The one I bought is a 4pin LAD5GL looks like this:
This is the actual bad one currently in the vehicle - 4pin LAD5GL:
As you can see in the photos, the original and the one I bought look nearly identical except for a pesky connecting line, which he says makes it not fit.
This is the heatsink, which the mechanic says has to fit flush against the ballast:
I can see what he's saying about it not lining up and not fitting flush - I mentioned the thermal compound could be the issue but he said it was solid and he couldn't dig into it.
The mechanic says the VOLVO part number is 30727202. When I search for that part number all the pictures I can find look exactly like the one I bought. The only ones I can find that look like the one currently in my vehicle are older ('04-'06) used ones. I called Valeo tech support and they told me the one I bought is correct and it should fit.
The mechanic showed me the part from the dealership is nearly $400 and they don't provide a picture. He says he called the dealership and they told him the part I got is only for S60's and XC90s and right-side steering S80s but all the data online shows the 4pin LAD5GL should fit no problems. Does anyone have any experience with this or advice to offer?