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BMW 3-Series (E90 E92) Forum
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Increased Battery Discharge - FRM or IBS?
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09-03-2022, 06:42 AM | #1 |
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Increased Battery Discharge - FRM or IBS?
Hello people,
Bit of a long story, really hope someone can help, will try and bullet point it so it doesn't get confusing. Keep getting increased battery discharge message, every time I leave the car for a day or two (ever since I bought the car a year ago) This message has been there with the original BMW battery and even after replacement with a new battery that was correctly coded Had Halfords to a test on the new battery and they said it was good As an aside I had a faulty FRM2 module which I had repaired locally. After that point my lights started working but it has left some kind of error message in the memory I read somewhere a faulty FRM can drain the battery. A dodgy IBS can also present this low battery warning. I've had quotes for diagnostics for finding a parasitic draw and as expected the numbers are huge. Questions: 1. Has anyone had any experience of a bad FRM draining the battery. 2. If so, what should I do next? Assuming the guy has a done a dodgy repair on it should I be buying a brand new unit? And even if I did, how would the software be transferred as I am assuming the software on my existing FRM2 would now have been tampered with. 3. What are people's thoughts on the IBS? I should point out the battery problem has always been present even before I had the FRM 'repaired' Any help much appreciated. |
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