Remove the steering wheel or airbag from a 2004 Volvo XC90?

Fix Power Steering Leaks Volvo XC90 (2003-2014) - 2004 ...

www.carcarekiosk.com/.../2004_Volvo_XC90_T6...steering.../fix_leaks
Correct power steering fluid levels help make your 2004 Volvo XC90 T6 2.9L 6 Cyl. ... If the steering wheel is difficult to turn or you noticed power steering fluid leaking from ...A small power steering fluid leak can make your XC90 hard to turn.

Think you'll struggle to get a part number for the actual full rack but there are service kits available for them mate
Service kits steering box Fits 2004 Volvo XC90 2 9l 6 cylinder Turbo T6...

Let me start by saying I do not recommend that anyone other than a mechanic attempts this. Airbags are very dangerous to work on and should be left to professionals. If you do choose to do this yourself, take your time and be careful.

On the back side of the steering wheel there are access holes to the screws which hold the airbag in place. Before attempting anything involving an airbag, make sure to disconnect the battery and leave it disconnected for at least an hour to be safe. The required time to deactivate the airbag is less but please be safe. I don't remember the size but the bolts are torx. Once you remove them the airbag assembly will slide right out. Behind it is the ribbon cable attaching it to the steering wheel. Be very careful when removing this as to not damage the clock spring or the wiring. Good luck and please be careful.

Disarm the Supplemental RestraintSystem (SRS) (airbag) Remove the airbag assembly. Partially remove the steering wheel retaining bolt. Leave the bolt in the column to push on it. Install a steering wheel puller.(Available at almost any parts store) Remove steering wheel puller, steering wheel and bolt once steering wheel has popped loose from the steering shaft.

THIS IS JOB BEST FOR VOLVO DEALERSHIP.BECAUSE YOU HAVE TO REMOVE DASH TO GET BLOWER MOTOR OUT.AND REMOVE AIRBAG MODULE.

that sounds like you are low on power steering fluid ... when the level gets low then the pump starts to ingest air and that produces a buzzing sound when you turn the wheel .....i would add or change the fluid and check for leaks and mechanical loosness in the under car linkages ...you can have that checked at your next oil change .

spray ignition with graphite

The procedure to remove the ignition switch is

1. Start by disconnecting you negative battery cable.
2. Wait at least 1 minute to disable your airbag system.
3. Remove the airbag from the steering wheel, it's retained by a couple bolts on the back of the steering wheel.
4. Disconnect the wires to it, and set it aside.
5. Remove the clip that is above the lock nut for the steering wheel, then remove the lock nut.
6. You need a steering wheel puller to pull the steering wheel off. After you remove the steering wheel, you should have access to the turn signal switch.

Do you have a tilt or telescopic feature on this Volvo? if so could be an adjustment is needed,If not and you do have a steering wheel mounted air bag I would call your dealer to fix this or at least a certified Volvo repair shop

remove the airbag !!! but disconnect the battery first and leave it for 10mins or so every thing is behind the airbag.