I experienced a restrictive performance warning. This was a "Red triangle flavoured" warning so I booked in to dealer.

By the way, the restriction of performance was a bit unsettling especially as it occurred on the motorway. I pulled over and turned the engine off. It restarted perfectly fine, with no warning lights.

I was pretty surprised not to find anything at all in the owner's manual on this topic - but of course I might have missed it. Anyone else seen any guidance in the book?

Anyway, the dealer diagnosis resulted in a MAF sensor being replaced. 2016 SDV8 AB

thanks for the info  ... - .- -.




Y. O. L. O.
.

Hi I had this problem on my car it was intermittent, it turned out to be the battery was not holding charge as it was getting a bit old.
Replaced battery all problems went away. It did throw up some other faults like transmission fault randomly.
Once battery was replaced it took two to three times driving the car and it was then happy to get rid of the fault messages.
I think the car wanted to self diagnose before it decided that the fault did not exist after battery replacement.