SirChargesAlot
Well-known member
Lookin good! Gotta say I do love that classic 5 spoke Audi wheel. I would totally run that all year!
Has anyone tried 16" wheels on their A3 e-tron?
- Thread starter SirChargesAlot
- Start date
Help Support Audi A3 E-tron Forum:
SirChargesAlot
Well-known member
I did a lot of research back in the day when it was time to move up the badge ladder. From VW I was going to go for an M3 or an S4. The B8 S4 was one of the nicest cars I’ve ever owned and likely to ever own. BMW no thanks!
I am definitely happy the tpms doesn’t require physical sensors in the wheels. My understanding is that the car measures wheel rotations and compares the rate of rotations to other wheels.
When one of the wheels rotates more times than the others due to it having a smaller diameter it’ll throw the tpms light and tell you what corner. The downside to this system is that you cannot actually measure current PSI which would be very nice but not sure it’s worth the extra hassle.
Tire shops tend to break them and they cost a lot to replace.
I actually went the other direction and retrofitted direct TPMS on my MQB Mk7 GSW....liked it so much that I put it on our A3 e-tron as well.
Cost wasn't terrible - sensors are like $10ea, and the module and wiring is another $40. Some coding in VCDS and it worked....on the GSW. On the A3 e-tron (which is much the same car as the GSW), though...the configuration of the MIB made it a nightmare. I did get it to work - showing tire pressures (but tire temp never worked) - but with more testing (purposely deflating one tire a bit), as soon as it popped up the error, it required VCDS to reset it (not necessary in my GSW).
So, I gave up and went back to the old-fashioned indirect TPMS (which uses the ABS sensor speed at each wheel).
Cost wasn't terrible - sensors are like $10ea, and the module and wiring is another $40. Some coding in VCDS and it worked....on the GSW. On the A3 e-tron (which is much the same car as the GSW), though...the configuration of the MIB made it a nightmare. I did get it to work - showing tire pressures (but tire temp never worked) - but with more testing (purposely deflating one tire a bit), as soon as it popped up the error, it required VCDS to reset it (not necessary in my GSW).
So, I gave up and went back to the old-fashioned indirect TPMS (which uses the ABS sensor speed at each wheel).
ahem to measure PSI I just use those old fashioned thingies that have been around since the dawn of the automobile...
actually this reminds me of one of my friends who had an older A3 with the 2.0T and an oil consumption problem. He thought that the oil pressure light was the same thing as a low oil level warning... (not really but perhaps in an indirect way) so he only added oil when he got an oil pressure warning... somehow that engine managed to survive and never blew up by the time that he sold it.icee
Active member
Have you noticed any increases in total EV range or overall MPG improvements with the new setup?
I went the other direction with my E-Golf and went from 16" wheels with the OEM Eco tires to 19" Pretoria wheels with MAX performance summer tires. While the car looked awesome and the grip was insane, my total range was cut from 124 miles to about 80. The acceleration of the E-Golf also felt much more muted and asthmatic. I went back to the 16" Astana to get my range back.
I'm curious how going your route of 16" BBS wheels with Michelin Energy Saver tires would perform.
SirChargesAlot
Well-known member
I haven't done any scientific A/B testing, but yes, I do believe I have gained range with this setup. The car is lighter on it's feet. Rotational mass reduction has always worked wonders in my experience and my philosophy has been that the wheels only need to be as large as they need to be to clear the brake calipersHave you noticed any increases in total EV range or overall MPG improvements with the new setup?
I went the other direction with my E-Golf and went from 16" wheels with the OEM Eco tires to 19" Pretoria wheels with MAX performance summer tires. While the car looked awesome and the grip was insane, my total range was cut from 124 miles to about 80. The acceleration of the E-Golf also felt much more muted and asthmatic. I went back to the 16" Astana to get my range back.
I'm curious how going your route of 16" BBS wheels with Michelin Energy Saver tires would perform.
I believe you, when you say the range decreased that much after up sizing the wheels. Do you remember the weight difference between the 16s and 19s?
