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battery drain

  1. Brand new battery keeps dying

    E39 M5 and E52 Z8 Discussion
    Good people of M5 board, I'm the proud owner of an '01 beast (135k mi) that I keep in an attended/valet parking garage near my apartment (can't stand other people parking the car, but the joys of NYC living). I bought a new battery about 18 months ago, and a few weeks ago the jokers in the...
  2. How can I remove Comfort Access fuse?

    E60 M5 and E61 M5 Touring Discussion
    I have an 2006 M5. I've had the restraint system light come on. When I took it to the dealer they thought that the fault might be in the Comfort Access module draining the battery by activating repeatedly when the car is off. I've also noticed that sometimes the car's clock resets after leaving...
  3. Battery drain if key in ignition, not an FSU issue

    E39 M5 and E52 Z8 Discussion
    I have an issue with battery drain that is different from what most people described in previous posts. If I sit in the car with the key in the ignition, the battery dies in under 10 minutes and I need a boost to start the car. For example, I upgraded my navi to v22 (I have a 2001 face...