My central locking has decided its had enough!!! This mornin it was fine worked great to open it, when i got to work it locked fine. Then when i went out to get my dinner nothing, wouldnt open??? It now only work if i put the remote right up to the sensor. Ive changed the batterys in the remote and still nothing??? Ive got a mk1 phase 3 clio. Any ideas would be great Thanx???