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Rear Wheel Bearing - removal and installation

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
songzunhuang
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songzunhuang

Rear Wheel Bearing - removal and installation

Post by songzunhuang » Sat Mar 14, 2020 7:08 pm

My normally smooth and quiet car developed a droning noise. I suspected a wheel bearing and had it verified by an independent mechanic. However, his quote of $650 to replace one bearing made me pursue this myself. I offer it up to help others save a bundle.

New Part
After much searching, I decided to try a brand called Optimal. It was $116 with all bolts and has a 3 year warranty.
The OEM Volvo (or SKF) bearings were about $160-250 and the bolts were extra at $4 each!
Optimal.png
Optimal Wheel Bearing
Optimal.png (737.69 KiB) Viewed 177 times
Bar Trick
The trickiest part of this would be getting the center 14mm bolt off that secured the hub to the halfshaft. How do you turn it without the hub just going round and round. Well, here's the "bar trick". Use a prybar and a few wheel bolts to lock it in place while you turn. It was easy with this in place.
BarTrick.png
Easy way to get center bolt out.
BarTrick.png (1.26 MiB) Viewed 177 times
Remove all other bolts.
You'll need to remove the 10mm bolt that secures the brake disc and then the two 13mm bolts that hold the disc brake caliper in place. Tie the caliper up so that it's out of the way and there's no strain on the brakelines. Then give the brake disc center hub a few whacks with a baby sledgehammer and it'll pop loose. I hit it right where those yellow "X" marks are and it came right off (left picture).

Then you'll need to get the 4 bolts with 17mm heads that are holding the hub in place. They are accesses from behind
Bolts.png
Bolt removal.
Bolts.png (1.1 MiB) Viewed 177 times
Here are a few pictures of how I removed the 4 bolts holding the hub/bearing in place. The ratcheting 17mm wrench was key and made quick work of bolts 2 & 3. The others I had to use a socket. The are not hard to get to and if they are tight, a few whacks with a rubber mallet does the trick.
Bremove1.png
Bolts 2 & 3
Bremove1.png (783.75 KiB) Viewed 177 times
Bolts 1 & 4 were accessed using a socket wrench. Here's a picture (right) with the bolt locations very clear since the hub is off. As you can see, the hub shape will ensure that it only fits in one way.
Bremove2.png
Bolts 1 & 4
Bremove2.png (945.73 KiB) Viewed 177 times
Securing new Hub
Not much to say here. Just bolt it back in with a bit of threadlock for good measure.
I did notice that the bolts included with my hub kit had 15mm heads instead of 17mm. The bolts themselves were of the same diameter and they fit fine. However, since you are not supposed to reuse the old bolts, I just installed the new ones that came with the kit.
OldNew.png
Old and New.
OldNew.png (935.68 KiB) Viewed 177 times
So that's it. At this point, buttoning it back up is pretty straightforward.
I took the car for a drive and it's back to smooth and quiet again. This whole job took me about 1.5 hours as I was going slow and methodically taking pictures. Also, my car being in California, didn't have much gunk or rust at all. Nothing was stuck or otherwise overly difficult to remove. It was an easy job and definitely not worth giving the independent repair shop $650!
Ok, if they used a Volvo hub ($300 retail) then they would have charged me $350 for labor. Still, I only spent $116+$20 (overnight shipping). A bit of elbow grease and it's done.

Alright, I hope this helps you tackle this issue if it comes up for you. It's not hard.
Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

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matthew1
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matthew1

Re: Rear Wheel Bearing - removal and installation

Post by matthew1 » Sat Mar 14, 2020 7:17 pm

$650 :shock: :shock:

As you found, hubs are kinda easy. Biggest challenge is if the axle nut won't come off. I had to go to a shop to have one loosened once.

Great writeup, Song.

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songzunhuang
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songzunhuang

Re: Rear Wheel Bearing - removal and installation

Post by songzunhuang » Sun Mar 15, 2020 1:19 pm

matthew1 wrote:
Sat Mar 14, 2020 7:17 pm
$650 :shock: :shock:

As you found, hubs are kinda easy. Biggest challenge is if the axle nut won't come off. I had to go to a shop to have one loosened once.

Great writeup, Song.

Scheduled for inclusion into the Volvo Repair Database.
Thank's I'm home more, now working remotely since the office is asking people to stay back (COVID-19 precaution), so I find myself with a bit more time to update and record stuff that I have been doing. I'm catching up on service items for the cars. Glad to add back to the community. Also, you saw the axle nut trick with the breaker bar? That made it simple.
Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

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matthew1
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matthew1

Re: Rear Wheel Bearing - removal and installation

Post by matthew1 » Sun Mar 15, 2020 3:08 pm

I tried. WD-40 for a day, 3- or 4-foot cheat bar, lowering the car onto the bar, cursing, lucky rabbit's foot, walking backwards, throwing salt over my shoulder, speaking in tongues, huffing gas, summoning Omon Ra, and witchy incantations... nothing worked.
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. Click that when you go to buy something on Amazon and MVS gets a kickback.

1997 850 T5, MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace [gone]
2004 V70 R [gone]

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ggleavitt
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ggleavitt

Re: Rear Wheel Bearing - removal and installation

Post by ggleavitt » Sun Mar 15, 2020 5:54 pm

No bearing mudflaps, huh? OE comes with them in the box, at least my rears did. See thread for a discussion-https://forums.swedespeed.com/showthrea ... g-Mudflaps

Nice writeup !
2005 2.5T AWD-200k
2008 V8 AWD Sport-130k

cn90
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Re: Rear Wheel Bearing - removal and installation

Post by cn90 » Sun Mar 15, 2020 10:07 pm

The key thing with axle nut is, whether it is the newer P2 axle nut or the old-school P80 axle nut:
- Remove the nut when the tire is still on the ground. It is much simpler that way.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

songzunhuang
MVS Moderator
Posts: 293
Joined: Thu Jan 08, 2009 9:04 pm
Year and Model: 98 V70 T5, 2004 XC90
Location: Silicon Valley, CA
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songzunhuang

Re: Rear Wheel Bearing - removal and installation

Post by songzunhuang » Mon Mar 16, 2020 12:33 am

ggleavitt wrote:
Sun Mar 15, 2020 5:54 pm
No bearing mudflaps, huh? OE comes with them in the box, at least my rears did. See thread for a discussion-https://forums.swedespeed.com/showthrea ... g-Mudflaps

Nice writeup !
Thanks - I did see that the OEM kits had those and I almost ordered a set of the deflectors just to see what they were all about. After a bit of thought, I figured that my bearings lasted 155K miles without those bearing mudflaps, so I think I'll be ok. Maybe it's because where I live the weather is quite mild.
Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

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