A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

Would wheels and tires from a B5 A4 1.8T fit on a C5 A6 2.7T?

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Old Jan 20, 2009 | 04:25 PM
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Default Would wheels and tires from a B5 A4 1.8T fit on a C5 A6 2.7T?

A friend and I are planning a 600 mile road trip through the Canadian Rockies at the end of Feb. (Seattle to Calgary/Banff). We'd like to take his A6 for the additional room, but he's only got all-season tires on his 17" stock rims (235-45/R17)

I've got a set of snow tires on my stock A4 wheels, 16" 10-spokes (205-55R16). I'm thinking it would be good insurance to put these wheels and tires on his car for the trip.

Would there be any 'dangerous' reasons that putting my wheels and tires on his car is not advised? Are the offsets different? Where could I find information about load ratings? I know the speedometer reading would be a little bit high, due to the difference in rolling diameter (checked an online calculator), but would there be any other bad side effects?
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Old Jan 20, 2009 | 04:28 PM
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Default offsets probably are different and they might not clear his brakes

plus it's gonna look like he's driving on bicycle tires
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Old Jan 20, 2009 | 04:33 PM
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Default Brakes *should* be fine. I've got A8 front rotors and S4 rears on my B5.

The rears on his car are piddly little things.

Offset, wheel/tire width and load rating are my 'real' questions. I don't know where I'd find the answer to these...

The bicycle tire look is all the rage in the great canadian north right now, didn't you get the memo?
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Old Jan 20, 2009 | 04:52 PM
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the smaller tires aren't gonna be able to hold that weight....memo? i missed it....8^)
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Old Jan 20, 2009 | 06:44 PM
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Default Purchase a used set.....I've seen some good deals on Craigslist, etc

in the $250-$650 price range, rims and snows...I bet now that winter is in full swing you could snag a deal...and let's face it no-seasons suck....
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Old Jan 21, 2009 | 06:59 AM
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Default These wheels?

<img src="http://www.wheelcollision.com/wccpix/58737.jpg">

They are listed as 16x7" ET45 offset, which might physically fit, but the biger question is what brand/model are the snow tires? If not the right load rating, your are taking a big risk.
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Old Jan 21, 2009 | 07:36 AM
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Default There are a couple of snow tires in that size that have the XL rating...

...which was a suprise:

Michelin Pilot Alpin PA3
Pirelli Winter 210 Sottzero

Strange thing is that the Dunlop 3D in that size has the "94" load rating but is not listed by Tire Rack with the "XL" even though the same load rating as the above tires.
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Old Jan 21, 2009 | 08:33 AM
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Default Yep, those wheels. Tires are Dunlop Wintersport 3D's, with the 94V service description/load rating.

I think. I need to confirm that. They might be the 91H service description/load rating.

What I don't know is how to interpret the load rating applicability to the car.
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Old Jan 21, 2009 | 08:35 AM
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Default I've tried to convince him, but he's got no storage space for the extra set.

and is not yet a believer in the power/value of good tires.

I'm just trying to make sure we get to our destination, and slapping on my wheels and tires would be one easy way to provide some extra 'insurance'.
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Old Jan 21, 2009 | 08:38 AM
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How would I determine the correct load rating number/type for a given vehicle weight and tire size?
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