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10-08-2019, 03:41 PM
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#1
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Junior Member
Join Date: Aug 2018
Posts: 11
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Isata 3 Tires
This newbie has a question about replacing tires. We noticed excessive wear on the outside tread of front tires on our 2019 Isata 3 FW. Driver’s side is almost bald and passenger side is not quite as bad. Mercedes said coach is out of alignment, which apparently is not uncommon when delivered. We’re obviously getting it aligned, but also now needing to buy new tires. We have 27,000 miles on the Continentals that came on the new coach. The four rear tires appear to be in good shape. So...is it necessary to replace ALL six tires now, or is it okay to replace just the front two? All of the threads I’ve found tend to speak about age of tires vs miles. I guess we’re one of few who use our coach quite a bit. Thanks in advance for any advice.
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10-08-2019, 03:58 PM
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#2
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Senior Member
Join Date: Aug 2016
Location: Canyon Lake, Texas
Posts: 1,824
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You can replace just the two steer tires on the front. I have been thinking about new tires at some point. You can replace with the Continental Vanco OEM or try something else. I think a few have gone with Michelin.
You have definitely been doing some driving to put 27k on a 2019. We just have 16k on our 2017.
__________________
2021 Isata 5 30FW
2022 Ford Ranger Tremor 4x4
(Previously owned a 2017 Isata 3 24FW)
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10-08-2019, 04:14 PM
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#3
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Junior Member
Join Date: Aug 2018
Posts: 11
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Thanks milkman55. My husband was looking at getting Michelin, which we have on our cars.
We’ve done three cross-country trips since we took delivery on August 1, 2018. The few issues that came up pale in comparison to how well this coach has performed.
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10-08-2019, 04:19 PM
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#4
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Senior Member
Join Date: Aug 2016
Location: Canyon Lake, Texas
Posts: 1,824
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Look for these. They are exact OEM replacement. Kind of hard to find. Discount Tires shows they had some of you have them near you.
MICHELIN
AGILIS CROSSCLIMATE
LT215 /85 R16 115R E1 BSW
__________________
2021 Isata 5 30FW
2022 Ford Ranger Tremor 4x4
(Previously owned a 2017 Isata 3 24FW)
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10-08-2019, 04:24 PM
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#5
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Junior Member
Join Date: Aug 2018
Posts: 11
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Those are the ones he wants. We’ve got a call into a truck tire shop that’s part of the FMCA Michelin Advantage Program for a quote. We’ll also contact a nearby America’s Tires (same as Discount Tires I believe).
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10-08-2019, 04:24 PM
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#6
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Senior Member
Join Date: Sep 2019
Posts: 1,673
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there is several ways to look at this.
option a:
Keep rotating all your tires all the time.
(only works if done from beginning)
Option b:
Some people never rotate dually tires, they just keep throwing front tires at it.
Option B:
replace the 4 rear tires with better tires, then move 2 of the old rear ones on front, now you are left with the other 2 old rear tires for when next set of front wear out.
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10-08-2019, 04:35 PM
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#7
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Junior Member
Join Date: Aug 2018
Posts: 11
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Thanks TowPro. We were hoping for a little better ride with Michelin’s, at least on the front.
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10-09-2019, 05:28 AM
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#8
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Senior Member
Join Date: Nov 2016
Posts: 918
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When choosing a shop to do the wheel alignment , be ure to find a place that does 4 wheel alignment.
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10-09-2019, 07:37 AM
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#9
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Senior Member
Join Date: Aug 2017
Location: Marysville, Ohio
Posts: 1,768
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I replaced the front tires on mine with the Michelin Agilis Cross Climate at 30,000miles. They were not worn out but I was looking for a better ride. The improvement was significant enough that I went ahead and replaced the rear tires as well. Also I weighed the coach on a Cat scale and adjusted the tire pressures according to the Michelin pressure chart.
__________________
2008 Dynaquest 340xl
Bill and Carol
Retired mechanic
US Army Veteran 🇺🇸
Previous coach 2017 Isata 3RW
Also,3 Diesel pushers, 1Bvan, 2 class Cs
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10-09-2019, 10:30 AM
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#10
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Junior Member
Join Date: Aug 2018
Posts: 11
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Quote:
Originally Posted by Bill Davis
I replaced the front tires on mine with the Michelin Agilis Cross Climate at 30,000miles. They were not worn out but I was looking for a better ride. The improvement was significant enough that I went ahead and replaced the rear tires as well. Also I weighed the coach on a Cat scale and adjusted the tire pressures according to the Michelin pressure chart.
