Fuse box diagram (location and assignment of electrical fuses and relays) for BMW 3-Series (316i, 316d, 318i, 318d, 320i, 320d, 232i, 325i, 325d, 328i, 330i, 330d The 2015 BMW 328i battery location is found in the trunk area in a compartment along the right side (passenger side) wall. Accessing it will involve removing the carpeted side wall panel and its clips. Gently pull away the panel, and there you’ll find your 2015 BMW 328i battery location. Battery Location in a BMW 3 Series. The 3 Series is BMW’s best selling model accounting for over 30% of the brand’s annual worldwide sales. If you drive one of the many 3 Series models, here is where you’ll find the battery: E46 Generation (1999-2006): The battery is located in the trunk on the right side under a removable plastic cover Like most BMWs, it's in the rear, underneath the floor, about where a spare tire well would be if the GT came with a spare tire. It's a huge battery. If this is your first BMW, keep in mind that when you replace one, it must be registered in the computer. This does several things, but maybe the most important issue is the car uses the battery Figure 2 Some cars have wiring issues that show up as strange electrical problems. One prime example of this is the faulty trunk wiring on the E36 3 Series. If your BMW's alarm system repeatedly refuses to arm the car--ÂÂÂ--instead, giving you the signal that a door is open or ajar--ÂÂÂ--there may be a problem with your trunk wiring. To charge your BMW key, try doing so while you drive. Just make sure it’s turned to position 1 or 2 while you’re driving, and your key will charge. You'll need to drive it for 30 minutes to charge your key enough to perform 15 presses. You can also charge your key with a wireless phone charger. Replace the battery. If the button cell battery in the key fob of 3 Series is replaced incorrectly or a battery is unsuitable, it can damage the vehicle key. Only replace drained batteries with new batteries in the same voltage, size, and specification. Make sure the battery is facing in the right direction when inserting it. On the 7-series cars, choose the Power Module (PM) window to access battery registration. Otherwise, the most common way to reach the battery registration is through the window labeled DME (Digital Motor Electronics). Just choose the appropriate window and then follow all the prompts. Mhuqda.

bmw 3 series battery location