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D3 - Wheels and Tyres Refurbing, center caps, tyre brands, tyrefitters - discuss it here |
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#1
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Wider rears
Hi All, my recently bought car has been fitted with these:
Yokohama 265/35 R20 (99Y) Rears - Dunlop 255/ 35 ZR20 (97Y) Fronts. Not sure of the actual rims width. They will soon need replaced. Does it cause any issues long term? Is purely for appearance? Steve
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2003, A8 D3 4.0 TDI |
#2
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There's something to do with the actual circumference of the tyres and how if the differences are significant, it can upset the quattro system. One of the more experienced members on here should be able to give you a more precise answer.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
#3
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I'd say you need either 265/35/20 or 275/35/20 on front and rear, in ZR flavour and probably best to have 102Y load rating too. That's what my book and filler flap tells me for a 4.2 TDI on 20's.
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Lee 2017 Nissan Leaf Tekna Last edited by Lee S; 17th August 2016 at 02:56 PM. |
#4
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Difference in circumference should not be no more than 1%. With your tyres it works out 1.02% so just over it if the tyres have the same wear level. Front tyres wear faster so the difference will increase over time. Best to go for the same size front and rear or if you really want wider on the rear for looks then 295/30R20 would be better suited with only 0.22% difference.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure |
#5
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Interesting info, many thanks
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2003, A8 D3 4.0 TDI |
#6
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Yes, 1% will probably not cause the Quattro system to object but not really a good idea longer term, especially given the wear issue.
I'd me more worried about uneven/unpredictable handling with different tyre widths on the same rims. If you really want it to "look" wider just use spacers.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later) 1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! |
#7
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I'm not that interested in retaining the wider rears, interesting to hear how the quattro system would cope long term. Wear appears even, however I dont know if the tyres were fitted new. Spacers could be worth the look....
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2003, A8 D3 4.0 TDI |
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