Rotor size for 2008 XC90

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lancelyons
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Joined: Tue Nov 12, 2019 9:28 am
Year and Model: 2008
Location: LA

Rotor size for 2008 XC90

Post by lancelyons »

Hi, I am going to replace brakes for my daughters 2008 xc90 2wd. I dont have the car here to measure the rotor size and a couple dealers I called wouldnt tell me the size for her VIN.

the VIN is

YV4CY982581466669

Does anybody know how I can tell what the rotor size is from that VIN?

Thanks in advance

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ggleavitt
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Post by ggleavitt »

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Last edited by ggleavitt on Tue Apr 28, 2020 12:39 pm, edited 6 times in total.
2006 V8 AWD VOR-135k
2008 V8 AWD Sport-135k

wanderdüne
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Post by wanderdüne »

Also the 316 doesn't have any fins around the "hat" part of the rotor in the center.

cn90
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Post by cn90 »

Very easy to measure herself.
Or bring the car to a local mechanic to measure for her.
It took me 1 minute to measure the diameter of the rotor, no need to remove the wheels.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

GreenMagicMan
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Post by GreenMagicMan »

Had same big problem. Finally discovered great tip / hint: It's likely related to the wheel size if they are the stock wheels:
I think it was:
17" wheels are usually the smaller rotors: 316mm
18" wheels are usually the middle size: 328mm
19" wheels are usually the large size: 336mm

This actually worked perfectly for our 2007 XC90 SI6 engine car!! It WAS very hard to actually figure it out measuring them in person anyway, EVEN with the caliper and wheel totally off the car. The diameter measurement of the car was an in between measurement. And there were NO stampings anywhere on the brake rotor either - like is often the case where they are marked. Good luck!

VIN did not help us either, at the parts specialty store or the dealer. We got the wrong ones first 328. You could see in the parts were clearly different so we wound up getting the 336 in the end.
I would guess as you're 2WD you have the smallest size wheels - the 17" stock and therefore I would guess you have the 316mm.

wanderdüne
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Post by wanderdüne »

GreenMagicMan wrote: Mon Apr 27, 2020 7:45 am Had same big problem. Finally discovered great tip / hint: It's likely related to the wheel size if they are the stock wheels:
I think it was:
17" wheels are usually the smaller rotors: 316mm
18" wheels are usually the middle size: 328mm
19" wheels are usually the large size: 336mm

This actually worked perfectly for our 2007 XC90 SI6 engine car!! It WAS very hard to actually figure it out measuring them in person anyway, EVEN with the caliper and wheel totally off the car. The diameter measurement of the car was an in between measurement. And there were NO stampings anywhere on the brake rotor either - like is often the case where they are marked. Good luck!

VIN did not help us either, at the parts specialty store or the dealer. We got the wrong ones first 328. You could see in the parts were clearly different so we wound up getting the 336 in the end.
I would guess as you're 2WD you have the smallest size wheels - the 17" stock and therefore I would guess you have the 316mm.

OP: disregard this post.

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