✅ Fixed
BMW intelligent battery sensor (IBS) communicating fault — not registering full battery charge. Also found: glove box light staying on. Both fixed. Battery replaced with BMW-spec AGM battery $180.
BMW 328i 2015 battery draining overnight
BMW
3 Series
2015
On This Page:
🔍 Symptoms
⚙️ Causes
🔧 All Repairs
⚠️ Avoid These
🧾 Driver Reports
🔗 Similar Faults
📖 Repair Guides
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
BMW dead in morning. Battery 3 years old. Multiple electrical features. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.
🔍 Symptoms
📍 BMW 328i
⚙️ Possible Causes
BMW 328i
Possible: BMW intelligent battery sensor (IBS) communicating fault — not registering full battery charge. Also found: glove box light staying on. Both fixed. Battery replaced with BMW-spec AGM battery $180.
Repair / Solution
Based on 65 driver confirmations
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BMW 3 Series 2015 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🧾 Driver Reports
🚗 More About This Vehicle
Explore more BMW models
📖 Related Repair Guides
Help other owners by sharing your experience.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.