Mark Bate

Hi all I wondered if someone could clear up a fact for me please . I purchased a new X4M competition a month ago every time I start the car it say on the driver display , full power coming soon. Its going in for its run in service on Saturday It doesn’t feel like it’s giving full power Will the dealers up date power train software at the time of service so it has full power . Ive been on a lot forums and some people are saying there is no difference in power after the service and other are saying more power Can someone in the know clear this fact up for me please Cheers Mark