I paid $158 for the H8-AGM battery and 3 weeks later took to Fields where they registered battery to car for $75. It is the exact same battery as the BMW branded battery. Johnson Controls/Exide makes the battery here in US. Autozone has a complete unconditional 3 year warranty and 7 year prorated warranty if you buy it from them. You may end up having to replace your battery sooner than expected. Battery registration (and coding if you change the specs of the battery like from a 90 AH to a 105 AH) is a much discussed topic on the new generation BMW forums (e90/e60/e65/e70-up etc). OCPTY 2 X Flip Key Entry Remote Control Key Fob Replacement for 2007-2013 for BMW X5 /X6 /Z4 /1/3 /5 2006-2010 for BMW 6 2002-2009 for BMW 7 2010-2012 for BMW 7 3 Buttons. 3.2 (23) Save 5%. $3515 $36.99. Lowest price in 30 days. FREE delivery Mon, Mar 27. Or fastest delivery Fri, Mar 24. 1) Insert key into the ignition and turn it to the first position, where the drivers info center turns on and a few dummy lights, turn it back off within 5 seconds. 3) Press and hold the unlock button, then push the BMW roundel (lock button) 3 times, pausing for about 2 seconds in between each press. 2. 2N2OUT. 91 posts · Joined 2017. #7 · Oct 30, 2017. I know this is an old thread, but because it came up when I was searching for battery replacement info, I would add that somewhere along the way the battery changed. My 2016 keyfob required a CR2032 battery. 2016 K1600 GT Premium. 2011 R1200 GS. Rick92040. Hey fellow empty pocketers, I recently decided to change the battery in my e46 key. So about 8 months ago my key battery completely died, so I decided to just leave it and start using my door lock. Well Canada gets pretty cold in the winter, and my door lock decided to freeze up on me, and when I tried unlocking it the door lock cylinder snapped. BMW E39 Key Initialization Procedure. The 1st pic below is the instructions for the old style (rubber head) key, the 2nd pic below is the instructions for the new style (diamond shaped) key & the 3rd pic is for the 2 button IR (infrared) keys that are not used here in the USA: Thanks Q! Edit: If the images in Q's post fail to load, I've hosted .

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