Hi there, I've come on to this site because of the exact same problem that my dad is having with his car - he's 70 years old and doesn't use a computer so i'm looking into it for him. he also had a 2005 scenic 1.5dci (90psi) from new and was getting the same kind of fuel consumption as you did - he bought a new scenic 1.5dci 106 in Oct 2010 and the mpg is approx 23mpg - he's been very tolerant so far about it. the car went back in to the dealership when my dad queried the poor MPG so they could check it for a fault but the car was returned to him with no fault found and the same problem continuing.
Can any one help? got this car (2010) with 3068 miles on it as below:
Overall Miles 3068 – 3820 = 752 miles
Litres used 122.14 = 26.55 Gal.
752 miles ÷ 26.55 gal = 28.32 MPG
I have only done 800miles since getting it.
I have had a Scénic 15DCI for 5 years from new previously traded in for this one, and got 55mpg-59mpg and can not see why I cannot get the same or slightly less MPG (ie 50mpg) has anyone else had this problem?
Please help I was made redundant and now cannot afford to waste money.