OBC keeps on resetting when I start the car

[BigKriss]

anything I should look at in particular??. I don't think it's a fuse because everything still works. I drive the car sometimes, and the radio, OBC and sunroof switch all switch off for about 30 seconds and start working again.

I will have a look today though

!

[Jr ///M5]

Check the fuseable link Kriss, it's probably cracked and causing intermittant power interuptions.

[BigKriss]

okay if the fusable link is inside a yellow rubber connector then that fine, i checked the other fuses under the rear seat and all of them are fine also. So i'll have to get back to you.

Check the fuseable link Kriss, it's probably cracked and causing intermittant power interuptions.

[525i winter driver]

my obc kept resetting when my battery was dying

[BigKriss]

battery is about 6 months old.

my obc kept resetting when my battery was dying

[shogun]

battery is about 6 months old.

That does not mean 100% it is o.k., better test it under load. Testing a battery with a multimeter is not that good. Must be tested under load.

For example, if you do not have a load tester: switch on interior light and headlights, then start engine, if the interior light goes down a little bit, battery is still o.k, but if interior light goes off completely, battery is dead, maybe a cell. Not very high tech test, but helps in the middle of nowhere.

[Barney Paull-Edwards]

anything I should look at in particular??. I don't think it's a fuse because everything still works. I drive the car sometimes, and the radio, OBC and sunroof switch all switch off for about 30 seconds and start working again.

I will have a look today though

!

Thought there was a baby internal battery to keep data??
The ONLY way to test/check a battery is with a drop tester to assimilate a load,easy and dead certain.

[shogun]

E34 and E32 do not have batteries like the older E28.
But they have the capacitors inside the cluster, total 5 of them, which also get weak over the years. Reset of cluster and behaviour like haunted of the cluster with old caps is 'normal'. Especially in winter time when it is colder.
And Kris has winter now in OZ-land

[BigKriss]

it seems to be okay now. i took the fuse out the fuesable link and put it back - the fuse was okay - and it seems the obc now doesn't reset

[nirvana19]

E34 and E32 do not have batteries like the older E28.
But they have the capacitors inside the cluster, total 5 of them, which also get weak over the years. Reset of cluster and behaviour like haunted of the cluster with old caps is 'normal'. Especially in winter time when it is colder.
And Kris has winter now in OZ-land

That explains it the random trip computer resets which occur occasionally...