Sorry this post is so late, but I've tended to check the 900 forum and not the S/V90 . Not sure why since I own a V90, but anyway I hd to replace these bulbs, if theya re the same as the toggles in the dash. They look like a tny candle with a white base.

Regardless, I found out that dealers, or at least dealr regions are free to set their own price on parts, and they can vary substantially. That's probably one reasn why Borton Volvo is so popular with the Brickboard. My dealerback in Illnois sell these bulbs for around $5 and the dealer here in Baltimore sell them for $9. I showed the dealer here the invoice and they matched it. Either way, these bubls are outrageously expensive. I did but them however, under the assumption that I won't have to replace them again.
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John Shatzer, '97 V90 @ 94K