Hello,
Does anyone know at what battery voltage the start-stop function stop working because the battery is considered too low?
For some reason i think it was 12,5V but i am not certain.
Or is it related to the battery charge percentage? I do recall the threshold being 75% cahrge, but surely there has to be an equivalent voltage for 75%?
e-HDi eco mode battery voltage
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Re: e-HDi eco mode battery voltage
I think it's a little more involved than that to be honest. For example, when operational, the system will automatically restart the engine in the following conditions:
If you have a fault or warning light there will be a fault code you can read with Lexia - that will help us with diagnosis.
- Inadequate vacuum reserve
- Vehicle speed above 8 km/h for a vehicle fitted with a piloted manual gearbox
- Vehicle speed above 25 km/h for a vehicle fitted with a manual gearbox
- Lowering of the temperature of the Lambda sensors
- Thermal protection of the alternator
- Thermal protection of the battery
- Thermal protection of the voltage retaining device ECU
- Battery charge status below 73%
- Battery charge status becomes non-nominal
- Battery voltage below 11,8 V for 1 seconds
- Power accumulator voltage below 4,7 V
- Engine requirement (*)
- Power steering system downgrade mode
- Traction chain closed
- Power accumulator charge status inadequate
- Low battery charge status
If you have a fault or warning light there will be a fault code you can read with Lexia - that will help us with diagnosis.
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Marc
Marc
Re: e-HDi eco mode battery voltage
Nah, its fine, it just wont stop the engine. because the battery is pretty old. I drive most of the time in the city, but it used to be that after driving out of town somewhere the start-stop would start to engage again for a day or two. But now this is not the case anymore, even after a long journey. So i am just wondering if it is time to change the battery. The car starts fine and there are no other signs of a weak battery, but i will see what happens when winter comes and i'll have to start it in the morning.
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- Posts: 37014
- Joined: 15 Sep 2015, 19:38
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- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
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 5648
Re: e-HDi eco mode battery voltage
Ok, these are the conditions that have to be met for the engine to stop when using the system - there are USER conditions and SYSTEM conditions:
User conditions allowing the engine to be stopped: | System conditions allowing the engine to be stopped: |
|
|
Please Don't PM Me For Technical Help
Marc
Marc