Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-17-2015, 12:10 PM   #1
2 Rivet Member
 
2014 Interstate Ext. Coach
Miami Beach , Florida
Join Date: Mar 2014
Posts: 47
Optimal Tire pressure for 2014 Interstate?

Can someone let me know the optimal PSI for the two front and four back tires on my interstate? My RV dealer and Mercedes shop have said different numbers.


Sent from my iPhone using Airstream Forums
__________________

__________________
ATE123 is offline   Reply With Quote
Old 06-17-2015, 12:52 PM   #2
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,294
Quote:
Originally Posted by ATE123 View Post
Can someone let me know the optimal PSI for the two front and four back tires on my interstate? My RV dealer and Mercedes shop have said different numbers.
61 psi all around is what the Sprinter owner's manual says, and that's what I use on mine.
__________________

__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is offline   Reply With Quote
Old 06-17-2015, 12:55 PM   #3
2 Rivet Member
 
2014 Interstate Ext. Coach
Miami Beach , Florida
Join Date: Mar 2014
Posts: 47
Thanks- that is what my RV place said, but my interstate is at Mercedes and they wanted to do 47 in front and 70 in back!


Sent from my iPhone using Airstream Forums
__________________
ATE123 is offline   Reply With Quote
Old 06-17-2015, 01:30 PM   #4
Rivet Master
 
UKDUDE's Avatar
 
2014 Interstate Ext. Coach
Sedona , Arizona
Join Date: Jul 2008
Posts: 1,037
Optimal Tire pressure for 2014 Interstate?

If you're a nit-picker, the correct way to set your tire pressures is by weighing each of the axles when you're fully loaded, and then refer to the load/pressure tables from your tire manufacturer.
Here's a link to a write-up with some detailed instructions:
http://www.thefitrv.com/rv-tips/how-...re-in-your-rv/
But I think most of us stick to the Airstream recommendation of 61 all round. And of course that is a generalization for everyone.


Sent from my iPad using Airstream Forums
__________________
UKDUDE is offline   Reply With Quote
Old 06-17-2015, 05:24 PM   #5
Rivet Master
 
Boxster1971's Avatar

 
2013 Interstate Coach
Fulton , Maryland
Join Date: May 2010
Posts: 2,256
Quote:
Originally Posted by ATE123 View Post
Thanks- that is what my RV place said, but my interstate is at Mercedes and they wanted to do 47 in front and 70 in back!


Sent from my iPhone using Airstream Forums

That dealer is giving you the numbers for a 4-wheel 2500 Sprinter. Check your MB Owners Manual for 3500 Sprinter with GCWR of 11,030 and heavy duty axles front and rear it says 61 psi all around. That is where Airstream gets 61 psi number for the Interstate. UKDUDE has the most correct answer, which is what I've done. Had my van weighed and after consulting the Michelin tire chart It said I could run at 50 psi with my weight. But I set mine to 55 psi all around for a little margin. It does ride smoother than when I had the tires set to 61 psi. After 20,000+ miles the tires are wearing properly.


- - Mike
2013 Lounge EXT on 2012 Sprinter
__________________
- - Mike
--------------------------
2013 Airstream Interstate Lounge EXT
Boxster1971 is offline   Reply With Quote
Old 06-17-2015, 06:58 PM   #6
2 Rivet Member
 
2014 Interstate Ext. Coach
Miami Beach , Florida
Join Date: Mar 2014
Posts: 47
Thanks, Mike. Good feedback all around.


Sent from my iPhone using Airstream Forums
__________________
ATE123 is offline   Reply With Quote
Old 06-20-2015, 08:40 PM   #7
2 Rivet Member
 
2014 25' International
2010 22' Interstate
Carol Stream , Illinois
Join Date: Dec 2014
Posts: 37
I've been using the 61lbs for all tires. For safety, comfort and tire ware for the Interstate 3500. Mercedes has their mechanics put in 61 all around. FYI
__________________
John Millner is offline   Reply With Quote
Old 06-23-2015, 04:56 PM   #8
3 Rivet Member
 
2015 Interstate Ext. Coach
Chicago , Illinois
Join Date: Mar 2015
Posts: 187
btw ... on a 2015 AI Grand Tour : does anyone know if there's a low tire pressure warning on the instrument panel? My manual says there should be one, but I have followed the instructions and fooled around a lot with the buttons on the steering wheel, and can't come up with one.
__________________
Marks71 is offline   Reply With Quote
Old 06-23-2015, 06:57 PM   #9
Rivet Master
 
