Lamborghini SIÁN Roadster

Power steering fluid capacity & service interval

Lamborghini SIÁN Roadster power steering fluid capacity ranges from 0,3 to 1,7 liters. Service intervals require a check every 15000 km. 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)
  • System, front suspension leveling
  • Use: Normal
  • Capacity 0,3 liter
  • Check 15000 km
SIÁN Roadster (2021-2022)
  • Use: Normal
  • Capacity 1,7 liter
  • Check 15000 km

Additional Notes

  • The Lamborghini SIÁN Roadster runs two distinct fluid systems relevant to steering and suspension: a hydraulic system serving front suspension leveling, and a dedicated power steering system, each carrying its own separate fluid capacity.
  • The front suspension leveling hydraulic system holds 0.3 liter, a notably small volume that reflects a self-contained circuit rather than a shared or high-volume reservoir.
  • The power steering system carries 1.7 liters, a capacity consistent with a full hydraulic rack-and-pinion or hydraulic-assist setup requiring a meaningful fluid reserve to sustain operating pressure.
  • Both systems share the same check interval of 15,000 km under normal use conditions, meaning fluid level and condition inspections for both circuits fall on the same service schedule.
  • The 15,000 km check interval applies to normal use across both the 2021-2022 model years, with no differentiation in interval between the two years listed.
  • The gap between 0.3 liter and 1.7 liter across the two systems underscores that a technician servicing one circuit cannot assume the fluid volume or behavior of the other, as the two operate independently within the vehicle.

Other Systems