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Amazon.com: Replacement Key Battery VL2020 Fit for BMW 1 3 5 6 7 Series E90 E92 E93 Entry Keyless Remote Smart Remote Contril Key Fob : Automotive
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BMW Battery Replacement - Why register a new BMW battery? - European Car Repair in Dallas & Plano | European Auto Shop - Autoscope
![Battery Help, what's the purpose of this grey hose? Need to change the battery but the only one locally available in this size has no port for this hose to be attached. Battery Help, what's the purpose of this grey hose? Need to change the battery but the only one locally available in this size has no port for this hose to be attached.](https://preview.redd.it/vl6j58yg04571.jpg?width=640&crop=smart&auto=webp&s=9a6c329a839f58ae214c97a60dcf174b456829e8)
Battery Help, what's the purpose of this grey hose? Need to change the battery but the only one locally available in this size has no port for this hose to be attached.
![Just replaced my battery on a 2010 E90. Does it need reprogramming? Not sure it has the power management system? : r/BmwTech Just replaced my battery on a 2010 E90. Does it need reprogramming? Not sure it has the power management system? : r/BmwTech](https://i.redd.it/lu3uozrivxn71.jpg)