump: significant loss of range in cold weather
- Very firm and jittery suspension at low speeds on non-GT versions
- Disappointing DC fast charging curve: drastic drop in power after 80%
- Early electronic bugs (PAAK, black screen, 12V battery) on the first model years
🎯 Verdict
The Ford Mustang Mach-E is an endearing electric SUV, endowed with a real stylistic and dynamic personality. However, buying a used model from the 2020 to early 2022 model years requires extreme vigilance. The design flaw of the high voltage contactors (HVBJB) is a sword of Damocles that can immobilize the vehicle. Only buy a model from those years if you have formal proof that the high voltage junction box has been physically replaced with the new reinforced part by Ford. Models produced from late 2022 / 2023 are much more reliable, as the early defects (software, glass mountings, 12V battery) have been corrected at the factory. Favor an Extended Range RWD version for the best range/price compromise.
Common issues
Défaillance des contacteurs de batterie haute tension (rappel 22S41)
High
🔧 Peut survenir à tout moment, souvent avant 50 000 km
💶 Généralement couvert par rappel/garantie. Hors garantie: 2 000 – 4 000 €
Vérifier si le rappel 22S41 a été effectué et la mise à jour logicielle appliquée.
Décharge de la batterie 12V auxiliaire
Medium
🔧 Dès les premiers kilomètres, souvent avant 30 000 km
💶 150 – 300 € (remplacement batterie 12V)
Surveiller les alertes, envisager un chargeur d'appoint si stationnement prolongé.
Bugs logiciels et problèmes d'infodivertissement (SYNC 4A)
Low
🔧 Dès l'acquisition, mises à jour fréquentes
💶 Généralement couvert par garantie ou mises à jour logicielles gratuites
S'assurer que le véhicule a les dernières mises à jour logicielles disponibles.
Problèmes de charge (lenteur ou échec)
Medium
🔧 Peut survenir à tout moment
💶 Variable, de la mise à jour logicielle gratuite à 300 – 800 € (composant)
Tester la charge sur différentes bornes, vérifier les mises à jour logicielles du véhicule.
Estimated maintenance costs
| Complete brakes |
£220 – 480 (inclut liquide de frein, inspection, et potentiellement plaquettes/disques sur un essieu si nécessaire) |
| Estimated annual budget |
£180 – 380 |
Indicative estimates (independent garage, UK market). Prices vary by region and year.