Hi I have a renualt scenic fidji 1.9 DCI.
which has a rough idle between 500-1000 revs
It only happens when car is stationery. The car still drives fine.
I have had it on a local garages diagnostic machine came up glow plugs. Which were replaced Waste of money.
Idle problem still has not gone.
Some one said something about give the
valve a clean if so is this easy to do and how.
Any other ideas of what it could be
Want to sell car in good working order.