R1250RT (K57) residual power consomption

[popi]

Hi !
I've a friend with a 2022 march (K57) R1250RT that has a residual power consomption the reseller techs don't succeed to find the root cause : they decide to replace all the wiring harness ...
Does anyone has found or heared about such issue ? May be a software bug could explain this residual power consomption (it happened in 2006) ?

 

[Omega Man]

Greetings across the pond.
I think you are referring to what we call a “Parasitic Draw” which is running the battery down with the bike off?
There is a number of things that have come up from a bad battery to the NAV connection. If they are willing to replace the wiring harness, hopefully they have already checked those.
The bike is actually a Wethead so one of the moderators will move the post a bit later.
Good luck.
OM

 

[Motobob]

Power Draw

I had a similar problem on my 2018 K1600GT where the battery would discharge in 3 or 4 days to the point it wouldn't start. When I checked is was drawing about 70 to a 100 milli-amps. It took the dealer a while to diagnose the problem but it ended up being a bad module one. There are multiple CPU's on the bikes now which can make electrical issues tough to run down.

Hope that helps.

 

[c10950]

While there are multiple modules or ECU's on the BMW one can still do a parasitic draw test with a decent multi meter that performs a current draw reading .
Simply unplug each ECU or module one at a time till the draw is near zero . 0.002 is a normal draw on most units . Here is a photo of the service manual test procedure for a K54 1250

 

[kbowman]

On my R1200GS it turned out to be the ground module. You can see the thread here.

It took many months and three different dealers to get a resolution. Part of the problem was that the drain seemed to occur only after the bike had been ridden long enough to warm up.

Cheers, Ken