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2nd September 2020, 22:33 | #11 | |
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ROVER 75 Connoisseur Join Date: Jul 2020
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Quote:
How does this intelligent charging system differ from a standard system Jamie? I always thought that overcharging a battery was not good for it's health, of course things have come along in leaps and bounds since the Lucas 15 ACR, but I'm confused as to how increasing the voltage can help???? Surely if you increase the voltage, the current flow also increases, which could potentially boil the electrolyte and overheat the plates in the battery?? or is this too simplistic a view. |
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3rd September 2020, 08:53 | #12 | |
Posted a thing or two
Alpina D3 Join Date: Sep 2014
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Quote:
Or it might be that it simply doesn't charge the battery if it thinks it is full, reducing the load on the alternator. I'm not entirely sure how it all works, I just know that if you fit a new battery you have to tell the car it is new, and it you change the size / type you have to change the VO to reflect this. The IBS does have one nice feature, when the voltage gets a bit low it turns off all the extra electrical items that aren't needed to try and keep enough power in the battery to start the car. |
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3rd September 2020, 09:23 | #13 |
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75 Conn CDT Tourer, 75 Conn SE V6, 75 Conn V6, 75 Conn CDTi Tourer, ZS 180 Join Date: Jan 2014
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Could this be what's happened to the OP's BMW ?
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3rd September 2020, 10:47 | #14 |
Posted a thing or two
Alpina D3 Join Date: Sep 2014
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3rd September 2020, 22:01 | #16 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
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It might be marketed under the BMW banner but I'm sure it wasn't developed by them. It's a sort of gimmicky idea like companies making additives to add to your engine oil or water jacket crack sealing compounds. Quite often useless and in some cases damaging.---- |
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4th September 2020, 06:00 | #17 | |
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VW Golf TDI yawn Join Date: Jul 2019
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Though a little tip, if you have access to a ramp or have a good mechanic, get them to unplug the transfer box connector and see if the fault goes away, if it does then the transfer box is screwed. That is an official BMW test procedure that technical used to tell us to do. Last edited by Steven211; 4th September 2020 at 06:04.. |
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4th September 2020, 08:39 | #18 | |
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4th September 2020, 09:17 | #19 |
I really should get out more.......
MGTF, MGZT, Range Rover Join Date: Sep 2013
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Just 2 minor points really.
Using cars all the time is vital. I’ve used our 3 cars in rotation since March so they all get a run. No issues with the BMW, Peugeot or MGTF. If you do the simple job of fitting a new battery, don’t do what I did and shut the boot when the battery is disconnected. The battery lives in the boot! I’m delighted to say I found a method to get into the boot without breaking into the car which is what Cotswold BMW told me to do. I was amazed they did not know how to get into a BMW. The boot key lock was deleted the year before mine was built hence the problem. Just say if you need the method.
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4th September 2020, 09:38 | #20 |
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Well it will bring up a warning light so no I wouldn't leave it disconnected but at least you would know the fault. It will just need replacing And programming then. Is it E series x3 or F series?
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