Extreme vampire drain model s p85 -13

[iller]

Hello

My p85 2013 take away up to 5% /24h. Any idea how to diagnos this issue?

Car is parked outside now and its winter here so it can be under 0 C.

 

[brainhouston]

that's normal...

 

[Rocky_H]

that's normal...

Why would that be normal? If you're about to say "Sentry Mode", take note that this is a 2013, before there were any cameras or radar. Vampire drain should be really low on a 2013 car.

The thing I could think of is if the 12V battery is going out, it may have that function updated in the software where it keeps the car on all the time and won't let it go to sleep so the owner has a chance to drive the car in to get the 12V battery changed before the car just turns off and can't turn back on.

 

[brainhouston]

Why would that be normal?

Because my AP1 2016 MX looses about that much in a day...
Plus cold weather was mentioned which will always readjust SOC down
And i believe old 85 packs have pumps running all the time above 70% soc or similar.. (soc wasn't mentioned but just in case)
My car will go into deep sleep after 3 days however n won't drain much (~5% every few days)

 

[ucmndd]

And i believe old 85 packs have pumps running all the time above 70% soc or similar.. (soc wasn't mentioned but just in case)

This.

OP, does this drain continue after your state of charge drops below ~70%?

 

[tdigsi]

Hello

My p85 2013 take away up to 5% /24h. Any idea how to diagnos this issue?

Car is parked outside now and its winter here so it can be under 0 C.

Any 3rd party things connected? Did you use app during this 24h period to wake the car?

 

[iller]

This.

OP, does this drain continue after your state of charge drops below ~70%?

Yes

 

[iller]

Any 3rd party things connected? Did you use app during this 24h period to wake the car?

No 3rd party. Use the app mayby 1 time /24h

 

[ucmndd]

How old is your 12v battery? That’s the next obvious culprit.

 

[tdigsi]

Any 3rd party things connected? Did you use app during this 24h period to wake the car?

Was it draining the whole time you have the car, or just lately when got cold outside? Also instrument cluster setting always connected?

 

[iller]

How old is your 12v battery? That’s the next obvious culprit.

Its old not know how old.

 

[iller]

Was it draining the whole time you have the car, or just lately when got cold outside? Also instrument cluster setting always connected?

I just buy it a few months ago, and yes it has been like this since i repaird isolation fault in ldu. It had a isolation fault When i buy it. When that fault was active battery dident drain a singel %

 

[tdigsi]

I just buy it a few months ago, and yes it has been like this since i repaird isolation fault in ldu. It had a isolation fault When i buy it. When that fault was active battery dident drain a singel %

When you have isolation faults, that prevents from contactors closing, so same as you disconnect 12v and loop, HV would stay as you left. But when car have no alerts, contacors is on, because it supporting 12v and other awake things in the car. Also you could try connect 12v charger and leave connected for 24h to see if 12v battery possibly weak, and if this test gave any impact to the drain. But myself seen least 3% drain on same model +-+-

 

[brainhouston]

Also you could try connect 12v charger and leave connected for 24h to see if 12v battery possibly weak, and if this test gave any impact to the drain.

Just don't do it with 12v still connected to the car..
That might kill some electronics in the car
Not sure if DC-DC has protection for that... (i would hope so)

 

[tdigsi]

Just don't do it with 12v still connected to the car..
That might kill some electronics in the car
Not sure if DC-DC has protection for that... (i would hope so)

When you jump start , it also kills electronics? Or use power supply/charger, depends what you have, never had any accidents with this, but like always, user responsible for consequences