Return of the Phantom Beep

It's back! Although one could honestly say that it never went away. The unsolicited beep.
I have been into the Boxer menu and turned off anything that looked as though it might offend. 
We usually drive with no grey water 25%, or so, fresh water, an empty Thetford BUT some water in the flush reservoir.
The beep often sounds when on bumpy roads. It occurs at random speeds. Swearing at it doesn't seem to help.
It's driving me crazy!

Any ideas for solutions would be most welcome.

Pete

Your step jumping and setting the 'step out' beeper? Or your speed warning that you set via the mode button, it goes up in 5mph steps so is it happening when you hit 65 or 70 or any speed you've set it to?

My guesses would be that either the van thinks a door is not closed, or it thinks you do not have your seat belt done up. As it is a "bumpy road" problem, possibly a bad connection on one of the sensors.

We had a similar issue with a Citroen relay van where the sliding door contacts were dodgy.  Swearing didn't help then either.

Nick.

Check under both front sets in cab. They have a wire to underneath the seat cushion for weight sensing for set belt warnings. If you remove a seat for any reason it has to be disconnected, or, if you've shoved the spare wheel and jack kit under there it could have pulled it out..

If it’s related to the base vehicle then normally a beep would be matched by a flickering or maybe temporary warning light in the cluster - door open, handbrake on, etc. Presumably that’s not happening, so likely to be the Sargent controller making the beep. Although, the origin of short beeps can be very hard to identify. I was convinced my Bosch fridge freezer was telling me it had a sensor problem for a couple of years, but it turned out to be the smart meter in home display next to it in the kitchen that was occasionally beeping to indicate a connection problem.

Thank you everyone.
I will pursue all avenues mentioned above. 
I thought I had dealt with the speed controller but I will look again. The beep does occur at any speed.
It's like having Road-Runner constantly at liberty in the van.

Pete

East of Tanganyika wrote:Thank you everyone.
I will pursue all avenues mentioned above. 
I thought I had dealt with the speed controller but I will look again. The beep does occur at any speed.
It's like having Road-Runner constantly at liberty in the van.

Pete

We had this intermittent beep that we eventually traced to the smoke detector giving one beep in certain driving conditions.  If I remember it was when cornering.

I am going to remove the battery from the smoke detector next time we are on the road. If this is the solution it is genius, DeeGee7.

Thank you,
Pete