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MG4 Facelift 437 Smart Fun Parts Catalog & Part Numbers

Full specification and parts identification for the MG4 Facelift 437 Smart Fun — MG4, model year 2026.

CSA700****** Battery electric (BEV) ≈ US$12,600 On sale
MG4 Facelift 437 Smart Fun parts — quick answer. This exact variant is identified by the homologation model code CSA700****** and belongs to the 2026 model year of the MG4. It runs 205/50 R17. Battery capacity is 42.8 kWh. Drive motor code TZ180******. More than one trim can share a model year — always confirm the code before ordering, because battery, brake and lamp part numbers change between variants.
Vehicle classCompact car
PowertrainBattery electric (BEV)
Battery capacity (kWh)42.8
CLTC electric range (km)437
Front motor model codeTZ180******
Front tyre size205/50 R17
Front brakesVentilated disc
Front suspensionMacPherson strut, independent

Specification overview — MG4 Facelift 437 Smart Fun

Key overview parameters for this trim. Prices are Chinese domestic manufacturer guide prices, converted to US dollars at 1 US$ = ¥7.10 for orientation only — they are not export prices or local-market prices. Identifying codes — homologation model codes, motor and engine codes, manufacturer and supplier names — are published with their tail masked, so a build can still be matched without republishing the full record.

Overview

Homologation model code (MIIT)CSA700******
Sales statusOn sale
Manufacturer list price (China, US$)≈ US$12,600
Vehicle classCompact car
PowertrainBattery electric (BEV)
Market launch2026.04
CLTC electric range (km)437
DC fast-charge time (h)0.33
Fast-charge SOC window (%)30–80
Max power (kW)120
Max torque (N·m)250
Body style5-door 5-seat Hatchback
Motor output (PS)163
Length × width × height (mm)4395*1842*1551
0–50 km/h (s)3
Top speed (km/h)160
Electricity-equivalent consumption1.27
Vehicle warranty6 years or 150,000 km
Kerb weight (kg)1415
Gross vehicle weight (kg)1850
Looking for the complete specification? The full parameter tables — body & dimensions, drive motor, battery & charging, transmission, chassis, brakes, wheels and every equipment detail — are available in the EVcoder app. Download the app to view all specs →
Parts by system

Parts for this MG4 variant

The live specification of this trim is shown against each system so the assembly can be matched without guessing.

Battery & BMS

Battery modules, BMS controller boards, contactors, current sensors, busbars, pack seals and HV harnesses.

Battery chemistry: LFP (lithium iron phosphate)Battery capacity (kWh): 42.8Cell supplier: REPT Battero ***

Charging & HV

On-board charger, DC/DC converter, charge inlets, HV cabling, service-disconnect units and charge-port flaps.

DC inlet location: left front of vehicleAC inlet location: left front of vehicleV2L AC output (kW): 3.3

Drive motor & reducer

Traction motors, inverters, single-speed reducers, drive shafts, half-shafts, motor mounts and cooling lines.

Front motor model code: TZ180******Motor type: Permanent-magnet synchronous (PMSM)Total motor power (kW): 120

Thermal management

Heat-pump compressors, PTC heaters, chillers, coolant pumps, radiators, expansion tanks and battery cooling plates.

Heat-pump climate control: YesBattery cooling: Liquid-cooledClimate control: Automatic climate control

Brakes & wheels

Calipers, pads, discs, EPB actuators, brake lines, ABS sensors, wheel bearings, rims and tyres.

Front brakes: Ventilated discRear brakes: DiscParking brake: Electric parking brake (EPB)

Suspension & steering

Dampers, springs, control arms, ball joints, subframes, anti-roll bars, steering racks and tie-rod ends.

Front suspension: MacPherson strut, independentRear suspension: Torsion beam, semi-independentSteering assist: Electric power steering (EPS)

Body & glass

Bumpers, fenders, doors, hoods, tailgates, grilles, mirrors, windscreens, side glass and weatherstrips.

Length (mm): 4395Width (mm): 1842Height (mm): 1551

Lighting

Headlamp assemblies, tail lamps, fog lamps, daytime running lights, light controllers and levelling motors.

Low beam: LEDHigh beam: LEDLED daytime running lights: Yes

Interior & climate

Seats, dashboard trim, screens, switches, HVAC blowers, filters, vents and interior panels.

Upholstery: Synthetic leatherClimate control: Automatic climate control

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Parts diagrams

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Homologation model codes for this trim

CSA700******

Other trims of the 2026 MG4

Other model years

Frequently asked questions

What is the homologation model code of the 2026 MG4 Facelift 437 Smart Fun?
The MG4 Facelift 437 Smart Fun is homologated under CSA700******. This code identifies the exact build and is the most reliable reference when ordering parts for a Chinese-market vehicle.
What tyres does the MG4 Facelift 437 Smart Fun use?
The MG4 Facelift 437 Smart Fun runs 205/50 R17. Always match the load and speed rating of the original fitment — EV tyre requirements differ from equivalent-size ICE tyres.
What is the battery capacity of the MG4 Facelift 437 Smart Fun?
Battery capacity is 42.8 kWh, LFP (lithium iron phosphate), supplied by REPT Battero ***. Capacity matters for parts: battery modules, BMS firmware and cooling plates differ between capacity variants.
Which motor does the MG4 Facelift 437 Smart Fun use?
The drive motor code is TZ180******, rated 120. Motor and inverter part numbers are matched to this code — mixing codes across variants will not fit.
How do I identify a part on this exact MG4?
Decode the VIN to confirm the model year, trim and market build, then either read the number off the component or search the exploded diagrams by system. VIN decoding and diagram browsing both run in the EVcoder app.

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