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Old 07-17-2019, 10:02 AM   #21
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Yes, I think you need tires.......the 2 front ones

Put on all 6, if you want, but...I would put 2 new good tires on the front, then try it again

Yes, I would hate to pay the price....but, I would put on Michelins.

Balancing tires make them smooth riding......aligning the front end makes them wear longer, and evenly across.

Your tires are thumpy..not smooth tires....may be cupped or may have some separation
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Old 07-18-2019, 04:18 PM   #22
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tear wear and balance

We had to replace the drivers side tyre last fall before before we had the front alignment done. We returned from Colorado and I noticed the passenger side tyre cupping on the passenger side. I had the tyres rotated side to side. After the alignment on the way way home I noticed a bad vibration at 70 mph. When I got home I had the front tyres balanced. I believe the balance job worked because after a 200 mile trip over the weekend the vibration was greatly reduced at 70 mph.
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Old 07-21-2019, 11:28 AM   #23
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Issue Resolved

Thank you everyone for your thoughts and advice. We ended up talking to a semi and big vehicle repair place near us, and he said he couldnít be competitive on tires and to take it to a local Discount Tire which we actually use for our others vehicles and have had great experiences with. I took it in and explained all that had gone on. They put it up on their lift, discovered the front tires were out of balance (had to have happened when Mercedes replaced the brakes), balanced them and in less than an hour our problem was solved. The van drives as smooth as it ever has at interstate speeds, and they did not even charge us. We are in the Indianapolis area and must have the worst Mercedes dealership in the country. They denied responsibility, wanted to solve our problem by selling us $2000 in tires, and told us they were the only game in town that could properly balance tires. Iím just mad now we let them replace all our brakes, because who knows if that was really necessary. Anyway, we are good to go, just wanted to let everyone know the ending to our saga and thank all for taking the time to help.
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Old 07-21-2019, 01:54 PM   #24
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Quote:
Originally Posted by Eligracem View Post
front tires were out of balance (had to have happened when Mercedes replaced the brakes), balanced them and in less than an hour our problem was solved.
I'm glad it was something so simple and obvious. 99% of the time vibration at highway speeds is simply tire balance.

For whatever it's worth, in my 11 years of dealership service experience (the past two at a Mercedes/Sprinter facility) and my entire life of being an automotive enthusiast I can't see how the technician servicing your brakes could've possibly tampered with your wheel weights.

Wheel weights can easily fall off at any time and tire balance can change with tire wear and road impacts. This is why I recommend having your tires balanced with each scheduled service.

This is probably a circumstance of coincidence that results in an "ever-since" situation. Regardless, the small cost of balancing two tires is never enough to upset a customer and lose their trust. It's a situation of customer perception, which in this case is more important than what may or may have not actually occurred during the brake service.
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Old 07-22-2019, 04:14 AM   #25
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So sad.
I have had so many of those kinds of issues, on RV's & Vehicles, that I trust so few service centers

I do my own oil changes, tire rotations, batteriy changes & A/c work, etc

So, it's rare I have to take my vehicle anywhere. I travel 50 miles to get to an alignment shop I trust.
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Old 07-22-2019, 06:42 AM   #26
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So sad.
I have had so many of those kinds of issues, on RV's & Vehicles, that I trust so few service centers

I do my own oil changes, tire rotations, batteriy changes & A/c work, etc

So, it's rare I have to take my vehicle anywhere. I travel 50 miles to get to an alignment shop I trust.
I hear that. We have a few Porsches and we're fortunate to have become good friends with the owner of an independent facility about 30 minutes away. We have complete trust with them. Now I'm a key tosser, so when I drop off the cars they just do what needs to be done and let me know when its ready. I told him not to call me for decisions unless it's time to let the car go. If he left decisions up to me I'd choose a cheaper or aftermarket option which I'd regret later (from experience.) The price doesn't matter as I don't have any other local options and I don't trust anyone else anyway.
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Old 07-23-2019, 04:04 AM   #27
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Mr. Merk: Tht is such a nice relationship to have, it's built on trust, you know he will do his best, and be fair. He knows you will pay
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Old 07-27-2019, 11:41 AM   #28
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Tire replacement and alignment.

As noted previously, I was suffering vibration and severe front tire wear on inside of both tires at about 32K miles (OEM Continental tires).

