Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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2021 BMW 230i 2D Convertible
Quick Lookups: Fluids
2021 BMW 230i 2D ConvertibleSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Refrigerant | 1.20 LBS. | 0.54 KG | R-134a Part No. 83 19 9 408 386. R1234yf Part No. 83 19 2 354 790 | The nameplate in the engine compartment indicates which refrigerant has been used. | S | ||
| Automatic Transmission Fluid | 9.30 QTS. | 8.8 L | Automatic Transmission Fluid ATF+3 | S | |||
| Brake Fluid | N/A | N/A | BMW Brake Fluid DOT 4 with low viscosity | S | |||
| Differential Gear Oil | Rear Axle | N/A | N/A | Hypoid Axle Oil G3 (Fuchs Titan EG 4218) Only for Rear differential, not for hang-on clutch (HOC) | BMW Part No. 83 22 2 365 988. | S | |
| Engine Coolant | Automatic Trans | High Temperature Coolant Circuit | 8.56 QTS. | 8.1 L | Frostox HT-12 antifreeze and corrosion inhibitor | Top-up quantity of coolant in the event of repair with disconnected collant hoses. Observe the mixture ration and filling level. (2.11 qts). | S |
| Engine Coolant | Low Temperature Circuit | 3.80 QTS. | 3.59 L | Frostox HT-12 antifreeze and corrosion inhibitor | Top-up quantity of coolant in the event of repair with disconnected collant hoses. Observe the mixture ration and filling level. (2.11 qts). | S | |
| Engine Oil | 5.60 QTS. | 5.29 L | BMW High Performance Synthetic Engine Oil, SAE 0W-20 | S | |||
| Manual Transmission Fluid | Dry Transmission (Empty) | 1.47 QTS. | 1.39 L | Manual Gearbox Oil MTF-LT-5 | BMW Part No. 83 22 2 156 969. | S | |
| Manual Transmission Fluid | Oil Capacity | 1.37 QTS. | 1.29 L | Manual Gearbox Oil MTF-LT-5 | BMW Part No. 83 22 2 156 969. | S | |
| Windshield Washer Fluid | N/A | N/A | Fill with water and - if required - with a washer antifreeze (according to manufacturer's recommendations). Mix the washer fluid before adding it to the reservoir. | S | |||
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.