MG3 Recommended Fluids and Capacities: Essential Maintenance Guide
The MG3, a popular compact car from the iconic British marque, requires proper fluid maintenance to ensure optimal performance, efficiency, and longevity. Understanding the recommended fluids and their capacities is crucial for MG3 owners and mechanics alike. This comprehensive guide delves into the specific fluid requirements for the MG3, providing valuable insights into engine oil, coolant, transmission fluid, and other essential fluids that keep your vehicle running smoothly.Regular maintenance and use of the correct fluids not only enhance the MG3’s performance but also contribute to its reliability and fuel efficiency. Whether you’re a DIY enthusiast or prefer professional servicing, knowing these specifications will help you make informed decisions about your vehicle’s care. From the engine’s lifeblood to the brake system’s vital fluid, each component plays a critical role in the MG3’s overall health and driving experience.
Engine and Cooling System
| Fluid Type | Grade | Capacity |
|---|---|---|
| Engine lubricating oil (after-sales replacement) | C5 0W-20 | 4.1L |
| Engine coolant | Glycol (OAT) | 5.6L |
Transmission and Braking System
| Fluid Type | Grade | Capacity |
|---|---|---|
| Manual transmission fluid | MTF94 | 1.8L |
| Brake fluid | DOT 4 | 0.73L |
Steering and Comfort Systems
| Fluid Type | Grade | Capacity |
|---|---|---|
| Power steering fluid | Dexron III | 0.92L |
| Washer fluid | QK35 | 2.5L |
Climate Control
| Fluid Type | Grade | Capacity |
|---|---|---|
| Air conditioning refrigerant | R1234yf | 470±20g |
Understanding Your MG3’s Fluid Needs
Engine Oil: The Lifeblood of Your MG3
The MG3 requires 4.1 liters of C5 0W-20 engine oil. This specific grade ensures optimal engine protection and efficiency across various operating temperatures. Regular oil changes, typically every 10,000 miles or annually, are crucial for maintaining engine health.
Coolant: Keeping Your Engine at the Right Temperature
With a capacity of 5.6 liters, the glycol-based OAT coolant helps maintain optimal engine temperature. This long-life coolant should be checked regularly and replaced according to the manufacturer’s recommendations, usually every 4-5 years.
Transmission Fluid: Smooth Shifting for Your MG3
The manual transmission in the MG3 uses 1.8 liters of MTF94 fluid. This specialized fluid ensures smooth gear changes and protects transmission components. While it doesn’t require frequent changes, it should be checked during regular servicing.
Brake Fluid: Safety First
The MG3’s braking system uses 0.73 liters of DOT 4 brake fluid. This high-performance fluid maintains its effectiveness under high temperatures and pressures. It’s recommended to replace brake fluid every 2 years to ensure optimal braking performance.
Recommended Fluids and Capacities for MG MG3 Hybrid
Below is a detailed table of the recommended fluids and their capacities for the MG MG3 Hybrid.
| Name | Grade | Capacity |
|---|---|---|
| Engine oil (after-sales replacement), L | C5&SP 0W-20 | 4 |
| Engine coolant, L | Glycol (OAT) | 6.4 (GS62H) / 6.2 (GS64) |
| Drive motor coolant, L | 3.4 | |
| Hybrid transmission oil, L | Castrol BOT794 | 1.5 |
| Manual transmission oil (MT), L | Castrol BOT503 | 1.8 |
| Auto transmission oil (CVT), L | Shell SL-2100 | 6.86 |
| Brake fluid, L | DOT 4 | 0.8 |
| Washer fluid, L | Original MG Motor windscreen washer fluid | 2.5 |
| Air conditioning refrigerant, g | R-1234yf (UK) / R134a (AUS&NZ) | 520 |
Engine Oil
- Grade: C5&SP 0W-20
- Capacity: 4 liters
- Importance: Engine oil lubricates the engine components, reducing friction and wear. It also helps in cooling the engine by dissipating heat.
Engine Coolant
- Grade: Glycol (OAT)
- Capacity: 6.4 liters (GS62H) / 6.2 liters (GS64)
- Importance: Engine coolant prevents the engine from overheating by transferring heat away from the engine block.
Drive Motor Coolant
- Capacity: 3.4 liters
- Importance: This coolant is specifically for the electric drive motor, ensuring it operates within safe temperature limits.
Hybrid Transmission Oil
- Grade: Castrol BOT794
- Capacity: 1.5 liters
- Importance: Transmission oil lubricates the transmission components, ensuring smooth gear shifts and reducing wear.
Manual Transmission Oil (MT)
- Grade: Castrol BOT503
- Capacity: 1.8 liters
- Importance: Similar to hybrid transmission oil, it ensures the manual transmission operates smoothly.
Auto Transmission Oil (CVT)
- Grade: Shell SL-2100
- Capacity: 6.86 liters
- Importance: This oil is crucial for the continuous variable transmission (CVT), ensuring smooth and efficient operation.
Brake Fluid
- Grade: DOT 4
- Capacity: 0.8 liters
- Importance: Brake fluid is essential for the hydraulic braking system, ensuring responsive and effective braking.
Washer Fluid
- Grade: Original MG Motor windscreen washer fluid
- Capacity: 2.5 liters
- Importance: Washer fluid keeps the windscreen clean, ensuring clear visibility.
Air Conditioning Refrigerant
- Grade: R-1234yf (UK) / R134a (AUS&NZ)
- Capacity: 520 grams
- Importance: Refrigerant is essential for the air conditioning system, ensuring it provides cool air efficiently.