.. if you are close enough to the dealer you may want to visit the service manager with the key to the X. They can take the key and read it for any service performed at any certified BMW dealership. If you ask nicely sometimes they will print out your service history (especially if you inquire about a warranty, but '05 may limit your options, not sure).

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'14 X1 7000 miles

Hasta luego a

'10 X3 3.0 55k miles
'09 335i 55k miles
'08 528i 94k miles
'09 Mini 88k miles
'06 X5 3.0 112k miles
'04 X5 3.0 128k miles
'99 528i 120k miles