TheWatcher wroteI don’t want to upsize, but if the Pilot Sport AS4 is not being produced in the 315/30r22 as Michelin told me today (not in their system)the I will have to do what everyone else on this thread has done. The problem is mine is lowered.Can I ask you what is your reason that you wish to upsize the tires?
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05-11-2026LAST POST
Ludilo wroteI got mine from simple tire but discount tire also has them.Where are you guys ordering the upsized DWS06 tires from? Not bringing them up for me on tirerack.
gamn1 wroteWe’ve had our set a year now and have had no issues. Our dealer installed them for us and they did ask me “do you realize these are larger tires “. I said yes and they are within tolerance and many have done it. So he checked and said your right, they are well within tolerance and had no issue installing them for us. I would hope they would then take care of me if something went wrong somewhere.Any concern when getting factory service or warranty coverage having upsized non * rated tires on the x5 ? I am very new to this with a 7 month only 2025 x5 xdrive 40i. I purchased some 742m wheels to replace my 740m wheels just needing to get new tires. Read several post these included about slight upsize tires improving the overall ride. Then reading other post several warn about transfer case failures not being covered due to non * rated tires and oversized tires.
Will the dealer flag the x5 when brought in for routine maintenance or warranty work?
Appreciate any comments.
To me it’s a total bush league move to deny a warranty claim when everything is well within tolerance.
I would make sure though you check with your dealer if your worried they would cover a claim or not.
Ludilo wroteSeems like tire rack doesn’t sell those specific sizes. Weird.Where are you guys ordering the upsized DWS06 tires from? Not bringing them up for me on tirerack.
Upsizing will change the speedo approx +1.5 mph (BMW's and most Euro's already have a habit of over reporting actual mph). Increase Dia approx 1" (this will be a little more forgiving on NY roads and will fill out wheel arches)
In terms of MPG the display will show less MPG but actual real world MPG will be unchanged (Do research this is factual). Interestingly though the odometer will also display less mileage (a function of the larger circumference/Dia) for example after 50k miles the Odometer will read almost 1800 miles less mileage...this is good (warranty time period will last longer)
All that to say...there are great benefits in this case (this car, with this setup) to upsizing.
ChiCityN20 wroteany chance you still have that code?They have a 20% coupon code. I can refer you if you PM me your email
SliceandDice wroteDid you end up running the upsized tires?I have a 2025 X5 with xDrive40i with the 22" 742M wheels. Also have the adaptive M suspension and the M sport brakes. Just wanted to confirm with the experts on the forum that I will be able to fit the following tires (with more sidewall) and not have rubbing issues.
-275 40 22 front
-315 35 22 rear
I know the rolling diameter is 30.7 and others have said as long as under 31.0 should be fine but I wanted to make sure that still applies to having the adaptive M suspension and the M sport brakes. I have read the M suspension is lowered 10 mm. Thanks in advance for any reassurance.
apeas2 wroteAlso curious about this. I don't see much outside of this thread talking about these tire sizes so I am admittedly skeptical, despite reading this entire thread 5 times over. I can't help but think if running these sizes was so straight forward, it would be all over the placeThe new pilot sport AS4 rears are now back ordered until feb. Are you all 275/40r22 and 315/35r22 folks still happy? I have m pro suspension but don’t think it’s going to be a problem. Thanks.
Sevn86 wroteI just ordered another set from Simple Tire. Last time I had a coupon code from another member, but not this time. I also got a coupon to give to someone else last time when I ordered. This time I haven't gotten one to give. I will check to see if I can get one and get it to you.Ended up with a flat last night on the passenger side rear and it’s not repairable. I’m looking to just change out the tires at this point even though I have only 16,700 miles on the vehicle. Looking to upsize and go with the continental DWS 06 + that are recommended here. Anyone know of any coupon codes or the most affordable place to order them from? If not, I guess I’ll pull the trigger with the discount tire. Thanks!
I looked and looked. Must have ended that referral program? Couldn't find anything on it this time.
