MG MG4 eléctrico (MG4, ZS EV, Marvel R) 51, 64 and 77 hp problems
The MG MG4 used the eléctrico (MG4, ZS EV, Marvel R) from 2022 (MG4 Electric Standard Range 51 kWh, MG4 Electric Long Range 64 kWh and MG4 Electric Extended Range 77 kWh). 2 documented faults affect it; the most important is “charging faults: on-board charger and interrupted charging” (medium severity, occasional). Our verdict: “With caution”.
Engine score on this car
8.0 out of 10Good reliability
Only counting the faults that affect the versions and years of the MG4. How we calculate it
Overall score for the MG MG4
7.3 out of 10Acceptable reliability
Engines, gearbox, suspension, brakes, electronics and the rest of the car. See breakdown
MG eléctricos: MG4 (plataforma MSP, baterías de 51 a 77 kWh), ZS EV (44,5 a 72,6 kWh) and Marvel R (70 kWh) · Electrical
- Names
- MG4 Electric Standard Range 51 kWh · MG4 Electric Long Range 64 kWh · MG4 Electric Extended Range 77 kWh · MG4 XPower
- Faults that affect it
- 2 · 1 of high or critical severity
Verdict for the versions it uses
MG4 Standard Range 51 kWh LFP, 170 hp (2022-present)since 2022 · 170 hp
With cautionWhat Car? places the MG4 among the less reliable electric cars in its UK survey, mainly for minor electrical faults; for the 51 kWh version no specific battery or motor faults are documented.[3]
MG4 Long Range 64 kWh, 204 hp (2022-present)since 2022 · 204 hp
With cautionIt is the version with the most testimonies: fiches-auto records 47 reviews of the 204 hp one, with charger and battery faults among those cited; test AC and DC charging before buying.[4]
MG4 Extended Range 77 kWh, 245 hp (2023-present)since 2023 · 245 hp
With cautionWe have not seen testimonies specific to this version in open sources; the general MG4 data applies: verify charging and campaigns.[3][4]
MG4 XPower 64 kWh, 435 hp (2023-present)since 2023 · 435 hp
With cautionA German owner describes repeated faults in the car's control system with loss of charge on an XPower; it is an isolated case, but it shows that workshop history should be demanded.[5]
Faults that affect the MG4
- Medium severityFrequency: OccasionalChargingCharging faults: on-board charger and interrupted chargingOn the MG4, ZS EV and Marvel R there are owners who see AC charging rejected or interrupted; fiches-auto attributes it to the on-board charger or its software. It is an occasional issue, not a systemic one.
- High severityFrequency: RarePower electronicsHigh-voltage system fault warning and loss of propulsionIsolated cases have been documented of MG4 and ZS EV cars going into limp mode or losing propulsion with high-voltage system warnings. They are scattered testimonies, with no official diagnosis or campaign.
All versions and faults of the MG eléctrico (MG4, ZS EV, Marvel R)
What to check before buying a used MG MG4 eléctrico (MG4, ZS EV, Marvel R) 51, 64 and 77 hp
Each point comes from a documented fault that affects this car. You can tick them off as you inspect it.
If it has the MG eléctrico (MG4, ZS EV, Marvel R) (since 2022)
Faults of the MG MG4 outside the engine
Suspension, brakes, electronics and the rest of the car: they occur with any engine.
- High severityFrequency: OccasionalAirbags and safetyOversensitive driver assistance (sudden braking, lane warning)In an Autopista test, the MG4's adaptive cruise control braked sharply several times for no real reason on detecting cars in adjacent lanes, and the lane keeping and drowsiness warning proved excessively sensitive; fiches-auto.fr records similar complaints from owners.
- High severityFrequency: OccasionalElectronics and infotainmentCentral locking and keyless entry that are unreliable (super-lock)In 2022 the British DVSA recorded a recall of 1,960 MG4s because the car could lock its doors when stopped, with them unable to be opened either from inside or outside; the fix is a software update. fiches-auto.fr adds reports of erratic openings.
- Medium severityFrequency: RareElectrical systemAbnormal 12 V battery drainSeveral owners describe the MG4's 12 V auxiliary battery draining abnormally while the car is parked, which can leave it unable to open the doors or start its on-board systems, according to a French compilation of testimonies.
- Low severityFrequency: OccasionalElectronics and infotainmentCentral screen freezes and restartsIt is the most frequently cited problem among the MG4 owners consulted by fiches-auto.fr: the central screen freezes, restarts by itself or goes black, with temporary loss of the rear camera, navigation or the car's settings.
- Low severityFrequency: OccasionalBodywork and interiorFragile paint and rust in body weldsAmong the 87 reports on fiches-auto.fr, fragile paint is one of the most frequently mentioned complaints about the MG4, with some cases of rust in subframe welds; What Car? also includes the bodywork among the fault areas in its British survey.
Buying a MG MG4 eléctrico (MG4, ZS EV, Marvel R) 51, 64 and 77 hp?
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The MG MG4 has one documented recall or campaign. See which ones and how to find out if they affect you
Frequently asked questions
Is the MG MG4 eléctrico (MG4, ZS EV, Marvel R) 51, 64 and 77 hp reliable?
The MG MG4 used the eléctrico (MG4, ZS EV, Marvel R) from 2022 (MG4 Electric Standard Range 51 kWh, MG4 Electric Long Range 64 kWh and MG4 Electric Extended Range 77 kWh). 2 documented faults affect it; the most important is “charging faults: on-board charger and interrupted charging” (medium severity, occasional). Our verdict: “With caution”.
What faults does the MG MG4 eléctrico (MG4, ZS EV, Marvel R) 51, 64 and 77 hp have?
The documented ones that affect this car are: charging faults: on-board charger and interrupted charging (medium severity) and high-voltage system fault warning and loss of propulsion (high severity).
Own a MG MG4 eléctrico (MG4, ZS EV, Marvel R) 51, 64 and 77 hp? Tell us what faults you have had and at how many kilometres. Report your fault.
Sources
Every fact on this page links to its source. If you find an error, let us know.
- MG4 EVWikipedia · Other source · consulted 30 October 2026
- Datos generales MG MG4 Electric Luxury (05/23 - 07/25)ADAC · Technical documentation · consulted 30 October 2026 · in German
- Used MG4 2022-present reliabilityWhat Car? · Reliability study · consulted 30 October 2026
- Fiabilité Mg MG4 (2023): toutes les pannes connuesFiches-auto.fr · Reliability study · consulted 30 October 2026 · in French
- Foro GoingElectric: MG4 XPower con fallo del sistema de control y sin cargaGoingElectric · Owners' forum · consulted 30 October 2026 · in German