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Battery charging red warning light came on
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Battery charging red warning light came on
Hi, first post. Greetings to you all. Z4 2003, 2.5 192Hp
Bad news (for me). Started the car yesterday. As always perfect start up, but the red warning light for battery charging stayed on...
The battery has worked flawlessly for 9 years. Not a single problem. Should I assume is an alternator issue? Any hint will be much appreciated.
Thanks and happy new year to you all.
Charly
Bad news (for me). Started the car yesterday. As always perfect start up, but the red warning light for battery charging stayed on...
The battery has worked flawlessly for 9 years. Not a single problem. Should I assume is an alternator issue? Any hint will be much appreciated.
Thanks and happy new year to you all.
Charly
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- Lifer
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Re: Battery charging red warning light came on
i and welcome-9 year old battery -i dont think you can ask much more of it
Gone but not forgotten.
New ride silver e93.
- cj10jeeper
- Lifer
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Re: Battery charging red warning light came on
Welcome. Simply change the battery. 4 to 6 years is a real good life, so 9 is way past expectation.
Where in Spain are you from?
Where in Spain are you from?
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Re: Battery charging red warning light came on
Welcome to the Forum - as above
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Re: Battery charging red warning light came on
Charly2012, welcome to the forum....
Nine year on the OEM battery....
Nine year on the OEM battery....
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Re: Battery charging red warning light came on
Thanks for the replies and the welcoming...
I'm from ex-sunny Madrid (a whole foggy week, feels like London )
Is there any way to confirm it's a battery issue? Any precaution I should be warned of before going through the process of changing it?
Thanks a lot,
Charly
I'm from ex-sunny Madrid (a whole foggy week, feels like London )
Is there any way to confirm it's a battery issue? Any precaution I should be warned of before going through the process of changing it?
Thanks a lot,
Charly
- cj10jeeper
- Lifer
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Re: Battery charging red warning light came on
You can stick a voltmeter across the terminals without the engine running. Look for around 12.4v
Less than 12 and it's dead.
Don't waste any time in that age battery.
Less than 12 and it's dead.
Don't waste any time in that age battery.
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
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Re: Battery charging red warning light came on
Bit odd that the car tuned over and started well but shows a charging fault light if it's a worn battery? although 9 years is as much as you can expect from a battery.
A charging fault light usually indicates low charge which can be caused by a slipping or broken belt, or worn alternator brushes, or poor earth or cable connections to the battery or alternator. or it indicates overcharging caused by the control pack.
As CJ says try a Voltmeter on the terminals without the engine running looking for about 12.4 ish Volts. and with the engine running to test the alternator where a healthy alternator should be giving around 13.7v at idle and not much over about 14.5v preferably.
Good luck
A charging fault light usually indicates low charge which can be caused by a slipping or broken belt, or worn alternator brushes, or poor earth or cable connections to the battery or alternator. or it indicates overcharging caused by the control pack.
As CJ says try a Voltmeter on the terminals without the engine running looking for about 12.4 ish Volts. and with the engine running to test the alternator where a healthy alternator should be giving around 13.7v at idle and not much over about 14.5v preferably.
Good luck
2003 2.5 SE, low miles, Sterling Grey, 108's & Eagles, no stubby here! Unmolested.
2018 Cooper S Countryman
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2018 Cooper S Countryman
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Re: Battery charging red warning light came on
UPDATE:
Thank you all,
I've just chequed visually the battery. It has the green light so apparently it is fine at this moment. Then I have started the engine. Smooth as always and, to my surprise, no red warning light in the display . I have driven for a few miles and everything seems to be fine...for how long, who knows?
I'll do as you say and check voltages. Since I have to fix a few minor scratches next week I'll ask at the garage for more hints.
Thanks again,
Charly
Thank you all,
I've just chequed visually the battery. It has the green light so apparently it is fine at this moment. Then I have started the engine. Smooth as always and, to my surprise, no red warning light in the display . I have driven for a few miles and everything seems to be fine...for how long, who knows?
I'll do as you say and check voltages. Since I have to fix a few minor scratches next week I'll ask at the garage for more hints.
Thanks again,
Charly
- cj10jeeper
- Lifer
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Re: Battery charging red warning light came on
Charly - get it fixed soon. Those are classic symptoms of a dead battery despite green light being on. It WILL let you down at the most inconvenient moment...probably a cold damp morning when the battery is given that extra bit of strain.
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
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Re: Battery charging red warning light came on
Agree - leave it and IT WILL LET YOU DOWNcj10jeeper wrote:Charly - get it fixed soon. Those are classic symptoms of a dead battery despite green light being on. It WILL let you down at the most inconvenient moment...probably a cold damp morning when the battery is given that extra bit of strain.
///M tri colour steering wheel, mud flaps and loads of other extras! ZHP illuminated gear lever..... Pre Purchase Checks,Getting the Best out of Dealers http://www.bmwz4roadster.net
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Re: Battery charging red warning light came on
Any battery you recommend? Besides the BMW original...
Thanks again,
Charly
Thanks again,
Charly
- cj10jeeper
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Re: Battery charging red warning light came on
Same AH as oem and any big label, but just find one with a 4 year warranty such as from Halfords.
Search online too for good prices, although BMW can be competitive at times, but only 1 year warranty.
Search online too for good prices, although BMW can be competitive at times, but only 1 year warranty.
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
- markeg
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Re: Battery charging red warning light came on
I use a Bosch S6, Alpina has a high Ah rating, but S5 might be OK for you? Got mine from EuroCarParts....
Tapatalking...
Tapatalking...
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current: MB C-class
"veni, vidi, velcro - I came, I saw, I stuck around..."
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Battery charging red warning light came on
I have the same problem. The battery shows 11.5 volts and starts the car fine. The charging voltage is 14.5 yet the battery warning light comes on sometimes. It stays off for a while then l start the car and it stays on after driving and then starting the car it stays off. Is it the battery