Why does the serv light stay on in a 2000 clio?

The "serv" light on a 2000 Renault Clio typically indicates a general fault or warning in the vehicle’s systems, such as issues with the engine, brakes, or other critical components. It can also be triggered by low fluid levels or a malfunctioning sensor. To diagnose the exact cause, a diagnostic tool should be used to read any error codes from the vehicle's onboard computer. It's advisable to consult a mechanic if the light remains on, as ignoring it could lead to more significant issues.