In this video I'm going to show you how to reset software (reset board computer).Car used in this video is BMW E92 320i 2007. The first thing to know is that most BMW key fobs use CR2032 batteries. These batteries can be found at most electronics stores or online. When replacing the battery, it’s important to use one with the same voltage and capacity as the original battery. Using Different Types of Battery. Using a different type of battery could damage your key fob. After a lot of forum reads and hundreds of brake light resets from the cockpit MMI, I decided to make a little write up of how to EASILY turn the rear brake If the battery is good and the car is not charging, then the alternator or wiring is bad. With the car running, ask the mechnaic "what is the voltage across the battery?". - If is over 12V (should be something like 14 volts) then the alternator is charging. - If the voltage is low, the alternator is probably bad. How to Replace Your BMW E90 Battery Project Time: 1HR Budget: $200CAD Tools you will need for this. Socket sizes 10MM and 13MM Flathead screw driver Safety gloves and goggles BMW battery registration tool For this example, we will be writing a guide on how to replace a battery for a BMW E90. BMW's sedans have a harder-to-reach battery than their SUV models. Each vehicle battery location and .

bmw e90 battery replacement reset