🧪Fluid Capacities
BMW i8 Fluid Capacities
All fluid capacities for your BMW i8: engine oil, coolant, transmission fluid, brake fluid, power steering, and more.
Quick Answer
The BMW i8 requires multiple fluids maintained at specific levels. Engine oil, coolant, transmission fluid, brake fluid, and power steering fluid all have different capacities depending on your engine and model year.
2015-2020
2015-2020Engine OilVaries by engine — check owner's manual (typically 4-8+ quarts)
Coolant (total system)6.0 - 10.0 quarts
Transmission Fluid3.5 - 4.0 quarts (drain & fill) / 7-9 quarts (total)
Brake FluidDOT 3 or DOT 4 — ~1 quart for full flush
Power Steering FluidElectric power steering — no fluid needed
Windshield Washer~1 gallon
Notes
- →Never mix different types of coolant — flush completely when changing brands
- →Many newer models use electric power steering — no power steering fluid required
- →Transmission fluid should be checked with the engine running and at operating temperature
- →Brake fluid absorbs moisture over time — replace every 2-3 years regardless of mileage
2014-2014
2014-2014Engine OilVaries by engine — check owner's manual (typically 4-8+ quarts)
Coolant (total system)6.0 - 10.0 quarts
Transmission Fluid3.5 - 4.0 quarts (drain & fill) / 7-9 quarts (total)
Brake FluidDOT 3 or DOT 4 — ~1 quart for full flush
Power Steering FluidATF or manufacturer-specific — ~1 quart
Windshield Washer~1 gallon
Notes
- →Never mix different types of coolant — flush completely when changing brands
- →Transmission fluid should be checked with the engine running and at operating temperature
- →Brake fluid absorbs moisture over time — replace every 2-3 years regardless of mileage
Frequently Asked Questions
- How much coolant does a BMW i8 hold?
- The BMW i8 cooling system holds 6-10 quarts total depending on the engine. A drain-and-fill replaces about 50-60% of the coolant. For a complete flush, you'll need the full capacity amount.
- What type of transmission fluid does a BMW i8 use?
- The BMW i8 transmission fluid type depends on whether it's an automatic or manual transmission and the model year. Always use the manufacturer-specified fluid — check your owner's manual for the exact ATF or manual transmission fluid required.
- Does a BMW i8 have power steering fluid?
- 2015+ BMW i8 models with electric power steering don't use power steering fluid. Older models with hydraulic power steering use ATF or manufacturer-specific fluid — check your owner's manual.
- What brake fluid does a BMW i8 use?
- Most BMW i8 models use DOT 3 or DOT 4 brake fluid. DOT 4 has a higher boiling point and is preferred for performance driving. Never use DOT 5 (silicone-based) in a system designed for DOT 3/4.
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