Hi i am the proud owner of a e53 4.6is.
I was having probems with the alarm going off which a local auto electrician fixed but came back with the laguage on the dash in Italian. I have also had an after market head unit fitted due to multiple issues with the existing system which to be fair works great but came back with a yellow warning light on the dash one car behind the other no idea what this means as it is not in the book.
Anyone any ideas. I look forward to hearing from you many thanks.