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I have a bmw 735i 1990. the baterry is dead apparently from a short and sitting for a month and the doors are locked i tried to jiggle the keep as i lifted the handle(worked in the past) but it won'y open so i can recharge the battery. How can I open the door?

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I would think that on a 1990, the door should open with the key and no power unless the lock or the key is worn out. Have you tried both sides of the car?
Not familiar with this car, but if you have a jack and jackstands and jumper cables, can you access the starter motor from beneath the car? If so, clip a jumper cable on the big lug on the starter motor to power the car to get it open.

Posted on Mar 14, 2011

  • grimm3848 Mar 14, 2011

    Thanks I will try both options I haven't tried to jump the battery from below but I know where the lug is and will try that option- it should provide enought power to acctivate the lock



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