Lamborghini SIÁN Roadster

Coolant capacity & service interval

Lamborghini SIÁN Roadster coolant capacity ranges from 1,1 to 25 liters. Service intervals include checks every 15000 km and fluid changes every 24 months. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
SIÁN Roadster (2021-2022)
  • Use: Normal
  • Capacity 25 liter
  • Check 15000 km
  • Change 24 months
  • SIÁN Roadster (2021-2022)
  • Electric motor
  • Use: Normal
  • Capacity 1,1 liter
  • Check 15000 km
  • Change 24 months

Additional Notes

  • The Lamborghini SIÁN Roadster carries two separate coolant capacities across its cooling architecture: 25 liters for the main cooling system and 1.1 liters for the electric motor cooling system.
  • A 25-liter main cooling system capacity is a substantial figure, reflecting the thermal demands of a high-displacement combustion engine operating under normal use conditions.
  • The 1.1-liter electric motor cooling circuit is a dedicated loop, kept entirely separate from the primary 25-liter system, which is consistent with hybrid powertrain designs that isolate high-voltage component cooling.
  • Both the main cooling system and the electric motor cooling system share identical service intervals under normal use: a check every 15,000 km and a fluid change every 24 months.
  • The 24-month change interval applies regardless of distance traveled, meaning calendar time alone can trigger a coolant change before the 15,000 km check interval is reached.
  • The check interval of 15,000 km applies to both circuits under normal use conditions, indicating routine inspection of coolant level and condition at that mileage threshold for the 2021-2022 model years.

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