E90 2010 key fob buttons not working

Duttyg · 01-13-2021, 04:36 PM

Hi, im new its prob come up a few times but i cant seem to find an answer. I have 2 key fobs the rechargeable 1's. Both keys work in the ignition but the buttons dont work. Ive replaced all the fuses. Central locking works fine via the key and button in the car. Fm and am stations work fine. So would i need a new diversity antenna amplifier module? And if i do will it need syncing with the car? Or will i need a new antenna but like ive said the radio works perfectly fine. Any help would be appreciated.

therealdb1 · 01-13-2021, 05:32 PM

Sounds like the batteries are knackered and are no longer holding a charge. They do not last forever!
If you or a friend are handy with a soldering iron, ignore what BMW will tell you which is buy a new key and replace the batteries in your existing fobs.
There are threads on this forum about doing it or use your favourite search engine to find a YouTube video it is not difficult.

NOTE: You must get rechargeable batteries for the replacement! The ordinary coin cells you find in other key fobs, calculators etc. are not rechargeable.

01-13-2021, 04:36 PM	#1
Duttyg Registered 0 Rep 1 Posts Drives: Bmw 320D Join Date: Jan 2021 Location: Northamptonshire iTrader: (0)	E90 2010 key fob buttons not working Hi, im new its prob come up a few times but i cant seem to find an answer. I have 2 key fobs the rechargeable 1's. Both keys work in the ignition but the buttons dont work. Ive replaced all the fuses. Central locking works fine via the key and button in the car. Fm and am stations work fine. So would i need a new diversity antenna amplifier module? And if i do will it need syncing with the car? Or will i need a new antenna but like ive said the radio works perfectly fine. Any help would be appreciated.
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01-13-2021, 05:32 PM	#2
therealdb1 Lieutenant 106 Rep 576 Posts Drives: Graphite E93 335i Join Date: Aug 2017 Location: Norfolk UK iTrader: (0)	Sounds like the batteries are knackered and are no longer holding a charge. They do not last forever! If you or a friend are handy with a soldering iron, ignore what BMW will tell you which is buy a new key and replace the batteries in your existing fobs. There are threads on this forum about doing it or use your favourite search engine to find a YouTube video it is not difficult. NOTE: You must get rechargeable batteries for the replacement! The ordinary coin cells you find in other key fobs, calculators etc. are not rechargeable.
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