Ive just had my RRS back from the dealer following some repairs to the crank shaft sensor or something!! but whilst it was with them it has also clocked up 190miles somehow!!! and the sat nav has also had its history cleared which i find highly suspicious. The work entailed them disconnecting the batrery - does anyone know whether battery disconnection would also result in clearing the history as I am sure that will be their excuse when I speak to them and i would like to knowfor sure so I dont get fobbed off? many thanks

I don't think a disconnected battery will clear your previous destinations, but i'm pretty sure it won't have clocked up 190 miles Someone has some explaining to do. Another reason why i have an incar camera.

I had a 'hard reset' with a battery disconnect on my RRS when I had it and the Sat Nav memory remained. Sounds like an intentional wipe . As Ady says, someone has some explaining to do  ON THE WAY: BMW F21 M140i
MERCEDES GL350 - Metallic Navy Blue w/Grey interior

GOING: BMW F31 335D MSport+ xDrive Touring
GONE: Land Rover Discovery 4 HSE - Stornaway Grey w/Black Interior (wish we'd kept it )
GONE: BMW F10 520D MSport - Carbon Black
GONE:MY12 RRS SDV6 HSE Sumatra/Ivory/Grand Black Privacy glass

thanks gents - I didnt think it would but wanted to be sure, i suppose he next obvious question is what do you need to do to clear the previous history so i can understand what the enginner must have done to wipe his own history. I am meeting with the dealers MD next week and going to give him both barrels as you can imagine. So far they have sent me a summary of events which claims they did seven road tests in the space of one week !!!!!

It should be in the handbook , but think from memory there is a button to erase recent destinations.  ON THE WAY: BMW F21 M140i
MERCEDES GL350 - Metallic Navy Blue w/Grey interior

GOING: BMW F31 335D MSport+ xDrive Touring
GONE: Land Rover Discovery 4 HSE - Stornaway Grey w/Black Interior (wish we'd kept it )
GONE: BMW F10 520D MSport - Carbon Black
GONE:MY12 RRS SDV6 HSE Sumatra/Ivory/Grand Black Privacy glass