We had a accident in our first x5 and so we bought a second one with a blown engine and no battery we had the engine and battery swapped out but it will not start. Do we just need to get the battery coded or is that really a must thing? Also does the engine need coded we have heard that also? Please give advise we took to local BMW dealer but they just keep trying to get us to buy a new one and will not look at it. All advice is welcome as this is our only vehicle we are $3,000 plus into it and have been without a vehicle for 3 months. Thanks in advance please please help!!!