I'm still very happy with the 16" setup I got, even with the run flats, it's a much improved quality of life. If you chose to reduce weight and rolling resistence, I would love to hear your impressions after some time behind the wheel.
icee
Active member
Going by the VW wheel specs I found online, the 16" Astana wheels are 20.5 lbs while the 19" Pretoria's are 22.2 lbs.
With tires, the 16" with Ecopia EP422 Plus tires weigh in at around 38 lbs each with 19K miles of wear on them. The 19" Pretoria's with Continental ContiSportContact 5P tires were around 42 lbs each.
Yeah...I increased the amount of rotational mass on the car along with super sticky tires. Not the brightest move on my part in terms of economy but like I said, it looked awesome and the E-Golf handled like it was on rails!
Keep us updated if you put together range / MPG data comparisons!
With tires, the 16" with Ecopia EP422 Plus tires weigh in at around 38 lbs each with 19K miles of wear on them. The 19" Pretoria's with Continental ContiSportContact 5P tires were around 42 lbs each.
Yeah...I increased the amount of rotational mass on the car along with super sticky tires. Not the brightest move on my part in terms of economy but like I said, it looked awesome and the E-Golf handled like it was on rails!
Keep us updated if you put together range / MPG data comparisons!
SirChargesAlot
Well-known member
Going by the VW wheel specs I found online, the 16" Astana wheels are 20.5 lbs while the 19" Pretoria's are 22.2 lbs.
With tires, the 16" with Ecopia EP422 Plus tires weigh in at around 38 lbs each with 19K miles of wear on them. The 19" Pretoria's with Continental ContiSportContact 5P tires were around 42 lbs each.
Yeah...I increased the amount of rotational mass on the car along with super sticky tires. Not the brightest move on my part in terms of economy but like I said, it looked awesome and the E-Golf handled like it was on rails!
Keep us updated if you put together range / MPG data comparisons!
It's all about what you're after. Everyone is entitled to their wishes, desires and ****, we all work hard for our cash, we can spend it how we like and no justification is necessary.
I have the 18 inches 20 spoke wheels, part of the Sport package. The ride is very good on smother surface's - but potholes and road seams, sewer covers are quite jarring. The 41 PSI setting called for may be good for economy, but just to much for ride comfort. I lowered my Tires to 36 PSI and the ride improved significantly. And I have not seen a big difference in EV Range. I still get up to 20 miles on a full charge to the ICE switching to Highbred.
Now part of this may be the fact that the tires are new and are a Used Car Dealer installed low cost brand. At 36 PSI, I also find the handling on twisty roads has improved, Steering feel and turn in is actually better, so I think these tires just do not fit that 41 PSI setting the factory called for with a different all-season tire brand speck. Maybe a stiffer side wall construction then what Audi called for?
Now part of this may be the fact that the tires are new and are a Used Car Dealer installed low cost brand. At 36 PSI, I also find the handling on twisty roads has improved, Steering feel and turn in is actually better, so I think these tires just do not fit that 41 PSI setting the factory called for with a different all-season tire brand speck. Maybe a stiffer side wall construction then what Audi called for?
SirChargesAlot
Well-known member
20 miles is quite the range! I've managed 22 miles once, but the route included a lot of downhill. I routinely hit the estimated 16-ish miles, but 20 is impressive. I imagine if there is a lot of downhill, the added rotating mass of the 18" wheels actually improves economy because it takes more friction to slow the car down, hence a bit more regen. This is all theory at the end of the day, not sure how much impact that would have realistically.
Do you get 20 miles routinely? Or was that an exceptional run?
I would caution you against going with less than Audi's requirements on sidewall stiffness, the car is very heavy for it's size, and with the 18" wheels, the probability of sidewall bubbles and wheel damage would increase. I speak from the perspective of current day and age bay area roads, which is terrible. I swear we actually need SUVs to drive on-road, forget about off-road. Within 2 days of owning the A3e, I hit a pothole which pulled a chunck off of the tire tread right off, it was a weird cut type of damage, but it was clear to me that I had to downsize my wheels so I can focus on actual driving and not play a game of dodging potholes and road imperfections. If we had clean, well maintained roads, I'm sure the 18s would have been just fine.
