Massive Electrical System Failure: Is my car Hunted?

[JonK]

The followings started in chronological order during last several days.
(05 4.4 52Kmi)

1. All the ashtray electrical output died. No 12v outputs.
2. False-positive Airbag and Front Seat-Belt Warning Signs accompanied by alarms that won't disappear.
3. Seat-warmers dead.
4. Final Draws: Headlights blinks erratically during driving, inside lights turns on and off as well that persisted no matter.

I had #1, #2 problem two years ago. They explanations were, for #1 blown fuses, for #2 discharged battery. After recharging the problem disappeared.

I assumed that soon battery replacement is required so I searched the forum for few hours for replacement battery.

Since I had my car re-certified a month ago I took them in yesterday. They called me in the afternoon they are narrowing down to locate plausible cause for the problem. Obviously no battery issue.

Any expert opninions?

[X5rolls]

I hate electrical issues. I'm no expert but have suffered through some in other vehicles. First thing to do is to check all grounds.

[primetime]

Ignition switch.... it can cause all the electrical gremlins you describe..Have the dealer replace it. Its cheap and quick.

[mrbmwx5]

Voltage regulators are dead.

[X5rolls]

Originally Posted by mrbmwx5

Voltage regulators are dead.

Isn't the voltage regulator part of the alternator?

[JonK]

Thanks for the suggestions. I will keep you posted what dealer tells me.
I took a multi-meter measurements on battery it showed 12.54v and 13.95v with ignition off and on. I guess my battery is good.

[mrbmwx5]

Originally Posted by X5rolls

Isn't the voltage regulator part of the alternator?

yup.. mine lights inside/outside was flickering like the X-MAX lights turn out was the voltage regulator.

[MSUSaul]

my window on the passenger side rolls down by itself. the germans are not good electricians. the americans are much better

[primetime]

Do a search on the ignition switch on this forum. I'm telling you it is eerily similar to what your experiencing and how it is still a mystery after trying a few things.

[butundo]

Originally Posted by MSUSaul

my window on the passenger side rolls down by itself. the germans are not good electricians. the americans are much better

I had that problem. The switch on the door had a bad connection.