Jumpstart Terminal

jthansen7 · #1 01-07-2009, 06:04 PM

I've attempted to jump start my X5 twice. Last year when my battery died and this morning when the battery was accidentally discharged. Both times I've tried to use the jumpstart (+) terminal and ground connection under the hood. And both times I could neither jumpstart or even charge the battery via this terminal and ended up jump starting by direct battery connections. I called my local bmw dealership and there is no know defect bulletin for this problem. Has anyone else encountered this?

Thanks,
John

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SLX5 · #2 01-07-2009, 06:29 PM

I just jump started my car the othe rday because of a bad battery. i connected to the (+) terminal and grounded to one of the strut bolts. I connected the other to the my MDX and had it running. Your car needs a lot of juice to start, teh only thing that I can think of it what ever you hooked to didn't have enough juice. My two cents....
SLX5

primetime · #3 01-07-2009, 06:30 PM

Nope never.. You should've tried a different ground for the negative cable. If not, then there is something wrong with the positive terminal.

JCL · #4 01-07-2009, 07:51 PM

Most likely a bad connection at the cable clamps at either the dead vehicle or the good battery, combined with cables that are too light a gauge.

jst2878 · #5 03-19-2009, 02:58 PM

get a portable jumper box. never jumpstart an obd2 ecu...you can fry your car or truck

X5 Meister · #6 04-14-2009, 09:09 PM

- I've experienced that same situation on older BMW's and apparently it was due to a severely drained battery. Haven't done it on an X5 yet (fingers crossed)

- I've found that portable jumper boxes sometimes just don't have the juice to do the job.

- No issue with jumping an OBD2 car, just follow the manufacturer's instructions and you'll be fine. (ie. Before disconnecting the jumper cables from your BMW, turn on the rear window defroster and set the blower to the highest speed; allow the engine to run approx. 10 seconds. This will prevent a voltage surge from the voltage regulator to the electrical accessories)

m5james · #7 06-09-2009, 04:10 PM

I just had to throw my truck on the charger due to the battery dying from the stereo being on too long. Now the ABS, Brake and DSC lights are on

I've tried shutting it off and restarting, but they're still there...wtf?!

mrbmwx5 · #8 06-09-2009, 04:19 PM

Quote:

Originally Posted by m5james

I just had to throw my truck on the charger due to the battery dying from the stereo being on too long. Now the ABS, Brake and DSC lights are on

I've tried shutting it off and restarting, but they're still there...wtf?!

Start the car and turn the steering wheel all the way left and all the way right that will reset it.If not it will reset itself when you drive off the lot.
Hope that help.

m5james · #9 06-09-2009, 04:24 PM

You're the man!! All the way to the left, nothing, 3/4 to the right and the lights shut off. I was about to shyt myself as I was trying to think of what could have blown to cause that to happen. That turning the wheel thing is so weird! Anyways, thanks.

mrbmwx5 · #10 06-09-2009, 04:28 PM

Quote:

Originally Posted by m5james

You're the man!! All the way to the left, nothing, 3/4 to the right and the lights shut off. I was about to shyt myself as I was trying to think of what could have blown to cause that to happen. That turning the wheel thing is so weird! Anyways, thanks.

You welcome... Glad i can help.

Happy motoring.

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