Reply
 
Thread Tools Display Modes
Old 03-18-2016, 12:25 PM   #31
Senior Member
 
BandJCarm's Avatar
 
Join Date: Jun 2013
Location: Between Pickles Gap and Toad Suck, AR
Posts: 3,307
Having a diesel TV, I can tell you that DEF is sorta like milk. It is dated. The date is in code on the box/can/bottle, but it's there. As I was told, you don't buy new milk at the store and come home and pour it into the old milk container. Same with DEF.

However, in my pea brain, if you are actually driving the vehicle a lot, or even normally, you're going to go through so much of it that it probably isn't going to matter when you add. IF you were to let one batch sit for six months, then no, I wouldn't add new to old then. But normally, I don't see any problem. Heck, this stuff is nothing more than Urea and water, anyway!
__________________

__________________
BandJCarm is online now   Reply With Quote
Old 03-20-2016, 02:33 PM   #32
Senior Member
 
hkreck's Avatar
 
Join Date: Apr 2012
Location: Iowa
Posts: 1,190
I finally got out to check the reading on the panel for DEF but the reading doesn't come up on my 2011 after the three pushes on the M button. I usually refill it after 1000 miles, that's what the manual states.
__________________

__________________
Henry & Tena
2013 Solera 24S
The Great Escape
hkreck is online now   Reply With Quote
Old 03-21-2016, 11:20 PM   #33
Senior Member
 
MNtraveler's Avatar
 
Join Date: Oct 2015
Posts: 1,702
Quote:
Originally Posted by hkreck View Post
I finally got out to check the reading on the panel for DEF but the reading doesn't come up on my 2011 after the three pushes on the M button. I usually refill it after 1000 miles, that's what the manual states.

Just checked the manual again on this given all the comments and didn't see anything about refilling or topping off other than adding at least 1.5 gal. if the low indicator lights up. But it doesn't say NOT to top off either. Nothing about a DEF level indicator on the dash screen.

DEF will freeze but the MBS has a DEF pre-heating system which allows operation at low temperatures. (P. 325) (It also has a diesel fuel pre-heating system that "improves flow properties of the diesel by approximately 46ēF.)(p.
324)

If you add DEF when it is freezing out, you need to restart the engine after filling. If DEF is added and allowed to freeze, it can take up to 60 mins. to thaw and register the new volume and "during this time the engine may only be operated in neutral." (P. 148) I assume this if you run out before refilling.


Land of 10,000 Lakes
2016 Forester MBS 2401R
__________________
2016 Forester 2401R
MNtraveler is offline   Reply With Quote
Old 03-22-2016, 12:18 PM   #34
Senior Member
 
bob dirt's Avatar
 
Join Date: Jan 2016
Location: Phoenix, Arizona
Posts: 293
Quote:
Originally Posted by hkreck View Post
I finally got out to check the reading on the panel for DEF but the reading doesn't come up on my 2011 after the three pushes on the M button. I usually refill it after 1000 miles, that's what the manual states.
did you have the key in the second position?
__________________
2016 Forester 2401WS MBS
Life is short...eat the cookie
bob dirt is offline   Reply With Quote
Old 03-22-2016, 02:37 PM   #35
Senior Member
 
MNtraveler's Avatar
 
Join Date: Oct 2015
Posts: 1,702
Monitoring DEF consumption

Quote:
Originally Posted by bob dirt View Post
Turn the ignition on and press the "M" 3 times. This is what you'll see...

Mine cycles to:

1. Mileage to oil change (with wrench indicator).

2. Actual mileage plus oil level indicator. It reads _ _._ but after a short wait it just says "ok".

3. Actual mileage + 48.7. Not sure what that is - it may be a trip odometer or mileage since last fuel fill. That is the same as the "normal" screen.



Land of 10,000 Lakes
2016 Forester MBS 2401R
__________________
2016 Forester 2401R
MNtraveler is offline   Reply With Quote
Old 03-22-2016, 04:56 PM   #36
Junior Member
 
Join Date: Mar 2016
Posts: 26
Question...What is DEF? I pick up my 2401W in a week or so and I'd like to know what that is.
__________________
captdanerie is offline   Reply With Quote
Old 03-22-2016, 05:03 PM   #37
Senior Member
 
Mikegjax's Avatar
 
Join Date: Aug 2013
Location: Orange Park Fl.
Posts: 1,327
Quote:
Originally Posted by captdanerie View Post
Question...What is DEF? I pick up my 2401W in a week or so and I'd like to know what that is.
DEF, Diesel Exhaust Fluid. You have a tank under the hood (3.2 gal). I suggest you download a copy of the MB Sprinter owners manual for your year.
The manual has all the info. and is also something you might want to read before your Sprinter arrives. Plenty of good info. in the book. Here is a link so you can get the manual.
Owner Manuals | Mercedes-Benz Vans
__________________
2014 Solera 24R
USN Retired
Mikegjax is offline   Reply With Quote
Old 03-22-2016, 05:23 PM   #38
Junior Member
 
Join Date: Mar 2016
Posts: 26
Thanks so much Mikegjax! downloading now. Our model is 2016.
__________________
captdanerie is offline   Reply With Quote
Old 03-23-2016, 12:07 PM   #39
Senior Member
 
MNtraveler's Avatar
 
Join Date: Oct 2015
Posts: 1,702
Quote:
Originally Posted by captdanerie View Post
Thanks so much Mikegjax! downloading now. Our model is 2016.
Use the search feature on this forum and you will find other posts about it. It's not a huge concern at all but you should know all about it, and you should NOT run out. Learn about the re-start countdown warnings and about the starting lock-out if you ever run out so you will be prepared to handle it correctly.
__________________
2016 Forester 2401R
MNtraveler is offline   Reply With Quote
Old 11-23-2016, 12:46 AM   #40
Member
 
Join Date: Jan 2016
Location: Johnston, IA
Posts: 36
Just adding more information to the list. Our 2015 Sprinter 3500 chassis (3.0 V-6) just asked for the DEF level to be checked yesterday with 9359 miles on the odometer. I added 2.5 gallons at the next fill up. The check light did not turn off immediately, but did turn off after a minute or so. This is the 1st time I have had to address the DEF fluid. Ours is a Prism 2150LE and my understanding is that it should have around a 3 gallon reservoir. Is that normal consumption? From what I have read, it seems that it lasted a long time. I am getting around 12 MPG if that factors in. What's everyone's thoughts?
__________________

__________________
Matt Smith
2016 Coachmen Prism 2150LE
Johnston, Iowa
capav8r is offline   Reply With Quote
Reply

Thread Tools
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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:31 PM.