Hey Guys

I had my car serviced less than 10 months ago and everything works fine except this past few weeks I am seeing "Service Required" sign and the ride has been bumpy. Otherwise the car runs perfectly.

I made the mistake of filling up my 2012 Range Rover Sport with mid-grade instead of Premium a few times, Im not sure if the problem is related. But I have filled the tank premium a few times since then.

The car runs perfectly fine otherwise except the ride is not smooth as it used to be. It rides almost like I have a flat tire.

Any ideas?

Thank you in advance

 

the list of the reasons can be quite large.
If you have a warning on the dashboard, take it to a mechanic and have him read the code - no need for guessing from anyone.
I remember I had a suspension related code (don't remember what did it say then) but ride became really harsh and truck became hard to control.
The issue was rotten wire to Rear right airstrut, system had detected loss of continuity to that circuit and pretty much had shut down all the stability enhancements...
It had been a while till I've driven on flats (thank God) so I can't really relate to if that how the ride felt at the time but again, if you have some kind of warning, have your codes read first before pure mechanical issues can be discussed.