@RB thanks for your reply.ill def have them check it as it might be much more involving than just the battery you just never know.they said they replaced the airbags but they say a lot of things with no papers in their hands.
I'll def shoot you a pm and /or post here what's wrong when It gets fixed..

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2006 X5 4.8is LeMans Blue / creambeige interior
Prod.date: 2006-06-21