1,6,7,8 - Series and Mini CooperGeneral Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.
I just recently had an aftermarket alarm installed on my e38 1995 740i. The door was left cracked after the alarm was installed and it killed the battery overnight. The next day the car was jumpstarted and left to run for about 30 mins to recharge the battery. The car starts fine, but the trunk wont open and the sunroof button doesnt work correctly. I have had a problem with the sunroof before that was fixxed by just resetting the positive battery terminal a few times and it worked again.
I am guessing it has something to do with the computer in the car?
Everything was working fine prior to the battery dieing.
Unfortunately, this might end up being a big problem. Jump-starting cars is hazardous in that it can do some damage to fragile wiring. Relays etc are vulnerable. I'm afraid that your trunk release relay might be toast. I'll pass this trough a few people and see if they can think of a way to get the trunk open...
I looked into your issue some more and didn't find anything about the trunk actuator, but your sunroof is another story. I've attached a TIS article about customers who have had problems with their sunroof after a dead battery. Print this out and take it with you to the deal to see if this is the issue.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.