Recalls: MG EH32 MG4
Overview
OverviewManufacturers, or importers, issue recalls for defects or faults which have the potential to cause injury. Generally, manufacturers will inform the original buyers if their vehicle is subject to a recall and of the steps required to remedy the defect or fault. Please note that the recalls below (if any) are for Australian-delivered vehicles only. Furthermore, the number of recalls should not be taken as an indication of a model’s reliability or its safety more generally.
Recalls: MG EH32 MG4
No recall information is available for the MG EH32 MG4.
Problems and faults: MG EH32 MG4
Overview
OverviewThis section identifies potential problems, causes and fixes based on the experiences of owners and repairers, online sources and technical service bulletins. This information is provided solely for reference purposes and AustralianCar.Reviews recommends that only properly qualified persons carry out repairs or modifications. Furthermore, the number of items below should not be taken as an indicator of a model’s reliability or the frequency with which they may occur.
To report a problem or fault to the AustralianCar.Reviews team, please use the Contact Us form. Note that AustralianCar.Reviews does not offer advice on automotive problems or disputes; such enquiries will not receive a reply. For vehicles purchased from dealers after 1 January 2011, please see our Australian Consumer Law fact sheet.
2023-25 MG EH32 MG4: aggressive Lane Keep Assist (LKA)
For 2023-25 MG EH32 MG4 vehicles, owners have reported that the Lane Keep Assist (LKA) system is overly aggressive, sometimes “wrenching” the steering wheel or making sudden corrections even when the vehicle was in its lane. The LKA system was considered particularly problematic on narrow country roads or where line markings were faded or inconsistent.
This problem has been attributed to the software calibration for the “MG Pilot” suite. The sensors were tuned to be highly sensitive to edge detection, sometimes misinterpreting shadows or road seams as lane departures. In late 2024, MG began rolling out a major ADAS (Advanced Driver Assistance System) update to reduce the severity of these interventions.
MG EH32 MG4: 12V starter battery failure and “bricking”
Owners have reported finding their MG EH32 MG4 vehicle unresponsive, i.e. it could not be started or even unlocked via the electronic handles, due to the 12 volt starter battery draining such that it cannot engage the high-voltage contactors required to power the car. This battery drain has been attributed to a combination of:
- a low-quality factory lead-acid battery; and
- software logic that fails to adequately top up the 12V battery from the main traction battery while the car is parked or being charged at low AC speeds.
To fix, the 12 volt battery needs to be replaced. MG dealers often replace the factory battery with a higher-capacity AGM unit under warranty. Additionally, a software update to the Gateway module and DC-DC converter is required to ensure more aggressive 12V maintenance when the vehicle is idle.
This problem is understood to be most common in 2023 and 2024 MG4 models.
2023-24 MG4 Excite and Essence: Rear motor undertray sagging and deformation
For 2023 and early 2024 MG4 Excite and Essence variants, the protective undertray beneath the rear motor may sag or “balloon” downwards. In severe cases, it can scrape against speed bumps or trap road debris, causing a rhythmic “flapping” or “dragging” noise while driving. This problem has been attributed to:
- the undertray’s composite felt-like material, which can soften when exposed to heat or moisture; and
- the original plastic mounting clips being unable to hold the weight of the tray once the tray lost its rigidity.
Australian MG dealers fixed this problem by installing upgraded metal clips or replacing the sagging tray with a reinforced version. Separately, some MG4 owners have successfully used larger washers as a DIY reinforcement to prevent the tray from pulling through the mounting points.
2023-25 MG4 XPower: steering wheel and floorpan vibration at highway speeds
For 2023-25 MG4 XPower models, owners have reported a persistent and noticeable vibration through the steering wheel and floorpan when travelling at highway speeds (i.e. 100-110 km/h). While wheel balancing has been blamed, many cases have been attributed to a drivetrain harmonic issue or a steering rack resonance inherent to the high-performance powertrain layout of the dual-motor MG4 XPower.
MG has introduced a steering dampener kit as a technical service fix for affected vehicles. However, owners should first ensure a Road Force Balance is performed on the tires, as the MG4 XPower’s 18-inch wheels are highly sensitive to even minor imbalances.
MG4: infotainment system lag and connectivity bugs
For the MG MG4, the central touchscreen can be slow to respond, particularly immediately after the car is turned on. Owners also report frequent “freezing” of the 360-degree camera and disconnections when using wireless Apple CarPlay or Android Auto.
These problems are caused by the “iSmart” software’s heavy processing requirements, which can overwhelm the vehicle’s onboard computer. Furthermore, because the MG4 does not currently support Over-the-Air (OTA) updates in Australia, many cars are running outdated, buggy firmware.
To fix this problem, an MG service centre should perform a manual firmware update (to Version R46 or later). This update significantly improves boot times and stability.
