Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-16-2022, 08:22 PM   #1
2 Rivet Member
 
2015 Interstate Grand Tour
Ocala , Florida
Join Date: Aug 2022
Posts: 31
Dang it….Check engine code P20BD

“Redundant Heater B Control Circuit / Open”
Something to do with heating the DEF in cold weather.
From what I gather online it’s either a $300 repair or $3000!!!
We live in a warm climate and won’t be driving this in cold weather, does anyone know if we can continue to drive the van for a bit before getting it fixed or are we likely to cause even more damage to some other component / system?
KatieZ is offline   Reply With Quote
Old 09-16-2022, 09:18 PM   #2
Rivet Master
 
Boxster1971's Avatar
 
2013 Interstate Coach
Fulton , Maryland
Join Date: May 2010
Posts: 3,644
Quote:
Originally Posted by KatieZ View Post
“Redundant Heater B Control Circuit / Open”
Something to do with heating the DEF in cold weather.
From what I gather online it’s either a $300 repair or $3000!!!
We live in a warm climate and won’t be driving this in cold weather, does anyone know if we can continue to drive the van for a bit before getting it fixed or are we likely to cause even more damage to some other component / system?
I had my DEF heater fail in 2018. It happened in the summer and kept driving it until I had it repaired in later September, before winter here in Maryland. The cost was $1,900.
__________________
- - Mike
--------------------------
2013 Airstream Interstate Lounge EXT
Boxster1971 is offline   Reply With Quote
Old 09-16-2022, 09:35 PM   #3
Rivet Puller
 
SeeMore's Avatar
 
2003 28' Safari S/O
Atlanta Burbs , Georgia
Join Date: Jul 2010
Posts: 1,879
Images: 3
If your check engine light is on with a fault code related to the DEF heater, you should to get it fixed as soon as possible. Otherwise, when you ignore the check engine light, your Mercedes may go into limp mode, or possibly, you may start to get a warning message on the dashboard stating " x starts remaining," after which point you will no longer be able to start the engine and require a tow. It all depends on the specific software release you are running. I doubt you will "cause more damage" as the software is designed to interrupt your continued use.
__________________
"Good judgement comes from experience. Experience comes from bad judgement."

Sir Tristan
Air #48582, S/SO #003, WBCCI #4584
SeeMore is offline   Reply With Quote
Old 09-16-2022, 10:02 PM   #4
2 Rivet Member
 
2015 Interstate Grand Tour
Ocala , Florida
Join Date: Aug 2022
Posts: 31
Wow….need to find a good shop (Not a $$$$$ dealer) and get this looked at
KatieZ is offline   Reply With Quote
Old 09-17-2022, 11:42 AM   #5
Living Riveted since 2013
 
Rocinante's Avatar

 
2016 Interstate Lounge Ext
Green Cove Springs , Florida
Join Date: Dec 2013
Posts: 7,931
Blog Entries: 1
Try a Freightliner shop that handles Sprinters. Not all do, but if you find one that does, they are less expensive than a MB dealer.
__________________
Rocinante Piccolo is our new-to-us 2016 Interstate Lounge 3500 EXT
(Named for John Steinbeck's camper from "Travels With Charley")


Rocinante is offline   Reply With Quote
Old 09-17-2022, 04:42 PM   #6
2 Rivet Member
 
2007 25' International CCD FB
Glen Allen , Virginia
Join Date: Oct 2020
Posts: 31
LAST YEAR, I had the Def heater CEL on my 2015 GMC 2500 110,000 miles.
We live in Virginia, its warm and didn't feel we needed the heater and I considered
just living with it.

I went ahead and took to the local GMC dealer for the service, they explained the heater is part of the DEF tank and the service could be about $1500.

Good news ....GMC explained that the repair was covered under a class action settlement.
The settlement covered the repair for 10 years and 125K miles..... PLUS
they filled the new DEF tank.

That day, The gods were shining on mus.

Good luck with your CEL service
dabhunter is offline   Reply With Quote
Old 09-18-2022, 03:48 PM   #7
Rivet Master
 
Boxster1971's Avatar
 
2013 Interstate Coach
Fulton , Maryland
Join Date: May 2010
Posts: 3,644
Quote:
Originally Posted by KatieZ View Post
Wow….need to find a good shop (Not a $$$$$ dealer) and get this looked at
You said you have a 2015 Interstate, probably a 2014 Sprinter. How many miles do you have on your van? Have you had the AEM preformed on your van?

The DEF system is covered by an extended emissions warranty. You should check with a dealer.

When mine failed I was outside the warranty so I had to pay for it. But after getting the AEM done I got a check for $3,590 and a new 4 year/48,000 mile warranty.
__________________
- - Mike
--------------------------
2013 Airstream Interstate Lounge EXT
Boxster1971 is offline   Reply With Quote
Old 09-18-2022, 04:00 PM   #8
Rivet Master
 
ITSNO60's Avatar
 
Currently Looking...
Tucson , AZ
Join Date: May 2017
Posts: 2,066
The DEF heater and most other parts of the DEF tank require a new tank to be installed on the Sprinter. Unfortunately I don't think the heater is covered by the extended warranty https://bluetecupdate.mbvans.com/con...Disclosure.pdf but I could be wrong, I remember reading where some folks were able to fight MB and got them to do it. Also, the AEM requires the system to be in working order with no DTCs when you take it in for the work but some have argued their way out of that one as well. Let us know what they say.
__________________
Brian
ITSNO60 is offline   Reply With Quote
Old 09-19-2022, 06:19 PM   #9
2 Rivet Member
 
2015 Interstate Grand Tour
Ocala , Florida
Join Date: Aug 2022
Posts: 31
We are getting our van into an MB dealer this Wednesday! Just in the nick of time. They said it would take 2 to 3 days to complete the AEM and we are also getting the rear wheel sensor recall taken care of. Hope they will perform the work with this code!
I did not however make them aware of our code that is stored
KatieZ is offline   Reply With Quote
Old 09-19-2022, 06:31 PM   #10
Rivet Master
 
ITSNO60's Avatar
 
Currently Looking...
Tucson , AZ
Join Date: May 2017
Posts: 2,066
Mine goes in tomorrow morning. Now we can compare notes
__________________
Brian
ITSNO60 is offline   Reply With Quote
Old 09-24-2022, 08:09 PM   #11
Rivet Master
 
ITSNO60's Avatar
 
Currently Looking...
Tucson , AZ
Join Date: May 2017
Posts: 2,066
Got mine back yesterday. Transmission is shifting differently but I was prepared for that as I read that it will need some time to adapt as the TCM & ECM were both disconnected and the ECM replaced. Going on a 200 mile test drive tomorrow to get pizza.
__________________
Brian
ITSNO60 is offline   Reply With Quote
Old 09-25-2022, 07:25 AM   #12
2 Rivet Member
 
2015 Interstate Grand Tour
Ocala , Florida
Join Date: Aug 2022
Posts: 31
Hope you saw my latest post……$1300 to remove the step!
KatieZ 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
Well it finally happened...DANG IT!!!!! THEPILL Our Community 9 11-06-2010 12:54 AM
Dang this part of the thread seems dead THEPILL All Argosy Trailers 7 01-10-2010 04:21 PM
dang it! lost a hubcap flitzwhopper General Repair Forum 10 07-11-2009 08:25 PM
Check , Check and Re-Check a new refer saga. thenewkid64 Refrigerators 13 06-24-2002 10:54 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 10:48 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.