Hi All I have replaced my car battery to Energiser instead of Panasonic. However, i notice that if i put the key inside my bag or pants pocket, it cant detect unless i hold the key and touch the door handle only can open... When i enter into the car, there is no key battery message appear. And i could press push start button without any problems. So i wonder what is possible issues?? Is it still because the car key battery or key or the car battery? Thanks.

Hey Guys, i have attached the video of 2009 BMW E60 LCI N52B30 . I have replaced valvetronic gasket, valve cover gasket, oil pan gasket, still discover oil stain after a week driving... have sent to 2 different workshop to rectify this issues. Please comment or advise whether this is related PCV system or any others issues. Thanks Mate