Because it was and remains cost prohibitive for me to fix my bmw at the moment it has been sat for about 5 months now. Are there any common problems with this particular model being left to sit. More importantly went to turn it over about 2 weeks ago and battery dead. Whilst I am of the understanding the battery's rarely go and are hard to locate is there an easy way to jump start the car, preferably with jump leads. I will not manually jump start the car unless they do so easily as it would be problematic if it did not start.