About 3/4 weeks ago key fob remote stated playing up ie working intermittently. for the last week or so I've been locking/unlocking by key in door method, All of a sudden it's started working again. Any idea's guys? Could do with some info as it's booked in at the dealers on Friday and I don't want to waste their time and my money.

Change the battery in the fob and make sure terminals are clean
LUIGI