How to correctly charge the battery on a BMW. Buy The Battery Charger HERE: An often misunderstood and unappreciated point when it comes to replacing the battery in modern, late-model BMW’s is that the new battery has to be “registered” or matched to the onboard ECU for proper operation and battery longevity. You may be wondering why this is necessary, and some armchair experts out there on the web […] I think this is normal - I used an installer who does tons of BMWs - hopefully someone can confirm. Then I found out the cost for a new one I was quoted $650 - $400 for the battery and $250 in labor. They ended up price matching another nearby dealer who was about $100 cheaper. Labor stayed at $240 - what a rip. The specs on both batteries are close at 850 CCA but the new ODYSSEY is only 80Ah while the installed OEM one is 92. Note that the OEM battery spec'd for the 2014 M235i is also 80Ah with the 92Ah battery that is in there being discontinued. Switching the batteries is simple with simple tools and 10 minutes. The following article gives detailed instructions on registering the battery, with a BMW obd2 scanner, after it has been replaced in your vehicle. Even though we have used a 2011 335i sedan to perform this repair, this article can be applied to any BMW vehicle with an intelligent battery sensor (IBS) with minor modifications. Insert it into the ignition. Turn the key to position 1, and then back. Repeat this move five times fast. You should hear a small click each time you move to position 1, but the engine should never turn over. Remove the key and place it back in the BMW fob. Now, you’ll use the buttons on the fob to finish the process. Location: Indiana, USA. iTrader: ( 0) If you have a 105 AH battery installed in your BMW…then what you need is a 95R (H9) replacement battery. They will normally run between 105-110 AH and if you have the $30 BimmerCode and Bimmerlink apps…you can code (if necessary) and register (necessary) the replacement battery. Figure 12 Replacing battery: Before installing a new battery, check that the battery vent line (green arrow) is not pinched, is in good condition and properly routed. Replace it if needed. Install the battery in the well, attach the vent line. Connect the positive (+) cable. Next connect the negative (-) cable. Install the battery hold down 1I3th.

bmw 2 series battery replacement