MG4, HS II & MGS5 Rear Brake Discs – 300mm
These rear brake discs are a direct replacement for the MG 4, HS II and MGS5 electric and PHEV/hybrid models. With a 300 mm diameter, solid construction and coated surface, they deliver reliable braking performance and excellent corrosion protection — ideal for UK roads and weather conditions.
Designed to work seamlessly with regenerative braking systems, these discs experience less wear than conventional brakes, helping to reduce brake dust and extend service life while maintaining strong stopping power when needed.
Key Benefits
- Reliable braking performance for EV and PHEV models
- Solid construction optimised for regenerative braking
- Coated surface for corrosion protection
- Direct fit replacement
- High-quality aftermarket construction
Specifications
- Outer Diameter: 300 mm
- Brake Disc Thickness: 12 mm
- Minimum Thickness: 10 mm
- Brake Disc Type: Solid
- Surface: Coated
- Centre Diameter: 65 mm
- Height: 48.3 mm
- No. of Wheel Bolt Holes: 5
Compatibility
Fits the following MG models:
- MG 4 I (2022 onwards) – 99 kW to 180 kW EV variants
- MG HS II (2024 onwards) – 1.5 PHEV and Hybrid+ variants
- MGS5 (2025 onwards) – 125 kW EV variant
Replaces MG part number: 10464822
Installation
Professional installation recommended. Always replace brake discs in pairs and bed in new discs correctly for optimal performance and safety.
Pro tip: Replace the rear brake pads at the same time as the discs for balanced braking and best long-term results.
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Technical Specifications
| Attributes | |
|---|---|
| Brake Disc Thickness | 12 mm |
| Brake Disc Type | solid |
| Centre Diameter | 65 mm |
| Height or Thickness | 48,3 mm |
| Minimum Thickness of Brake Disc | 10 mm |
| No. of Fixing Holes | 5 |
| No. of Wheel Bolt/Stud Holes | 5 |
| Outer Diameter | 300 mm |
| Pitch Circle Diameter | 112 mm |
| Surface | Coated |
| Suitable to replace | Reference(s) |
|---|---|
| Audi | 3Q0 615 601 A | 3Q0 615 601 |
| CUPRA | 3Q0 615 601 A |
| Ford | 2 587 062 | VWN3CA-2A315-AA |
| MG | 10464822 |
| Roewe (Saic) | 10464822 |
| Seat | 3Q0 615 601 A | 3Q0 615 601 |
| Škoda | 3Q0 615 601 A | 3Q0 615 601 |
| Volkswagen (VW) | 3Q0 615 601 A | 5QN 615 601 | 3Q0 615 601 |
Fits the Following MG Models
| Model | Submodel |
|---|---|
| MG 4 I (CS) 2023 – | (E) – 125 kW / 170 hp |
| MG 4 I (EH) 2022 – | (E) – 125 kW / 170 hp |
| MG 4 I (EH) 2022 – | (E) – 150 kW / 204 hp |
| MG 4 I (EH) 2022 – | (E) – 180 kW / 245 hp |
| MG 4 I (EH) 2022 – | (E) – 99 kW / 135 hp |
| MG 4 II (NA) 2025 – | (E) – 120 kW / 163 hp |
| MGS5 (ZS) 2025 – | (E) – 125 kW / 170 hp |
MG4, HS II & MGS5 Rear Brake Disc FAQs
Which MG models do these rear brake discs fit?
Fits MG 4 I (2022+), MG HS II (2024+ PHEV/Hybrid), and MGS5 (2025+). Please provide your vehicle registration number for exact confirmation.
Is this a single disc or a pair?
This is a single disc. Order two discs to replace both sides of the rear axle.
Should I replace the pads at the same time?
Yes – it is highly recommended to replace discs and pads together for balanced braking performance and safety.
Do I need a wheel alignment after fitting?
No – brake disc replacement does not normally require a wheel alignment.
Is this an original MG part or aftermarket?
This is a high-quality aftermarket brake disc that matches original specifications and performance.
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