640d battery drain when stationary message?

[chillo]

Hi,
When I don't use my 640 for a couple of days (usually over a weekend) I get a message when I come back to it:

I have check the battery is charged with a ctek charger, all ok. It starts ok etc. anyone had this? Assume some component has a fault but nothing had shown up at the main stealer diagnostic check?
Help!

[chillo]

8Tech said:

This shows that the battery charge is low and therefore the car has started shutting down systems to conserve power.

You probably need a new battery which will then need coding to the car.

This is also very common on cars used for slow or short journeys where the alternator does not charge the battery.

Your "driver profile" is probably wrong!!!

Thanks!
The car is my daily stter used for a daily round trip commute of a 180miles (95% motorway) so pretty sure it's not a slow/short journey issue
When the stealer checked the battery they said it showed 40% charge so could be battery?

Edited by chillo on Tuesday 3rd March 11:23

[chillo]

I had my battery replaced under warranty in attempt to cure this, I still get the same message if the car is not used for 2 days or more!

[chillo]

gizlaroc said:

Did you ask them if they coded it properly?

I was told it needed to be coded when new battery fitted (main dealer: Stratstone) so I assumed they had!
It's going back in for a replacement rear camera unit so will get them to check again

[chillo]

Just to update this thread, fault traced to a faulty tracker unit! now fixed