Today I replaced all 6 tires with Michelin Agilis Cross Climate LT 215/85 R16 and aligned front end at a local truck tire specialist. Initial driving test was very positive, vibration gone.
https://www.moderntiredealer.com/new...ate-on-april-1

From the photo attached, there was a BIG problem with the toe. Camber is still out of spec, and the shop said they could not adjust camber without front end work. I don't have the after market bolts that allow more camber adjustment. Others in the forum have said that a camber near 0 degrees is better than the specified range, so I don't if this is a problem or not.

The front had been aligned around 10K miles ago by a local Mercedes shop. Given the symmetric wear on L & R front tires, and the symmetric toe error indicated below, I wonder if the Mercedes shop blew the alignment and caused the problem.

For those in the Houston metro area, the shop I used (Beasely Tire Service) seems competent and fair. They have outlets in other parts of Texas, too.
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Old 07-29-2019, 06:58 AM   #29
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I note that the alignment sheet you have is for a 2007-2009 Sprinter and your ID says that you have a 2017. Not sure how much, if any, difference there is...
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Old 07-29-2019, 09:18 AM   #30
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Copied and pasted from correspondence between our Sprinter tech and another alignment shop that couldn't get specs for an '18 Sprinter RV:

WITH A RIDE HEIGHT OF 311 MM IN FRONT AND 463 MM IN REAR SPECS ARE:
CAMBER: -0.25 WITH -0.1 TO +0.3 TOLERANCE
CASTER: +3.53 WITH +/-0.3 TOLERANCE
TOE: +0.04

RIDE HEIGHT WILL CHANGE THE SPEC, BUT THAT IS A MIDDLE RANGE AND SHOULD WORK FOR MOST RV'S
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Old 07-29-2019, 06:31 PM   #31
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Interesting that you found a camber spec that is a function of ride height. I think this addresses the issue that may have written about, claiming that 0 is the right camber spec for the Airstream. The heavy Airstream would presumably have a lower ride height, and a different camber spec than the 'standard' (lightly loaded) Sprinter.
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Old 07-30-2019, 06:25 AM   #32
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Quote:
Originally Posted by Titus View Post
Interesting that you found a camber spec that is a function of ride height. I think this addresses the issue that may have written about, claiming that 0 is the right camber spec for the Airstream. The heavy Airstream would presumably have a lower ride height, and a different camber spec than the 'standard' (lightly loaded) Sprinter.
It would be wise to note that this was probably a class C like a Navion or similar. There would be more forward weight as well.
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Old 07-30-2019, 07:11 AM   #33
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Quote:
Originally Posted by Mr. Merk View Post
CAMBER: -0.25 WITH -0.1 TO +0.3 TOLERANCE
Quote:
Originally Posted by Titus View Post
Interesting that you found a camber spec that is a function of ride height. I think this addresses the issue that may have written about, claiming that 0 is the right camber spec for the Airstream. The heavy Airstream would presumably have a lower ride height, and a different camber spec than the 'standard' (lightly loaded) Sprinter.
Quote:
Originally Posted by Mr. Merk View Post
It would be wise to note that this was probably a class C like a Navion or similar. There would be more forward weight as well.
Since the range of "in-spec" cambers reported by Mr. Merk is -0.35 to +0.05 (which is another way of saying -0.25, -0.1 to +0.3), that range includes the 0.0 camber reported by Titus. Looks like you're both right.
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Old 07-30-2019, 04:20 PM   #34
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Originally Posted by Titus View Post
I note that the alignment sheet you have is for a 2007-2009 Sprinter and your ID says that you have a 2017. Not sure how much, if any, difference there is...
My chassis is 2016. I hope the numbers are good for this year also.

Somehow it seems it shouldn't be this hard to get a proper alignment.
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Old 08-03-2019, 06:03 AM   #35
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As Protagonist noted, the tolerances are wide enough to cause an overlap in specs between low and high ride heights. But if one were to just look at the nominal spec I think the ride height variable does address the different specs cited for MB factory setting (high ride height) and the heavily loaded AI (low ride height).
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Old 08-04-2019, 05:15 AM   #36
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Quote:
Originally Posted by Mr. Merk View Post
Copied and pasted from correspondence between our Sprinter tech and another alignment shop that couldn't get specs for an '18 Sprinter RV:

WITH A RIDE HEIGHT OF 311 MM IN FRONT AND 463 MM IN REAR SPECS ARE:
CAMBER: -0.25 WITH -0.1 TO +0.3 TOLERANCE
CASTER: +3.53 WITH +/-0.3 TOLERANCE
TOE: +0.04

RIDE HEIGHT WILL CHANGE THE SPEC, BUT THAT IS A MIDDLE RANGE AND SHOULD WORK FOR MOST RV'S
MR.MERK - Thank you for this good to know for future reference
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