Yes, it's the one and only key I received upon trading cars. I replaced the battery in it three years ago, and charge it on a Phillips Sonicare Toothbrush Charger (since I seldom drive the X much).

When I cut the case halves apart to change the battery, I accidently broke a small wire inside, and had to resolder it, and the keep has worked ever since, except for once when I'd run the main battery down to 11v, while testing things, and another time when I might not have insered the key in far enough (thick silicone cover, since cut away).

I do have 2 spares without the blades cut (remote functions only, in case I get locked out with the main key left inside...I always carry one with me), and an empty diamond key with the blade cut (standing by to use when I need to change the battery again, or when I delete the EWS).

I've been researching all morning on Google and YouTube to see how to

• 1) jumper the EWS module to test the starter (found),
• 2) replace the ignition switch block (found) and,
• 3) re-sync the Key with EWS and DME (watching that video now...update: requires an AK90+, MS43 Wiki downloads, and more computer skills than I possess, so no).

If, after jumping the EWS, and I find the start problem is EWS-related, and not a flukey starter (which I doubt), then I'll try and re-sync the key (while leaving the EWS jumped). I might just order a new ignition switch block, too. And I'm getting a "Car Key ECU Test Coil" just to make sure the EWS ring antenna is able to pick up the key chip.

There was a transmission "no comm" code, that worries me, but I might've caused it myself, trying the starter in avery position on the shifter, rapidly. Who knows?

__________________
01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"

Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E

Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide