I have just changed the plugs on my 2004 "new" Scenic. 1.Remove the plastic cover over the engine. 2. Remove the plug in leads on top of the coil 3. Undo 10mm bolt holding coil and withdraw gently. 4. The plug is a long way down so you need a good socket set and correct plug spanner to reach it. Mine came out quite easily and replacement was the reverse. The coils are prone to failure and are replaced by Renault f.o.c.
Alan Larrett, August 2007
