MINI MINI Roadster, R59 (USA)
Coolant capacity & service interval
The MINI Roadster, R59 (USA) requires coolant with a capacity of 7.5 liters. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| MINI Roadster John Cooper Works (155 kW) (2012-2015) |
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| MINI Roadster Cooper (90 kW) (2011-2015) |
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| MINI Roadster Cooper S (135 kW) (2011-2015) |
|
| MINI Roadster John Cooper Works (155 kW) (2011-2012) |
|
Additional Notes
- The MINI Roadster R59 (USA) cooling system capacity is 7.5 liters across all listed configurations, covering the Cooper (90 kW), Cooper S (135 kW), and John Cooper Works (155 kW) variants from 2011-2015.
- A 7.5-liter cooling system capacity is a relatively modest figure, consistent with the compact engine bays typical of small two-seat roadsters, where the total circuit volume includes the engine block, cylinder head passages, radiator, heater core, and expansion tank.
- The Cooper (90 kW) and Cooper S (135 kW) share an identical 7.5-liter cooling system capacity despite a 45 kW difference in output, indicating no variation in coolant circuit volume between those two power levels.
- The John Cooper Works (155 kW) variant appears across two overlapping year ranges, 2011-2012 and 2012-2015, both carrying the same 7.5-liter capacity under normal use conditions.
- All cooling system capacities listed are designated for normal use conditions, which in fluid service contexts typically refers to standard operating environments as opposed to severe or extended-duty cycles.
- The uniform 7.5-liter figure across all three power variants suggests the R59 platform uses a shared cooling circuit architecture regardless of engine tune, with capacity remaining constant from the base Cooper through the John Cooper Works specification.