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ZS EV 44.5 kWh, 143 hp (2019-2021) engine: faults and reliability

MG eléctricos: MG4 (plataforma MSP, baterías de 51 a 77 kWh), ZS EV (44,5 a 72,6 kWh) and Marvel R (70 kWh) version

With caution

A documented case on a British forum of traction battery failure on a 2019 ZS EV with low mileage; it is a single testimony, but it advises asking for a battery condition report.[1]

Years
2019–2021
Power
143 hp
Faults that affect it
2
1 of high or critical severity
Cars that use it
1
in our database

3 sourcesHow we work

What changes in this version

First electric version of the ZS, with a 44.5 kWh NMC battery and a 105 kW (143 hp) front motor and 350 N·m.[2]

Faults of the ZS EV 44.5 kWh, 143 hp (2019-2021) engine

The documented engine faults that affect this version and its years, from most to least important.

  1. 1Medium 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.
  2. 2High 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.

Cars fitted with the ZS EV 44.5 kWh, 143 hp (2019-2021) engine

Open each car to see all its faults with this engine and what to check before buying it.

MG

  • MG ZS IZS EV · ZS EV Standard Range · ZS EV Long Range2019–2024[2][3]

Frequently asked questions

Is the ZS EV 44.5 kWh, 143 hp (2019-2021) engine reliable?

Our verdict is “With caution”. A documented case on a British forum of traction battery failure on a 2019 ZS EV with low mileage; it is a single testimony, but it advises asking for a battery condition report.[1]

What faults does the ZS EV 44.5 kWh, 143 hp (2019-2021) engine have?

The documented ones that affect this version, by importance: charging faults: on-board charger and interrupted charging (medium severity) and high-voltage system fault warning and loss of propulsion (high severity).

Which cars use the ZS EV 44.5 kWh, 143 hp (2019-2021) engine?

MG ZS I (2019–2024).[2][3]

Are you buying a car with the ZS EV 44.5 kWh, 143 hp (2019-2021) engine?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which 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.

  1. Foro MGEVs: batería de tracción de un ZS EV de 2019 averiada con menos de 22.000 millasMGEVs.com · Owners' forum · published 26 August 2025 · consulted 30 October 2026
  2. MG ZS (crossover): sección MG EZS / ZS EVWikipedia · Other source · consulted 30 October 2026
  3. Fiabilité Mg ZS: toutes les pannes connuesFiches-auto.fr · Reliability study · consulted 30 October 2026 · in French