How does e46 key charge

The longer you drive, the more the battery will charge and the more key presses you will be able to make.

Drive 30 hours total to fully recharge a dead key battery. The discharge time on the key battery is about 18 months. At this point, the battery or the entire key, depending on the model will just need to be replaced. Method 2. Invest in a wireless cell phone charger to double as a key charger. Wireless phone chargers charge cell phones by inductive charging, which uses electromagnetic fields to transfer energy between 2 objects.

Simply set your key on top of the charging pad and keep it there for a few hours or overnight. Charge the key on an electric toothbrush charger if you own one. The BMW key charges through induction and so does an electric toothbrush. Take the electric toothbrush off of its charging station and place the key there instead.

Place the key on a smart watch charging station if you have one. Simply set the key in the cradle of the smart watch charging station. Allow it to sit for about 30 minutes to recharge the battery in your key. Method 3. Insert the display key into the charging pocket for wireless charging.

Put the display key into the center of the pocket. Ensure that the blue LED light is illuminated. Once the display key is properly inserted into the charging pocket, the blue LED light will turn on to indicate that the key is charging.

Plug the display key into a micro USB cable for wired charging. Plug the device-connecting end of the micro USB cable into the charging port on the display key. This is a key generally used in hotel rooms to prevent any unauthorized entrance. When used to operate a given lock of a master-keyed lock system, this key prevents the lock from being opened by any other key, except an emergency key.

Not Helpful 1 Helpful 2. Include your email address to get a message when this question is answered. If the battery completely dies and will not charge at all, check with your local dealership for options. I now have to use one key to open the car and another to start it. Not ideal.

Can these keys be fixed? Try this: Take the key that works for the ignition. Get inside the car and close all doors. Switch the ignition briefly to position 1 and then switch off again position 0 - this must be done under 5 seconds. Take out the key, get out of the car and close the door. While holding down the unlock button, press button the lock button 3 times and then release both buttons - this must be done under 10 seconds. A successful initialization will be acknowledged by an automatic locking and unlocking of the car.

That's a can of worms. Thanks, that's great. I now have 1 key that works properly. Just a query. I did as you said with the working key and it now opens the doors. BMW keys are charged while in the ignition. Will a BMW start with a dead key fob? For most car key fobs, the battery life is three to four years with normal use, Freeman says. He also says where you store your fob could affect the battery life. Once you receive your new E46 BMW key you can program the key yourself. Call the nearest service center to get a price quote for a new key.