Here is an overview of how the AWD works in the XC90. I gained most of this through research to figure out why mine wasn't working. This may help you source the reason for it not working. Mechanical overview - a gearbox (called the "Angle Gear") is bolted to the transmission on the passeng...

Well.... The local dealer is happy to fix it. $2082 for labor and $5465 in parts. I guess this XC will spend the rest of its life as a 2WD. They wouldn't give me a price breakdown on the parts but I know I can get a brand new Bevel gear from the VolvoWebstore for ~$1600 and the coupling that causes ...

Working on my nephew's '08 XC90 V8. He mentioned that the AWD didn't work so I crawled under to take a look and do some basic diags. Haldex seemed fine (applied 12V to the pump and it sounds fine), Differential seemed fine but then I grabbed the driveshaft with the vehicle in Park. It spins freely. ...

I am fixing my nephew's '08 V8 at the moment and would find it hard to recommend one. Nice power but a royal pain to work on. The only car I have ever worked on where I had to solicit my wifes help because my arm was too large to squeeze into the space required to connect a wire (alternator). As for...

Closing the loop: Installed VIDA and the correct amount to remove is 40ml in a 2008 XC90 V8. Differential should be filled until it starts to drip out (nothing removed).

thx
Todd

Don't forget ANY stretch bolts. Harmonic Balancer bolt, Suspension bolts (like the lower strut bolts) and head bolts are all designed to stretch when installed to the correct torque. Not only should you not reuse these bolts, you should not try to save a single penny when replacing them. Once they h...

Any chance you could check the software for the proper amount of fluid to remove from the Haldex and the rear differential after filling?

This is for a 2008 XC90 with the V8 engine.

thx
Todd

I have read multiple threads about changing the fluids in the back of the XC90 but am confused about 1 discrepancy: All of the posted tutorials on this end with the tech adding fluid and putting the plug back in but I have seen several video's that end with the tech removing some of the fluid. The a...

I ended up finding the correct part. So to close this loop for anyone else looking for this, the correct Volvo part number is: 30720098 When you say "cross hose" do you mean the one that connects the two heads over top of the lower intake? I have an '08 apart and flagged this hose for repl...

When you say "cross hose" do you mean the one that connects the two heads over top of the lower intake? I have an '08 apart and flagged this hose for replacement. It is pretty hard so I don't think it has much life left. Only problem is the local dealer can't find it on any of his parts li...