Question about 2001 BMW 5 Series

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2000/ bmw 523i. The car is shorting on the electrical system. it has destroy ed 2 quality batteries in one the circuit. when all is off there is a drain on the battery.The BMW dealer is very new, I am in Kenya and I need help.

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Check out if any headlight bulb or ac or ac fan remaining On even after you turn the car OFF.if its remaining ON then that must be draining the car battery.But if nothing is remaining On after you turn the car OFF then check the Ignition switch and its connections.Also check for 12 volt at the ignition switch connections.In many cases the ignition switch of the car goes bad.the ignition switch is part of the car where you insert the car key to start the car.if the switch is internally faulty then it will not turn the car OFF ,even when you turn it OFF.Also check the connection between battery to starter and connection between battery to alternator.If any of the connection is loose or not connected properly the battery will get drained.If the battery is too old then it can be actual fault of the battery.In many cases when battery gets old,it stops holding its charge and gets drained in few hours of charged. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Aug 30, 2010

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1 Answer

I have a 2001 BMW 740il. Error code per Autozone is P0343. Can you tell what that is and how to fix it. Thanks IM


P0343 - Camshaft Position Sensor 'A' Circuit High InputI'm surprised Autozone didn't give you a printout of the possible causes or tell you what they were. These are possible causes but it could also be the wiring in the system too.


- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
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Check engine light came on


What do you mean "can't find code"? If the check engine light is on, there is a fault code stored in your onboard computer - that's the way it works. If you are using a generic OBD code reader, that is most likely the reason you cannot find any codes. You need to use a scanner that has the correct software to access your ENTIRE computer network, not just the "continuous memory" or "generic" side of your computer system.

The window problem is a seperate problem and must be diagnosed accordingly.

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I got a bmw 1998 523i, and cannot turn the headlamp mai n beam off, without disconnecting the electric's to lamps


problem could be the rain and driving light sensor faulty or problem could be in the light switching center control unit.the dealership has to fix.most everything on bmw computer control.

Apr 14, 2011 | 1998 BMW 5 Series

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Where is the Crank Sensor '99 BMW 523i E39 Auto


are you sure you need the crankshaft position sensor changed. it is at the back of the engine i believe, but.....
check for a wet ecu first... read the note on e36...

the ecu compartment is under the windshield on the passenger side on E36

you gain acess to it under the hood....
this compartment gets wet, the ecu lays on a flat surface in that
compartment.

the bottom side of the circuit board gets wet and starts corrosion.

remove the ecu, take the bottom plate off, clean the bottom of the circuit
board with alcohol and a soft tooth brush.

you should be able to see the signs of corrosion or conductive build up.

this gunk bridges solder points doing all sort s of wierd things to your
car, including false sensor readings from asc/abs controllers and other
sensors....

all the way to engine failure and worst case burnt and shorted wiring
harness.

I'm on my 3rd ecu, took me and the repair boys a few years to figure this
one out.

BTW: i would get that ecu mounted above that flat surface, use some sort
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Dec 28, 2009 | 1999 BMW 5 Series

2 Answers

Were is battery on a bmw 523i


To be completely honest, I know so few about the 2005 BMW's, but the battery location should be simple.

Typically they are located under the hood, usually by one one ofthe hood hinges. However, BMW has been know to put some of them in thetrunk (E46 325i). I have also seen some of them below the rear seat as well (Serie 3). Thebattery may have a cover over it, so it may be a little harder to see.

From my BMW catalog it shows it should be in the trunk, on the passenger's side. See this site: BMW Select

Hope helped with this (remember rated this help) Good luck.

Nov 02, 2009 | 2006 BMW 5 Series

4 Answers

Battery keeps going flat


Hi Ritchie,

Bring the vehicle to an auto parts or battery store. Ask if they could perform a 'Load Test' on the battery.

This test simulates the load of turning an engine and its ability to hold a charge. It takes seconds. The results are Pass or Fail.

Fail means its your battery.

Pass means we keep looking.

Comment back with the results.

Hope you find this to be very helpful

Mike

Oct 10, 2009 | 1998 BMW 5 Series

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