Yes the Scenic II like a number of Renaults is let down by annoying niggles and poor after sales service by some Dealers, Renault needs to improve it's build quality and the after sales service is just to hit and miss depending on where you live.
I'm writing as now, finally, I've had the last straw with the Renault Grand Scenic 1.9 dCi I brought from new. A lovely equiped car, let down by the build quaility, electrics and our local awful dealer. So thankfully I've now sold it.
So what went wrong;
Warped brake disk causing the car to judder. Occured since delivery and fixed after 13 mths, when the dealer finally admitted there was a problem which wasn't due to the wheel balance!
Alarm which didn't work due to a known fault with the bonnet catch. Fixed after 1 month - during which time I couldn't lock the car at night as there is no way of disabling the alarm according to the dealer.
Dealer never returned the wheel lock key, and failed to own up to this for 8 mths, until they were suddenly found, along with another set(!), after I refused to leave the dealership (my tires needed changing and I had 2 hours to kill).
Child locks button sometimes worked, amusing.
Electric windows buttons sometimes failed to work, could be fixed by stopping and restarting the car.
Cigar lighter socket which liked to pop out of the dash.
Extemely expensive services charges.
And who would design a family car without a spare wheel. I've had to call out family twice due to the wheel being torn due to rubbish. The puncture kit won't fix these. With an autistic child in the car this isn't funny!
So what can I say. First new car I've brought, but certainly the last Renault I'd ever own. Let down mainly the dealership and secondly the build quality.
Got a SAAB now, the difference is amazing.
Did you contact
Renault Customer Services
and raise your concerns that you had with the vehicle.
Wish you well with your new car.