I have a BMW 2 series gran tourer. It is a 161 model. The car has been in on average twice per year over the last 3 years for left rear light bulb replacement. Also on a number of occasions the boot opened whilst driving. The approved agent updated the software to remedy this fault within warranty. This resulted in a double lock being applied to all passenger doors and a double click of key to unlock car.
Over the last few months the car has being struggling to start and on two occasions I had to call out roadside assist to jumpstart the car.
I left the car into BMW approved dealer 5 days ago who advised that as the car is out of warranty I would be liable for a €90 diagnostics charge. Following an 8 hour diagnostic investigation a battery drain was indicated which necessitated the removal of two back seats and a wire by wire examination.
5 days later and the car is still in the garage and I have been advised that my bill is currently at €500 as the technician cannot identify the cause of the drain.
On the basis of the information provided can anyone offer any advise as to the cause of this problem and suggest as to whether the preexisting issued ie blown bulbs and boot door opening (whilst car was within warranty) may be related to the current issue