2003 BMW M3 Electrical system Problems

“2004 Bmw M3 convertible. I was on my way home and decided to put the top down. I have owned the vehicle for approx. 6 months and have performed this operation a countless number of times (I live in southern california). I was driving around 40 MPH when I looked in the rear view and noticed that the stowage lid was completely up. I pulled over and performed the operation, but it would not close. I immediately called sos and they were not able to assist me. …”

“Windows were closed. There had been a light rain. Temperature was about 90 degrees f. Doors were unlocked. Upon shutting the ignition key off in a parking lot, both doors locked automatically and immediately. Lock button on console was not pushed. Both doors would not open, by use of the buttons on the keys or by the console button. Two different keys were tried. The door handles moved, but would not open the doors. I don't believe the outside door handles would have opened the doors either because the doors were locked . …”

“The contact owns a 2003 Bmw M3. The contact stated that the electrical system shorted out and all the electrical devices failed to work. The vehicle decelerated without warning and the engine went into limp mode and lost power. All the warning indicators illuminated on the instrument panel. The vehicle was towed to an independent mechanic who diagnosed that a new battery was needed and a part on the fuse box needed to be replaced. The manufacturer and dealer were not made aware of the failure. The failure mileage was 98,000. The VIN was unknown.”

“Bmw M3 e46 (2001-2005) do not respond to any standard obdii commands from various tool manufacturers. These vehicles do not seem to be obdii compliant.”