A4 allroad (B9 Platform) Discussion Discussion forum for the B9 Audi A4 allroad quattro 2017-

My B9 allroad Build

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Old 06-21-2018, 06:17 AM
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Let's get a time and place and I'll be there, if I'm not roaming around the Atlantic seaboard.
Old 06-21-2018, 07:07 PM
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Originally Posted by breadbooze
Let's get a time and place and I'll be there, if I'm not roaming around the Atlantic seaboard.
Yes, how about it guys. Do we any takers for this Sunday? Maybe High Point State Park? Or elsewhere. Need at least half a dozen to make it interesting I'm guessing.
Old 07-10-2018, 06:00 PM
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Originally Posted by bob m
Hey 5door,

I'd like to see that Allroad too.
So, I'm assuming you drove it back from the West Coast yourself and that must have been an incredible ride.
I had it shipped from San Francisco to NJ; driving it would have been too much of a time commitment for me. I'd like to do a road trip that long at some point, though.

I'd be game for an Allroad meetup, but I have a feeling it would be difficult during the summer. My summer weekends are real busy; I assume that's the case for most people, as well.
Old 04-15-2021, 06:06 PM
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Default B9 Allroad - tires rubbing with 034 springs and 235/35R20

Just completed virtually identical build, 2018 Audi Allroad Prestige with 034motorsports lowering springs, HRE FF01 et25 with 255/35R20. I'm loving it, but front tires are rubbing against the fender. The only difference between my build and yours, as far as I can tell, is I'm running a different tire: I have Michelin Pilot Sport A/S 3+. I need to address rubbing on both front tires. I'm wondering if the problem is either (1) did you get et35 from HRE (I have et25) or (2) perhaps there's a significant tread width difference between my Michelin's and yours. Do you you recall the offset you used? Thanks! Do you have any other advice?
Old 04-15-2021, 06:27 PM
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The wheels are HRE FF01 20X9 ET25 and the tires are Michelin Pilot Sport 4S tires, 255/35R20. Tire width can definitely vary from one tire model to another.
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Old 04-21-2021, 01:53 PM
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Originally Posted by moltevolteaudi
Just completed virtually identical build, 2018 Audi Allroad Prestige with 034motorsports lowering springs, HRE FF01 et25 with 255/35R20. I'm loving it, but front tires are rubbing against the fender. The only difference between my build and yours, as far as I can tell, is I'm running a different tire: I have Michelin Pilot Sport A/S 3+. I need to address rubbing on both front tires. I'm wondering if the problem is either (1) did you get et35 from HRE (I have et25) or (2) perhaps there's a significant tread width difference between my Michelin's and yours. Do you you recall the offset you used? Thanks! Do you have any other advice?
"Virtually identical build"? The modification list on this allroad is quite extensive; I see this is your first post, warm welcome! Care to elaborate? "THE Gotland Green allroad" was my inspiration, would love to get more inspiration from your car! Post some pictures!

Regarding the rubbing: There's quite a few of us that have suspension modifications, and aftermarket wheels. I don't know of many, (or . . . not any) that have had rubbing issues. Personally, I have 20x9 ET29 wheels, with 255/35 Yokohama ADVAN Sport A/S+ tires. 034 springs. No rubbing issues. A few are even running 10" wide wheels with no issue. I have to think something else is going on for there to be rubbing?
Old 04-21-2021, 05:12 PM
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Wow, you've built a sharp looking car! From what I can see the interior looks like it matches mine precisely. Good decision to do the auto hold, it's such a great feature.
Old 04-21-2021, 07:23 PM
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Originally Posted by 5DoorS4
Wow, you've built a sharp looking car! From what I can see the interior looks like it matches mine precisely. Good decision to do the auto hold, it's such a great feature.
Inspiration, not a copy. Interior wise, I still need to do something about my steering wheel.

I think my low profile roof rails set mine apart. And I’ve painted the fender flairs and bumpers to match body color
Old 04-26-2021, 12:49 PM
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@cue good point, I should say that wheel/suspension combination is virtually identical: 034motorsports lowering springs, HRE FF01 et25 and 255/35R20 (as you pointed out, not the rest of the build!). It's good to hear you have no rubbing. I think I just ended up with some bad luck by a few millimeters. Comparing to your build, I am running et25, not et29 (so you have -4mm at the outer edge of the rim/fender) and then my Michelin Pilot Sport A/S 3+ have a wider tread (despite max width identical at 255mm). I noted that TireRack specs for your tire shows tread width of 8.5". Remarkably that's only 215.9mm for a 255 tire. Whereas Tirerack shows a tread width for my Michelin Pilot Sport A/S 3+ of 9.3" which is 236.2mm. So, that's a pretty big difference in tread width, 20.3mm total which is 10.1mm at the rim/fender. So, between your et29 (-4mm vs. my et25) and your narrower tread width (-10.1mm at the rim/fender vs. my Michelins) you've got 15mm more clearance which is more than a 1/2 inch. So, there you have it. Comparing those to the build above, it has Michelin Pilot Sport 4S with a tread width of 9", according to Tirerack, so that's 228.6mm, which is a whopping 7.6mm, or just 3.8mm at the rim/fender. That's why I talk about bad luck, because that's such a small amount, just over 1/8 inch (actually 5/32) and that's just the smallest fraction. Ugh. Right now, my plan is either (option 1) sell my brand new HRE FF01s and 255/35R20 Michelin Pilot Sport A/S then get perhaps BBS CI-R with a 245/40R19 with a narrower tread OR (option 2) try another set of tires, I could try 245/35R20, paying careful attention to tread width, but I am worried about ride quality. On the other hand, I suppose it may not be that bad if it's only 3.8mm less sidewall.




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Old 04-29-2021, 09:54 AM
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Default B9 Allroad lowering springs - why not just use stock / OEM A4 springs?

Hi, have you ever considered just installing OEM A4 springs as an alternative to lowering springs for the B9 Allroad? I installed 034motorsport lowering springs with 255/35R20 and I have 2 issues one of which I documented on the forum: (Issue #1) tires are rubbing see description (original post here and follow up here). BUT, in addition, I'm ALSO bottoming out regularly on the 034 motorsports springs (I have a Prestige B9 with adaptive dampers and I bottom out on all modes, not just Comfort). I could consider H&R springs or H&R coilovers, but now I am wondering -- why not just go to the dealer and get stock OEM A4 springs. What do you guys think?


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