[jeho]

Read a few threads about the IBS (BMW Intelligent Battery Sensor) and how it does wonky stuff for our vehicles.

Just hoping someone can chime in with expertise/opinion on what they think I should try first before spending a bunch of $ of things that may not be the culprit.

Issue: Car sometimes does not start on the 1st when pressing the START button but fires up immediately/strongly on 2nd or 3rd attempt.
- I hear the initial Click sound
- all my power lights and accessories work fine
- no CEL and no all dashboard light error
**Also, I have AirLift AirBags/Compressor and my 30A fuse keeps popping randomly (this Fuse is connected directly to the battery, thinking this may be the IBS pulling abnormal electric surges?)


Things i've Checked/Confirmed:
- Car Off = 12.7-8v & Battery @ 1 year old (battery seems to be holding charge)
- Car Started/Driving = 13.9-14.4V (Alternator seems to be doing fine? Voltage seems right)
- absolutely no hesitation in car starting when it starts
- drives perfectly fine no RPM dips
- reattached all my battery cables / checked for corrosion/wire issues

Does this sound like an
1. IBS sensor issue
2. starter motor but i doubt it since it starts up strong/fine?
3. clutch switch sensor

Thanks in advance for ur opinion on which steps would you try first.