renault clio SERV light on but no fault codes recorded?

you may have to take the car to Renault for a diagnostic, you say that you have a code reader but it probably only reads GENERIC codes were as the Renault reader will read in more detail and codes only used by Renault.

Renault Fault Codes

It may be a problem with the ECU itself. I had a problem in my Peugeot where the engine management light kept coming on and my car kept conking out, but no error codes were recorded, even after getting a mechanic from Pug in.. Turned out it was a fuse feeding the ECU or something, so when the engine conkied out, the ECU wasn't working and so wasn't recording the error codes!

sorry but cheap code readers are like cheap coffee,not worth the cash.if the mil is on a code or codes is logged.you have 2 choices.buy a new functional code reader from a reputable source(not one of those chinese firecrackers).or take it to a good indipendant for diagnosis.so far your ok as the mil is not flashing but it will and that is a cat destroying warning.

Is that not supposed to tell you that a service is due? There probably aren't any faults to be disclosed. Just have it serviced and the light reset.

its not just a service reminder. i dont know why its coming on though.