Hi all

Have been having lots of issues with my 08 wagon. (windows, Ac, Stereo, Lights, Locking you name it its got a problem with it)

have narrowed down to faulty BCM (I thought this was the case, and had a 2nd opinion with auto Elec and advised car wasn't communicating with it nd recommended a replacement) so I've been looking into replacing and programming myself. (seems fairly straight forward in FORSCAN)

However reading through other forums it looks like I need 2 keys to be able to reprogram a new BCM to the car, However the car was sold to me years ago with only 1 key. i tracked down previous owner and he told me he also brought with only the 1 key (GREAT)

If I buy a blank and get this cut, am I able to program this key myself in order for it to be able to to get the BCM programmed and working?

I'm reading a lot of conflicting information on this topic.

car currently has aftermarket headunit installed and not the original. Worked fine for 2 years until suddently stopped working.

have you also checked out the solder joints in the BEM?. otherwise it's very easy to reprogram a BEM in Forscan. make sure you get the correct chip with the keys [buy two & have both cut, then program both] tho otherwise it won't work with the new keys [Forscan]. this is what i've used from this seller https://www.ebay.com.au/itm/223711431858. i've bought keys for my BA & her BF from that seller with no issue. i also use Forscan.

Yes, if you buy a blank key and cut it to fit your existing key, you can program the key yourself, provided your car allows it. Among Us