Type of spark plug }+ Gap (mm)
CHAMPION 0.95 ± 0.05
EYQUEM 0.95 ± 0.05
NGK 0.95 ± 0.05
the correct part number is 8200587901 (ref. no. 1) for the factory fitted plugs, which are the ngk's
** edit - they are long life plugs, they won't need changed until 40,000 miles. take them out, clean the tips with some emery paper and clean them up. if they are worn badly after this, replace them after you have re-gapped them. to test that they are functioning properly, take the spark plug out with the pencil coil with the engine turned off and ignition off. use some insulated wooden tongs and put the tip of the spark plug up to the engine block or a suitable point, get a friend to turn the ignition on and have a look at the spark. if it's looking weak, they'll need changed.
the plugs will cost you less than ten pounds from a renault dealership, mines were about £8 and change