Hi my 2005 1 series 1.6 petrol bmw has a problem with the airbag ecu
I'll start at the beginning and try to keep it brief.
I have a work van now and the car wasn't getting much drive time , could have been sitting up for a week at a time,
One day the battery was fully dead so I jumped it and it was fine, until the next day when it had to be jumped again.
A friend connected the opposite cables and we got some smoke but on further inspection he had burned half way through the positive bst wire.
I ended up bringing it to a garage and they gave me a new battery and told me I had a fault with the airbag control unit, few days had passed and the battery fully died again.
Question is i obviously need to get a new bst cable but if I buy a used (airbag ecu) , can it just be connected and plug and play or will I have to get it programmed?
Also I am getting a (ccid 97) on the dash , is this the same problem?
Is this an expensive fix?
Am I fuc#Ed?
Any suggestions/ experience with problem welcome !
Cheers