I do have to say the 18" sport package wheels are quite beautiful. Mine will be up for sale though as soon as I can make the time to post them up.
The 20 miles range is common for us in this spring & summer driving. But is only if we stay off the Freeway (60+ mph)... day time - no A/C - just music and fresh air - DRL back and front. We can do most of our suburban errands within 10 miles. Some of that has hills as the firsts two miles leaving our home going South, West or East require and up and over hills that are perhaps a quarter mile up & back down.
As for the tires 225/40 r18 92V M&S - have an "EXTRA LOAD" Label - and 1389 lb. MAX LOAD rating. The Audi spec tire is a 92H.
As the A3 is 3665 lb. and we are commonly less that 500lb with lots of stuff, that should give us a comfortable 25% extra load capacity before we stress these tires. And we are blessed with better roads in most of our travels. I often hear Jay Leno complain about blowing tires on his cars due to LA Potholes.
This is a second car for us and the Golf Alltrack takes the longer trips for holiday travel, as it is much bigger - though only 300 lbs. lighter, it has 225/45 tires and a higher load capacity with this somewhat taller tire.
One reason I did not consider an Audi Q3 Q5 Q7 or other EV is the weight. some of these are a full 1500 lbs. heavier that the A3 Etron. Driving around a 4200 pound SUV for a two person family makes no sense to me.
As for the tires 225/40 r18 92V M&S - have an "EXTRA LOAD" Label - and 1389 lb. MAX LOAD rating. The Audi spec tire is a 92H.
As the A3 is 3665 lb. and we are commonly less that 500lb with lots of stuff, that should give us a comfortable 25% extra load capacity before we stress these tires. And we are blessed with better roads in most of our travels. I often hear Jay Leno complain about blowing tires on his cars due to LA Potholes.
This is a second car for us and the Golf Alltrack takes the longer trips for holiday travel, as it is much bigger - though only 300 lbs. lighter, it has 225/45 tires and a higher load capacity with this somewhat taller tire.
One reason I did not consider an Audi Q3 Q5 Q7 or other EV is the weight. some of these are a full 1500 lbs. heavier that the A3 Etron. Driving around a 4200 pound SUV for a two person family makes no sense to me.
New info on the Weght of our e-tron. And the need for Extra Load tires?
Looking at spec on all the A3 models I discovered that the Conveteble weighs about 10 pounds more the e-tron. 3627 pounds vs 3616. And is equipped with similar tire & wheel options.
So we do not need to feel like our efficiency focused A3 is a burden to our highways. Or need special tires. Yes it is heavy compared to the sedan, but a "Light" weight Porsche Tubo S is 3665 pounds...
Looking at spec on all the A3 models I discovered that the Conveteble weighs about 10 pounds more the e-tron. 3627 pounds vs 3616. And is equipped with similar tire & wheel options.
So we do not need to feel like our efficiency focused A3 is a burden to our highways. Or need special tires. Yes it is heavy compared to the sedan, but a "Light" weight Porsche Tubo S is 3665 pounds...
bruceparker
New member
- Joined
- Nov 15, 2018
- Messages
- 4
bruceparker
New member
- Joined
- Nov 15, 2018
- Messages
- 4
16” wheels are better than 17 or 18” except for styling. Better bump tolerance, lower rolling resistance.
I have worn out a set of 245/45-17 Michelin tires: no interference.
I have worn out a set of 245/45-17 Michelin tires: no interference.
SirChargesAlot
Well-known member
I definitely am enjoying this car much more since I put the 16s on. No regrets, it's been a step up. Over the years, I've grown to enjoy the aesthetics quite a bit as well. Although I won't disagree, the OEM 18s do look pretty slick on this car. But I won't be going back to them.