Tinker15 said:I live in France from May to October along with a XF with Xenons’ and have never had any problems while driving at night without deflectors. The E89 will be coming out at the end of June for a couple of months and I won’t be fitting deflectors either. Hopefully the weather will have improved by then and I can enjoy the excellent driving roads around here. It has been the coldest May in France for 50 years so if you are coming over soon bring sweaters and a brolly!![]()

bryand said:Tinker15 said:I live in France from May to October along with a XF with Xenons’ and have never had any problems while driving at night without deflectors. The E89 will be coming out at the end of June for a couple of months and I won’t be fitting deflectors either. Hopefully the weather will have improved by then and I can enjoy the excellent driving roads around here. It has been the coldest May in France for 50 years so if you are coming over soon bring sweaters and a brolly!![]()
I'm coming out the first week of June so if you could arrange some suitably sunny weather it would be much appreciated![]()
The advice from main dealer varied so much it was laughable! 
ronk said:688C530E-57B4-4E81-91CF-00C39B23506A.jpegThe advice from main dealer varied so much it was laughable!
That’s why I contacted. BMW customer services and got the definitive answer on an email
Have a look at this set of posts - I would say it covers it all - the final post by kingfisher sums it up nicely when he says his UK car has just had it French MOT and it didn’t need any adjustments from its UK settings.
https://z4-forum.com/forum/viewtopic.php?f=23&t=111280
bryand said:All very helpful people and thanks, I will just leave them as they are and enjoy the road trip![]()