Hello,
my C4's stop-start function stopped working recently. Upon checking with Lexia i noticed that my battery charge is below 75%.
So my question is, what will happen to the car if i take the battery inside to charge overnight? What functions (like radio, trip distances, etc) will reset to their default values? Anything i should be worried about?
What will happen if i leave my car without a battery overnight?
Moderator: RichardW
- Paul-R
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Re: What will happen if i leave my car without a battery overnight?
Can you not charge the battery in the vehicle? That would be better.
You may need a new battery. Our 2015 308 had a battery fitted a couple of weeks ago (under warranty fortunately) as part of an investigation to get the start/stop working properly. That was also reading about 75% IIRC and repeated chargings up did not effect an improvement.
WRT to charging off the car I would wait for a couple of minutes after switching off or opening a door or anything that might wake the BSI up before removing the battery. The radio and trip will survive the experience.
You may need a new battery. Our 2015 308 had a battery fitted a couple of weeks ago (under warranty fortunately) as part of an investigation to get the start/stop working properly. That was also reading about 75% IIRC and repeated chargings up did not effect an improvement.
WRT to charging off the car I would wait for a couple of minutes after switching off or opening a door or anything that might wake the BSI up before removing the battery. The radio and trip will survive the experience.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
- xantia_v6
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Re: What will happen if i leave my car without a battery overnight?
The only thing that should need resetting after replacing the battery is the time and date on the clock.
Ideally, you should follow the BSI reset procedure when disconnecting and reconnecting the battery (obviously doing the charging thing between the instructions for disconnecting and reconnecting).
Ideally, you should follow the BSI reset procedure when disconnecting and reconnecting the battery (obviously doing the charging thing between the instructions for disconnecting and reconnecting).
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Re: What will happen if i leave my car without a battery overnight?
Our 2007 C4 reverts to French on the display when battery reconnected. Needs a delve into the menus to sort out, si vous n'êtes pas content.
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Re: What will happen if i leave my car without a battery overnight?
stop start not working strikes me as a bonus!
- Paul-R
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Re: What will happen if i leave my car without a battery overnight?
Decidedly not!
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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- (Donor 2020)
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Renault 5 D - ( 1992 - 1997 ). - x 4
Re: What will happen if i leave my car without a battery overnight?
Morning
About car battery.
If i change battery i need to introduce code for radio ?
Seller Citroen dealership told me i don't need it. BSI make this for me. But how ? I don't understand !
I found only this information :
" Resetting the BSI computer:
Open the drivers window and the bonnet.
Close all the doors, switch off everything, like the radio, phone charger etc.
Remove the ignition key via the open window
WAIT 10 minutes
Disconnect the battery.
(change the battery at this point if this is required, otherwise WAIT 30 seconds)
Reconnect the battery,
WAIT 1 minute
Keeping the doors closed, lean in via the drivers window
Switch on the 'ignition' (Don't start the engine)
Switch on lights (Dipped, normal driving lights)
WAIT 30 Seconds
Start the car "
or
" There is NO CODE on an original Picasso radio, the car and the radio are matched in the BSI using a computer.
However if the original unit is removed and replaced by another radio, be it a replacement citroen head or a aftermarket head then the BSI will not know the head. So you need the BSI to be told that it has to talk to a new head. This is done through a computer. "
To remember second information ? It is ok ? I don-t need radio-code ?
I will try this weekend to disconnect + cable if somebody tell me it is safe.
Regards
Mike
About car battery.
If i change battery i need to introduce code for radio ?
Seller Citroen dealership told me i don't need it. BSI make this for me. But how ? I don't understand !
I found only this information :
" Resetting the BSI computer:
Open the drivers window and the bonnet.
Close all the doors, switch off everything, like the radio, phone charger etc.
Remove the ignition key via the open window
WAIT 10 minutes
Disconnect the battery.
(change the battery at this point if this is required, otherwise WAIT 30 seconds)
Reconnect the battery,
WAIT 1 minute
Keeping the doors closed, lean in via the drivers window
Switch on the 'ignition' (Don't start the engine)
Switch on lights (Dipped, normal driving lights)
WAIT 30 Seconds
Start the car "
or
" There is NO CODE on an original Picasso radio, the car and the radio are matched in the BSI using a computer.
However if the original unit is removed and replaced by another radio, be it a replacement citroen head or a aftermarket head then the BSI will not know the head. So you need the BSI to be told that it has to talk to a new head. This is done through a computer. "
To remember second information ? It is ok ? I don-t need radio-code ?
I will try this weekend to disconnect + cable if somebody tell me it is safe.
Regards
Mike
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Re: What will happen if i leave my car without a battery overnight?
As I understand it, when the radio is fitted to the car it is 'introduced' by use of the VIN (which is then stored in the radio). Even is power is lost the radio will retain this VIN. When the radio is turned on it communicates with the other electronics, and if the VIN matches the one the radio memory all will work properly. If it does NOT match the radio will start loudly beeping every few seconds.
This means that the radio does not require a code.
This means that the radio does not require a code.
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
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ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
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Re: What will happen if i leave my car without a battery overnight?
The VIN code is entered in the BSI1 as well as in the Audio ECU (coded at the factory)
The 2 VIN codes are compared when the ignition is switched on:
If 2 VIN codes are identical, the Audio system functions normally.
If 2 VIN codes are different, the Audio system functions but permanently emits beeps
Disconnecting the battery will not remove the code as it is stored in flash memory.
The only time a Head unit will need recoding to the vehicle is if it is moved to another vehicle or replaced, or if the BSI is ever replaced.
The 2 VIN codes are compared when the ignition is switched on:
If 2 VIN codes are identical, the Audio system functions normally.
If 2 VIN codes are different, the Audio system functions but permanently emits beeps
Disconnecting the battery will not remove the code as it is stored in flash memory.
The only time a Head unit will need recoding to the vehicle is if it is moved to another vehicle or replaced, or if the BSI is ever replaced.
Please Don't PM Me For Technical Help
Marc
Marc
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- (Donor 2020)
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- My Cars: Citroen C1, Puretech, Flair, 3d, red, 2016 ( 2020 - ).
Citroen C3, Picasso, Exclusive, red, 2014 ( 2018 - ).
Past :
Renault Scenic 1.6D from new ( 2007 - 2017 ).
Renault 5 D - ( 1992 - 1997 ). - x 4
Re: What will happen if i leave my car without a battery overnight?
Thank you both for this helpful information.
" Even is power is lost the radio will retain this VIN "
" Disconnecting the battery will not remove the code as it is stored in flash memory "
Now I need to look forward what I bought
Best Regards
Mike
" Even is power is lost the radio will retain this VIN "
" Disconnecting the battery will not remove the code as it is stored in flash memory "
Now I need to look forward what I bought
Best Regards
Mike
- GiveMeABreak
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C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5721
Re: What will happen if i leave my car without a battery overnight?
Just follow the procedure you already found when disconnecting and reconnecting the battery - very important to avoid electrical problems and allow the car's computer network to properly sleep and wake up. So the not opening of any doors etc. when going through this and the timings are important.
Please Don't PM Me For Technical Help
Marc
Marc