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2004 BMW 745 Repair Question


Topics covered: Door, Battery, Cd changer.
Mileage: 115,000 miles.

Asked on November 29, 2011

My cars ac comes on when turned off, interior light comes on when riding down the street, cd changer clicking when not in use, when I come to a stop car tells me to adjust gear shift, battery keeps going dead and alarm sounds off for no reason.

Same as ab ove
Avatar Asked by mamacita

Answer

Replied on November 29, 2011

Check the AC switch. It sounds like there is an intermittent short in it.
"Interior light riding down the street" doesn't tell me much, but I'm going to guess that you meant to say the light comes on while driving down the street. One of the door switches is shorting to ground intermittently. Access the back side of the switches by removing the plastic panel covers. Remove the wire from one switch at a time, cover it with tape, and test drive the car.
The CD changer sounds like it has a stuck switch or power relay.

Tiny Answered by rivermikerat (expert)
5,494 answers provided
Replied on November 29, 2011

so what keeps draining my battery and u didnt respond to part about message received onl when braking or coming to a stop to put car in drive or reverse again as if its not reading it correctly. all these things started happening at the same time. its my electrical system in this car about to go hay wire?

Tiny Response from mamacita
1 question asked
Replied on November 29, 2011

My guess is the shorted door switch is draining your battery.

"onl when braking or coming to a stop........" This is incomplete. What does what only when braking or coming to a stop? The AC turning on without being switched on? The interior lights coming on with the doors closed? Or the CD changer clicking?

COMPLETE sentences and questions allow us to understand what you're trying to ask us and formulate a proper answer. Incomplete sentences and questions don't allow us to do anything.

I still stand by the answers I gave to the questions I understood.

Tiny Answered by rivermikerat (expert)
5,494 answers provided

Replied on November 29, 2011

ill ask one at a time. when i come to a stop i get a message to put the car in drive or reverse again as if i have not already so. this only happens when i stop the car after driving forwarrd or backwards.

Tiny Response from mamacita
1 question asked
Replied on November 29, 2011

Have the computer scanned for codes. The transmission control module is receiving erratic signals.

Tiny Answered by rivermikerat (expert)
5,494 answers provided