Bulb Failure - Low Beam & Day Running Light simultaneously

[alsviolante]

First time poster here.

Bought a 2004 S60 2.5T in the spring of 2019. I've had to do a whole bunch of things to it since, but this one has me stumped.

Last week, I got a Bulb Failure Low Beam message as well as a Bulb Failure Day Running Light message at the same time. I rarely drive at night but discovered a few days later that I have no regular headlights, the brights don't come on, nothing. The yellow lights on the sides of the headlights (running lights, I believe) are on, thought.

I, of course, have the fancier more expensive Bi-Xenon headlights. I had to take the car in today for an exhaust issue, and they told me the bulbs are $175 apiece. I decided to wait and try to figure this out rather than spending $400+ with labor to have them replace the bulbs potentially unnecessarily.

My question is: If the low beams are both out, as well as the brights, is this likely to be a bulb issue or something else? I have no warning message about the high beam bulbs, but they don't come on. I DO have a warning message about the running lights, but they seem to be fine.

I definitely don't know enough to get under the hood and check connections, wires, ballasts, etc., as I simply wouldn't know what to look for. I don't want to buy replacement bulbs if the issue is likely something else. The shop said they would "start with the bulbs and if that doesn't work they'd dig deeper" but I just don't want to start with something so pricey if that's likely not what's going on. They're a shop that specializes in European cars, and they've helped me a number of times before, so it's not that they're incapable in any way. They just seem to want to start with the simplest solution, it just so happens that the simplest solution is pretty expensive.

Any advice would be appreciated! Thank you!

[chrism]

Hang tight - Maybe someone here has the same headlights and can guide you through the process of temporarily applying direct power to the headlights to test the bulbs. Mine are the plain Jane headlights to I can’t tell you with certainty where you’ll find the connections on your high end lights. Probably tucked down right behind the headlights - maybe..... Small hands are a plus.

[alsviolante]

Hang tight - Maybe someone here has the same headlights and can guide you through the process of temporarily applying direct power to the headlights to test the bulbs. Mine are the plain Jane headlights to I can’t tell you with certainty where you’ll find the connections on your high end lights. Probably tucked down right behind the headlights - maybe..... Small hands are a plus.

I ended up checking the fuses under the hood and inside the driver door, and when I changed the one inside the driver door the right headlight came back on! I put new fuses in all applicable spots to get the left one back on, but perhaps that truly is a bulb out.

The reply above from another poster is worded to sound like they're the original poster, and it's actually a very slightly reworded version of a reply I posted on another website when someone suggested checking fuses and relays. Seems like some kind of strange bot or something.