UKDUDE's Avatar
 
2014 Interstate Ext. Coach
Sedona , Arizona
Join Date: Jul 2008
Posts: 1,037
Quote:
Originally Posted by Marks71 View Post
btw ... on a 2015 AI Grand Tour : does anyone know if there's a low tire pressure warning on the instrument panel? My manual says there should be one, but I have followed the instructions and fooled around a lot with the buttons on the steering wheel, and can't come up with one.
It's a Mercedes option not installed on the Sprinters upfitted by Airstream.
__________________
UKDUDE is offline   Reply With Quote
Old 06-23-2015, 08:19 PM   #10
Rivet Master
 
Boxster1971's Avatar

 
2013 Interstate Coach
Fulton , Maryland
Join Date: May 2010
Posts: 2,256
Quote:
Originally Posted by UKDUDE View Post
It's a Mercedes option not installed on the Sprinters upfitted by Airstream.

No - Mercedes dos not offer tire pressure monitor system on 3500 Sprinters because they are not required by U.S. DOT.

"FMVSS No. 138 requires new passenger cars, multi-purpose passenger vehicles, trucks, and buses with a gross vehicle weight rating (GVWR) of 4,536 kg (10,000 pounds) or less, except those with dual wheels on an axle, to be equipped with a TPMS to alert the driver when one or more of the vehicle's tires, up to a total of all four tires, is significantly under-inflated."

http://www.nhtsa.gov/cars/rules/ruli...nalrule.6.html


- - Mike
2013 Interstate Lounge EXT on 2012 Sprinter
__________________
- - Mike
--------------------------
2013 Airstream Interstate Lounge EXT
Boxster1971 is offline   Reply With Quote
Old 06-23-2015, 08:38 PM   #11
3 Rivet Member
 
2015 Interstate Ext. Coach
Chicago , Illinois
Join Date: Mar 2015
Posts: 187
Ok thanks
__________________
Marks71 is offline   Reply With Quote
Old 06-23-2015, 09:44 PM   #12
Rivet Master
 
UKDUDE's Avatar
 
2014 Interstate Ext. Coach
Sedona , Arizona
Join Date: Jul 2008
Posts: 1,037
Quote:
Originally Posted by Boxster1971 View Post
No - Mercedes dos not offer tire pressure monitor system on 3500 Sprinters because they are not required by U.S. DOT.

"FMVSS No. 138 requires new passenger cars, multi-purpose passenger vehicles, trucks, and buses with a gross vehicle weight rating (GVWR) of 4,536 kg (10,000 pounds) or less, except those with dual wheels on an axle, to be equipped with a TPMS to alert the driver when one or more of the vehicle's tires, up to a total of all four tires, is significantly under-inflated."

Federal Motor Vehicle Safety Standards; TPMS; Controls and Displays. Final Rule.


- - Mike
2013 Interstate Lounge EXT on 2012 Sprinter
You're right - and I stand corrected!
__________________
UKDUDE is offline   Reply With Quote
Old 06-24-2015, 08:35 AM   #13
3 Rivet Member
 
2013 Interstate Coach
Flemington , New Jersey
Join Date: Sep 2013
Posts: 162
Well.....there is a TPMS system in the Interstate.

Its called ESP.

When one of the tires pressure is low enough (or higher - after extended downhill braking for example) and consequently one tire has a different diameter than the rest, the ESP senses it and throws the 'ESP - Visit Workshop' warning and sometimes even a check engine light followed by reduced power.

Find the offending tire (usually the last one you check), air up, use the scan gauge to reset the check engine light if need be and be on your merry way.
__________________
Mario
2013 Interstate
2014 Little Guy 5x10 Silver Shadow
Tiato is offline   Reply With Quote
Old 06-24-2015, 08:39 AM   #14
Rivet Master
 
73shark's Avatar
 
2011 Interstate Coach
Overland Park , Kansas
Join Date: Aug 2011
Posts: 2,748
Any idea on what the pressure differential is before it will throw a code?
__________________

__________________
Glass half full or half empty to an engineer is the glass is twice as big as it needs to be.

PM me for sale info on my 2011. SOLD!
Upfitted Transit 350 sitting in driveway.
73shark is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Installing Tire Pressure Monitor System in Airsream Interstate jerhofer Sprinter and B-van Forum 18 02-15-2015 12:18 PM
pump configuration for optimal pressure on city water 72streamline Fresh Water Systems 5 02-18-2014 02:58 AM
Optimal position for black and gray tank when dumping Woosch Waste Systems, Tanks & Totes 2 10-26-2012 09:23 PM
Tire Pressure Gauges- Pressure Varies! Ray Eklund Tires 14 07-06-2008 09:34 AM
Canadian Tire's $129 Tire Pressure Monitoring System SilverCottage Tires 9 10-30-2007 08:55 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:36 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.