The light bulb that illuminate the odometer in my BMW Z3 had to be replaced. I called the dealer because I was really busy and blah blah. Anyway I got an estimate of $127.50 for labor and they wanted to replace all the bulbs at $10 each because getting to them was so hard, bringing the total to nearly $200!
I ordered two bulbs from our host for less than $20. It took less than 20 minutes to disconnect the battery, get the instrument panel out, change the bulbs, put it back together, and reprogram the radio. The only trick was using a suction cup to pull the instrument panel out of the dash.
BMW - $200
Pelican and me - <$20.00
Only two screws hold it in, but there is no way to get any purchase on the instrument panel. I used the suction cup from a light bulb changer.