Installing BMW Alpine Stereo upgrade (BMW 3 series E90) - Remove back seat

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Remove back seat

To remove bottom part of the back seat, simply pull it up around the marked area.

BMW E90 back seat


Bottom part removed. It was held in place with these metal catches.

BMW E90 back seat removed


To remove back cushion, first unscrew two screws (torx size 50) located at the centre of the cushion.

BMW E90 rear seat cushion screws


Then, to release the upper part of the rear cushion, unclip two metal hooks accessible from inside of the boot. 

BMW E90 rear seat back hooks


Just push it to the side with a flat screwdriver until you hear a release sound.

BMW E90 rear seat back hook release


Repeat the same on the other side.

 BMW E90 rear seat back hook release

After this, simply maneuver the cushion out of the car. A help of another person helps, but is not necessary.


# jimborae 2015-04-23 09:29
Many thanks for this guide and the helpful tip contained within it. Found it invaluable when I was installing my Alpine upgrade, especially the part about the mis-labeling on the crossovers.
# Tich 2015-02-08 18:44
Nice DIY! love it..


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