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Old 09-28-2019, 07:49 AM   #1
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2019 MBUX and tire size

Just learning that increasing tire diameter can cause the MBUX driver assist and cruise control to fail. Anyone have any experience with this or know if the software Ben overridden?
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Old 09-28-2019, 08:24 AM   #2
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I seem to recall seeing something on this from Rob at Van Compass. I’ll look for it, but suggest you contact Mark or Rob.

Edit: Found a recent VC Instagram post with some info. It says they are doing the research to see what the largest tire size is that doesn’t affect the adaptive cruise is, also that 285/70/17’s are working.
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Old 09-28-2019, 09:42 AM   #3
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Thanks Fitz, he’s who I am working with and also trying to see if MB can deal with software changes. I’ll post the results.
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Old 09-28-2019, 10:49 PM   #4
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I’d say maybe 1 2019 Sportsmobile owner on here...and if you have one in your hands your in a small field

You may be interested in finding first hand info here

https://sprinter-source.com/forum/sh...ad.php?t=77197
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Old 09-30-2019, 11:41 AM   #5
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Thanks SCTN..... apparantly waiting to be shipped from SC West. Hope to have it at my upfitter in early November or late October. I just noted this from the Sprinter forum, but am questioning it and will be attempting to confirm:

"We just got the adaptive cruise control to work with 285/70/17 tires ~ 32.7" diameter. Can't say for sure if a true 33 will work."
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Old Yesterday, 08:08 AM   #6
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Just went to Expo East this weekend and saw several Sprinters with 33" tires, but they were rubbing on the wheel wells. They looked good though.
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Old Today, 04:38 AM   #7
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The understanding is some trimming is required with 33’s, but the more important issue on the 2019s is the loss of a driver assist in the MBUX system, which is apparently very nice. As I understand it a number of tire sizes are being tested by upfitters to address this and some dealers are looking at possible computer recalibrations. I hope so, I take my delivery on my 2019 144’ high roof at the end of the month. I am also hoping for some bumper systems that will work with the park assist.
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Old Today, 07:13 AM   #8
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FlaJoe...who is doing your build?
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Old Today, 07:25 AM   #9
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Momentum- Hoka Hey in Black Blue:

2019 144' High Roof 4x4
4.18 gear, all power, leatherette, MBUX, etc
Roambuilt Shadow Awning and rack with cross bar for yaks/boards
Roambuilt 16' with tire size to be determined
VC Stage 6 and disconnect.
720 amp Mastervolt system with EasyView 5; and Zamp 400-500, and Blue Sea custom panels
Agile 28 gal spare fuel tank in spare tire well
Bumpers up in the air and depending on impact on sensors/park assist- would love 33's but likely 32. Box, tire, and bike rack on rear.
10 or 12k warn winch
Flarespace
Custom Walnut cabinets, framing, seating, Sileather, 2tec2 flooring, and laguns - custom fly rod layouts and drawers
D5 furnace and Kingtec DC AC and MaxxAir vent
Microwave, 2 burner, Isotherm Dr-85
Alpine, Garmin, CB, Pedbox
Viair compressor
Rino liner rails and hood
Skid plates

I will cry when I take the hit on a sale, but hopefully that is when it is old and grey.
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Old Today, 11:25 AM   #10
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Sure you didn’t forget anything? Ha! Sounds like it’s going to be an awesome rig, can’t wait to see how it turns out...and what you squeeze on those 16’s...I’m staying stock hoop size as well.
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