I don't think the key can be programmed as a remote from outside the car.

Best bet for entry: locksmith trick of bend the door to Jimmy the door with a stiff wire. It will take two wires/rods since when double locked you have to hold down the central lock button for the door handle to unlock the door.

When I get into a locked car this way, the rubber handle off a needle nose pliers usually works great to bend the door without making a mark then use some construction shims to hold the door.

On some cars it's way easier to go *through* the door seal (if it's the big tube style) just a drop of silicone glue to fix the foam after. I can't remember if the x5 door seal is this type.

I just repaired my lock cylinder, you can buy the kit on Amazon for under $10 once you get in the car.

You can also "jump start" your key fob but I don't know if the programming will have stayed. You can poke needles through the fob in exactly the right place to get a battery voltage reading but you could apply voltage to get power to the fob if the battery is dead.

The problem is it's far more likely a solder joint is broken then dead battery but it's worth a shot.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)