This time the same dealer that did the install last year on my wife's car calls me and says I know you mentioned that you were aware of the upsize, but our mechanic is saying these won't work. I said yes, they will as you installed a set last year on our X5 and you were good with it. We have had zero issues. I could hear the mechanic in the background talking so I asked if I could talk with him. He's like hey these are going to shred the inside of your wheel well and won't work. I said is it because the M50 sits lower than the 40i you did this on last year? He said not sure, but they won't work. He said he did something similar on my wife's car and it tore it up. I said what does she drive and he said X5. For some reason I got this feeling he really didn't know and was just trying to talk me out of it. I told him to install them as we've had no issues and that I've seen many people do it. I've now been driving for 5 days on them and absolutely no issues. I think these guys just panic at the site of doing something different and all the rules and such. So just an FYI.
As far as the tires go from the summer Pirellis these ride better and take the harsh bumps and impacts way better. They also lost little if any in the handling department. So, these really are a great all year-round upgrade. I would never go back to a summer only tire unless I lived in a warm climate state. These are much cheaper, should last longer and are good in the winter. No brainer.
LuckyBrand wroteI appreciate you looking for me! I ended up ordering from discount tire on Monday and got them installed Tuesday. Couldn't wait as I was on a spare all weekend. Discount tire was offering 5% off for using their credit card (which I have) and I got another $110 mail in rebate. So out the door was $2,190 but this includes $353 in tire warranty through them.I just ordered another set from Simple Tire. Last time I had a coupon code from another member, but not this time. I also got a coupon to give to someone else last time when I ordered. This time I haven't gotten one to give. I will check to see if I can get one and get it to you.
I looked and looked. Must have ended that referral program? Couldn't find anything on it this time.
So far I'm loving the ride and I wish I upsized sooner. You can definitely tell that the new tires take road imperfections so much better compared to the stock tires. I do think these will slightly decrease my range but I'm good with that.
Glad you got some money off anyways and got the tires installed.
I think everyone in this thread has positive reviews on doing this. I don't see any negatives to it. Except if a dealer tried to pin an issue on an upsize tire which is bs. If the ratio is correct it doesn't matter. But we know how they try and get out of covering stuff.
Anyways, like you said the ride is much improved and I think the steering is better on mine vs the summer Pirellis. Quicker and sharper which I wouldn't have thought. On my wife's 40i the mpg didn't really change. Not sure on my 50 if it will much or not. Were now into colder weather so it will drop regardless. I'll have to wait till warmer weather comes back to get a true feel on that.
apeas2 wroteYes, very happy still.The new pilot sport AS4 rears are now back ordered until feb. Are you all 275/40r22 and 315/35r22 folks still happy? I have m pro suspension but don’t think it’s going to be a problem. Thanks.
I am currently running the stock Pirellis on my M60i with 275/35/R22 in the front and 315/30/R22 in the rear.
I am considering changing only the rear tires to 315/35/R22, and I wanted to check if this would cause any issues such as rubbing, fitment problems, or speedometer inaccuracy while keeping the fronts at the stock size of 275/35/R22.
If anyone has tried this setup or knows whether the increased sidewall height in the rear alone could cause any issues, I would appreciate your guidance.
godofwar4 wroteThe 315/35 will fit fine in the rear but I personally wouldn’t do this while also running 275/35 in the front.I am considering changing only the rear tires to 315/35/R22, and I wanted to check if this would cause any issues such as rubbing, fitment problems, or speedometer inaccuracy while keeping the fronts at the stock size of 275/35/R22.
godofwar4 wroteYou would have different overall diameters. The wheels would spin at different rotational speeds, which will likely destroy your transfer case.I am considering changing only the rear tires to 315/35/R22, and I wanted to check if this would cause any issues
Edit: if you have only rear-wheel drive, then it might be fine. Cars with air suspension would think the car is always going uphill and attempt to compensate?
My door jam's tire pressure sticker recommends 39psi F/45psi R. I usually run 1psi lower since I am not driving with a full load, so 38F/44R.
With the larger profile tires (275/40/22 and 315/35/22), I am thinking of running 37F and 43R. I think that will be a good balance of comfort and handling.
