Monaco has introduced a new safety check for electric and hybrid vehicles as part of an update to its technical inspection system, reflecting the rapid growth of low-emission cars across the Principality.
Since March 21, 2026, inspections now include a visual check of the coolant level used to regulate the temperature of traction batteries in both fully electric and hybrid models, whether plug-in or not. The move is designed to catch potential issues early, even in cases where there are no visible leaks.
Until now, inspections focused largely on identifying leaks within the cooling system. By expanding this to include fluid levels, authorities aim to reduce the risk of battery damage and prevent overheating incidents, which can have serious safety implications. The measure also helps protect battery performance and longevity, ultimately preserving the vehicle’s value.
If a low coolant level is detected during the inspection, it must be corrected by a qualified automotive professional. For safety reasons, the reservoirs are sealed, meaning they cannot be topped up by the vehicle owner. Any follow-up inspection required after this adjustment will be carried out free of charge.
This update forms part of a broader effort by Monaco’s government to keep regulations in step with changes in the automotive landscape. Additional technical adjustments have also been introduced, including updates related to the onboard emergency call system, known as eCall, further checks on certain structural components, and stricter verification of documentation for specialised transport vehicles.
Despite these changes, officials have confirmed that the cost of the technical inspection will remain unchanged.