Alternator bad or wiring fault to alternator.
battery is loosing power, probably there is power thief
Your alternator is defective and not recharging the battery. Have the alternator checked.
After a repair has been made on a Renault Laguna the service light will need to be reset. To do this plug the diagnostic tool into the computer and reset the light.
you need a new alternator/belt
its the tyre pressure sensor
To change the dashboard light in a 1995 Renault Laguna, first, disconnect the car battery to ensure safety. Remove the dashboard cover by unscrewing the necessary screws and gently prying it off. Locate the bulb holder behind the dashboard, twist it to remove, and replace the old bulb with a new one. Finally, reassemble the dashboard and reconnect the battery.
changeing side light bulb
Behind front off side light in engine bay, in Laguna 11 Hatchback 1.8ltr
How to remove drivers' side light cover
Try asking at www.renaultforums.co.uk :-)
under the engine beside the paseneger wheel, blue connector
Bring to a shop that has an ABS scanner to determine the problem