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Re: 2004 911 battery is not responding. Where is it...
Its under the hood.....in the front. if you can get it open its there, if not there are jumper poles in the rear engine bay.
Also a metal bar you can jump in the fuse box to give you enough electric to open the front hood....
If all else fails goto local porsche dealer and get them to explain how to operate the emergency cable release in either the driver or passenger side front wheel well. they get this all the time they wont be shocked...
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I don't know much about these but on my daughters 1.0i polo I had to reset the throttle with a computer after disconnecting the battery for a while. If you are sure you have a spark and fuel getting to the plugs then the fault will lie with timing and fuel mixture.
A simple jump start with battery cables should get the car started and recharge the battery. If you don't like dealing with battery cables, there are products that attach from inside the car using the cigarette lighter to jump start the car that work very well.
Buy yourself a volt meter and check the batter voltage before and after it starts. You should read 12 volts before starting and around 14 volts once it starts and the alternator is charging the battery. Also check for loose connections between the alternator and battery. Check that the ground wire from the battery is secured to the vehicles frame. Good luck!
I don't know beans about automatice transmissions and the average person can only check the fluid levels and take it to a transmission shop if it is more serious. As far as the engine goes, you need to localize the problem because with the other indications it might not be the normal stuff. So, what I would recommend is that you take the serpentine belt off and try to turn the crank with a large wrench (CW only) with the car in neutral. If you can turn it, then it is probably not your engine freezing up. If it won't turn then the transmission is probably not disengaging from the flywheel - maybe the torque converter.
If it does turn over, then you can put the belt back on and try to jump start the car with another vehicle or the boost function on a battery charger. It it starts then you know to look at the charging system - battery, alternator. If it doesn't start then the starter or the starter reley.
If it does turn over and electrical works, then the problem is unlikely the battery. You can try jump starting. If it cranks when jump-starting it may be a weak battery, starter motor or alternator, but I don't think that this is the problem.
Check if there is spark on all cylinders. Do a code scanning (this car is OBD1, you will need to do the scan at the dealer place or to find a BMW OBD1 tool- Universal OBD2 scanner will not work on a 1994 BMW). If the codes return misfire or mixture related errors check fuel pressure, check sensors and parts that determine the mixture (MAF/MAP, AIT, O2 sensors, IAC and EGR system), check the vacuum system for leaks and check the crank sensor.
sounds like it may be a bad alternator. jump start the car and if it gets going disconnect the negative battery cable and if it dies you have a bad alternator. It may die as soon as you unplug the jump start cables.
I believe that there is only one catalytic converter.
Don't be in a hurry to replace the catalyst. On an OBD II system, the computer will often throw a code for low catalyst efficiency when the oxygen sensors get old and slow to respond.
How old are your oxygen sensors? If they have over 100k miles on them, I would start there. Don't believe someone who throws a digital voltmeter on the oxygen sensor and pronounces it to be 'good'. A voltmeter will tell you if the oxygen sensor is dead, but it won't tell you if it is slow-responding, which often happens on 100k+ mile sensors.