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Good to know. Thanks. While the coach has handled well, the ride is a bit jarring and loud on some of the disgraceful roads in the US, so we’re hoping new Michelins will help. Given the comments from folks here, I think we’re going to get two new on the front now and then the other four later - maybe in February when there is sometimes a sale locally for buy two/get two.
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10-09-2019, 10:39 AM
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#11
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Senior Member
Join Date: Nov 2016
Posts: 880
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Quote:
Originally Posted by FFred
When choosing a shop to do the wheel alignment , be ure to find a place that does 4 wheel alignment.
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I'm curious why to pay extra for a 4 wheel alignment when there are no adjustments on the rear axle?
__________________
2017 Isata 3 24FW
2004 Jeep Wrangler
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10-09-2019, 11:21 AM
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#12
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Senior Member
Join Date: Aug 2017
Location: St. Helena, CA
Posts: 186
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We took ours to Smothers Mercedes in Santa Rosa and they installed adjustable camber bolts. We had the same bad wear as yours. We rotated the front tires to the inside rear and put the better rears on the front then Mercedes did the special alignment. They said they see this wear often. Now the rig drives much better.
Still have hard Contentals though. Will replace with Michelin’s this coming spring.
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10-09-2019, 11:48 AM
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#13
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Junior Member
Join Date: Aug 2018
Posts: 11
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Quote:
Originally Posted by Dbrote
We took ours to Smothers Mercedes in Santa Rosa and they installed adjustable camber bolts. We had the same bad wear as yours. We rotated the front tires to the inside rear and put the better rears on the front then Mercedes did the special alignment. They said they see this wear often. Now the rig drives much better.
Still have hard Contentals though. Will replace with Michelin’s this coming spring.
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Nice! We’re having the alignment done at Mercedes in Sacramento. Our closest Mercedes dealer in Rocklin can’t do it yet, but said their sister dealership In Sacramento can. They also said the adjustable camber bolts will almost certainly have to be installed. I’m glad to hear that you found even that improves the ride.
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10-09-2019, 12:53 PM
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#14
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Senior Member
Join Date: Sep 2019
Posts: 1,673
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Quote:
Originally Posted by Dbrote
We took ours to Smothers Mercedes in Santa Rosa and they installed adjustable camber bolts. We had the same bad wear as yours. We rotated the front tires to the inside rear and put the better rears on the front then Mercedes did the special alignment. They said they see this wear often. Now the rig drives much better.
Still have hard Contentals though. Will replace with Michelin’s this coming spring.
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does Mercedes do these camber bolts under warranty?
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10-09-2019, 03:58 PM
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#15
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Senior Member
Join Date: Aug 2017
Location: St. Helena, CA
Posts: 186
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I don’t think so. They are needed to correct the camber due to the weight of the motor home. We are all running at or just above maximum weight. It cost me about $350.00 but well worth it. As stated above not every Mercedes dealer can do it.
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10-10-2019, 06:42 AM
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#16
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Senior Member
Join Date: Nov 2016
Posts: 918
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"I'm curious why to pay extra for a 4 wheel alignment when there are no adjustments on the rear axle"
The rear wheels are only used to be sure the front wheels are pointing to the vehicle front and centered.
Some shops do not have machines that can make this check,they just hope the front is straight.
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10-10-2019, 08:03 AM
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#17
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Senior Member
Join Date: Aug 2017
Location: Marysville, Ohio
Posts: 1,768
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Very few modern alignment machines will do a two wheel alignment. They use the rear sensors to make sure the vehicle is tracking straight and to help with aligning the steering wheel.
__________________
2008 Dynaquest 340xl
Bill and Carol
Retired mechanic
US Army Veteran 🇺🇸
Previous coach 2017 Isata 3RW
Also,3 Diesel pushers, 1Bvan, 2 class Cs
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10-10-2019, 11:31 AM
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#18
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Junior Member
Join Date: Aug 2018
Posts: 11
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Thank you all for the good information. We’re getting two new front Michelin’s now, with Mercedes doing the alignment right after (including camber bolts that are not covered under warranty). We’ll get the four rear tires replaced in a few months since the ones on there are still in great shape. Again, thanks so much. Always impressed with the depth of knowledge and willingness to help by folks on this forum.
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