The MG eMG Scalable C – Electric is a high-output permanent magnet synchronous electric motor system introduced in 2023 for MG's scalable EV architecture. It features a single-speed reduction gearbox and advanced liquid cooling, delivering outputs typically around 180 kW (245 PS) and 350 Nm of torque. This powertrain, developed by SAIC Motor, provides exhilarating acceleration and refined operation, engineered for performance-oriented compact electric vehicles.
Fitted exclusively to the MG4 EV XPower, the eMG Scalable C was engineered for dynamic handling and rapid acceleration, complemented by dual-motor all-wheel drive. Its zero-tailpipe-emission design inherently meets all global standards including Euro 6d-equivalent. Advanced regenerative braking with adaptive control is integrated to maximize energy recovery and enhance driving engagement.
One documented area for attention is the potential for the high-voltage battery thermal management system to trigger precautionary power limitation under sustained high-load conditions, as noted in SAIC Service Bulletin SB-BATT-THERM-02. This is addressed via over-the-air software updates that optimize the battery cooling strategy. Continuous firmware updates have refined motor response and torque vectoring algorithms over the production run.
All production years (2023–Present) for vehicles sold in the UK meet zero-emission vehicle (ZEV) standards (VCA UK Type Approval #VCA/ZEV/MG4XP23).
The MG eMG Scalable C – Electric is a high-performance permanent magnet synchronous motor system engineered for performance EVs (2023-Present). It combines a single-speed reduction gearbox with advanced liquid cooling to deliver instant, high torque and sustained power output. Designed as a zero-emission powertrain, it eliminates traditional exhaust emissions while meeting stringent global environmental regulations.
| Parameter | Value | Source |
|---|---|---|
| Displacement | N/A (Electric Motor) | |
| Fuel type | Electric | |
| Configuration | Permanent Magnet Synchronous Motor | |
| Aspiration | N/A | |
| Bore × stroke | N/A | |
| Power output | 180 kW (245 PS) | |
| Torque | 350 Nm (instantaneous) | |
| Fuel system | N/A | |
| Emissions standard | Zero Tailpipe Emissions (ZEV) | |
| Compression ratio | N/A | |
| Cooling system | Liquid-cooled (motor, power electronics, and battery) | |
| Turbocharger | N/A | |
| Timing system | N/A | |
| Oil type | Gear oil for reduction gearbox (SAE 75W-90) | |
| Dry weight | Approx. 95 kg (motor assembly) |
The high-output motor provides exhilarating acceleration but generates more heat, making the integrity of the liquid cooling system critical for sustained performance. The reduction gearbox oil (SAE 75W-90) should be inspected and replaced per SAIC’s 100,000 km or 8-year schedule. Software updates for the motor and battery control units are frequently released via over-the-air to optimize thermal management and performance mapping.
Oil Specs: Reduction gearbox requires SAE 75W-90 gear oil (SAIC SB-LUB-EV-001). No engine oil needed.
Emissions: Certified as a Zero Emission Vehicle (ZEV) for all markets (VCA Type Approval #VCA/ZEV/MG4XP23).
Power Ratings: Measured under ISO 8854 standards for electric drive systems. Output consistent across model years (SAIC PT-MG-EMG-C-01).
SAIC Technical Information System: Docs TM-EV-EMG-C-02, SB-LUB-EV-001
VCA Type Approval Database (VCA/ZEV/MG4XP23)
ISO 8854: Road vehicles — Electric drive systems — Net power test code
The MG eMG Scalable C – Electric is used in MG's high-performance EV platform with rear-wheel-drive mounting as part of a dual-motor all-wheel-drive system. This motor is a higher-output variant within the Scalable family, sharing its core architecture with the eMG Scalable A but featuring enhanced power electronics and cooling. No significant platform-specific adaptations exist beyond its use in the MG4 XPower. All specifications are documented in OEM technical bulletins.
Locate the motor identification plate on the side of the motor housing, typically near the high-voltage connector (SAIC TIS EV-ID-01). The 8th VIN digit for the MG4 XPower is 'X'. Visually, the motor is similar to the Scalable A unit but is part of a dual-motor system with an additional front motor. Critical differentiation: the presence of the 'XPower' badging and the front electric motor. Service parts for the motor itself are not user-serviceable; only the gearbox and ancillary components have replaceable parts.
The eMG Scalable C's primary system-level focus is managing thermal loads during sustained high-performance driving, documented in SAIC service bulletins. UK DVSA data shows no elevated failure rates for the motor itself. Neglecting scheduled gearbox oil changes or ignoring thermal management warnings can lead to reduced performance or system faults, particularly under track or aggressive driving conditions.
Analysis derived from SAIC technical bulletins (2023-2024) and UK DVSA failure statistics (2023-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MG EMG-SCALABLE-C-ELECTRIC.
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