Extracted from an internal document leaked from the social networks (on Facebook).
The document explains how technology works and what problems can happen for some situations.
This is a bit annoying but MG Motor admits the powertrain has some defects and that fixes are already applied for the ZS Hybrid+ and that the MG3 (which is lighter and less impacted by power losses) will have an update soon, and that the update from September 24 already improved things a bit.. So let's continue the updates and we gotta follow what's coming next ! So our MG3s can improve again.
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Reminder of how Hybrid+ technology works
Thanks to its generous 1.83kWh battery and the adoption of a powerful electric motor, directly connected to the wheels, Hybrid+ technology stands out in 4 major aspects:
1. A driving experience close to an electric vehicle
2. Excellent soundproofing
3. Excellent level of performance
4. Remarkable efficiency
As a reminder, a training course dedicated to Hybrid+ technology is available on your MG Academy training platform.
The architecture of the Hybrid+ technology is designed in such a way that the main traction motor is the electric motor. The combustion engine, for its part, acts as a generator to recharge the battery and supports the electric motor at medium/high speed (parallel hybrid/direct propulsion). Thus, between 0 and approximately 40 km/h: it is only the electric motor that is responsible for driving the wheels.
Power loss phenomenon
During heavy use or intensive driving on roads with steep and long gradients, a loss of power may occur, since the combustion engine must come into action to recharge the battery and/or drive the wheels.
When the battery is discharged - at low speed (between 0 and approximately 40 km/h):
The electric motor is the only traction motor between 0 and 40 km/h. When the battery is discharged, the thermal engine must recharge it through the generator. The power transmitted to the electric motor is therefore that of the generator, i.e. 45kW (approximately 60hp).
When the battery is discharged - at medium/high speed:
The combustion engine is now engaged with the wheels, but the electric motor is no longer engaged or only very little if the battery is discharged. Thus, the power of the combustion engine (75kW or 102hp) is therefore shared between the propulsion of the vehicle and the recharging of the battery via the generator (45kW or 61hp). As a result, the available power may temporarily drop.
As soon as the battery reaches a sufficient charge level (more than 2 bars), this phenomenon disappears and the vehicle regains its initial performance.
Customer case management
First of all, it is imperative to clearly present the benefits and operation of Hybrid+ technology to your customers, explaining the phenomenon of temporary power loss that can be felt in the driving conditions explained above. All this with the aim of giving precise answers to your customers who may be regularly confronted with this phenomenon (daily mountain driving for example), and reassure those who experience it little or not at all (urban driving, or on roads with few hills).
In addition, we are pleased to announce that an update is already available for the ZS Hybrid+ on the After-Sales side. This update must be carried out as part of your new vehicle deliveries under the code PD052. If the vehicle has already been delivered, a standard update of the calculators must be carried out.
This update will significantly reduce this phenomenon during medium/high speed phases, by optimizing the battery recharge phases. In short, it will increase everyday comfort, especially during driving phases with long differences in altitude.
The MG3 Hybrid+, less affected by this phenomenon, has also benefited from an update since September 2024 (No. SI-TB2024110101). Our Research and Development center regularly develops new updates and we will keep you informed as soon as new updates are available.
Please share all of this information with your Sales and After-Sales teams.
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