adamridgeway Discussion starter · Mar 14, 2018. Just brought an e91 touring and both key fobs don't work. The newer looking key fob has a battery you can change and the older looking one doesn't. I'm guessing it's probably a programming issue but not sure if this model has a battery in the remote or is the rechargeable type. This way , It's much easier. Those photos don't seem to be connecting to the terminals under the hood like the original question was intended. I've read multiple places not to hook straight to the battery and my owners manual states specifically to charge and/or jump from the terminals under the hood. Connecting directly to the battery bypasses 1993 BMW 3 SERIES – E36 (318i, 3181s, 3251, 325is) Electrical Troubleshooting Manual (PN 01 00 1 468 774) Vehicles Produced 09/92 to 08/93. The…. This 2006-2010 BMW 3 Series (E90 E91 E92 E93) Service Manual incl. Wiring Diagrams is your digital source for BMW 3-Series. Free Download. BMW E91 BATTERY REPLACEMENT E90 E92 E93 325i 328i 330i 335i 335d 325xi 328xi - YouTube. 0:00 / 9:59. In this video I'm going to show you how to simply enable this little trick so you could start your BMW without inserted key. HOW TO JUMP START BMW E90 E91 E92 325i 328i 330i 320i 318i 316i 318d 320d 325d 330d 335dIf you want to see how to jump start BMW with dead battery in this vi This is also something I don't understand, as a charger like the CTEK MXS 5.0 moves to Step 4 at about 80% SoC. It must be getting changes in battery 'feedback' to move onto step 4 and through to step 7, float. Quote: STEP 3 BULK. Charging with maximum current until approximately 80% battery capacity. Attached Images. BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > E93 battery location? Google Search Search Forums NrEM.