I have recently purchased an E61 530d M Sport and have got an issue with the rear windscreen wiper.
When i push back on the stalk it will wipe but after five or six times of wiping it will stop working for a while then come back to life. Also even with the stalk back it will not stay on at all which means i have to pull the stalk forward then back again to wipe. When the wiper stope working so does the window cleaner/sprayer.
The only thing i have tried is to open the glass on the boot and clean the contact points but am stuck as to where to go next.
May i point out this is my first beamer for many years but other than this slight issue I am over the moon with it!
Any help will be gratefully received.