Adblue Issues - Page 2 - Mercedes-Benz Forum
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post #11 of 27 (permalink) Old 02-21-2015, 06:20 PM
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There have been a number of reports concerning the failure of the tank heater that keeps the Ad Blue (mostly water) from freezing in cold climates. The fix is to replace the heating unit. If this was the cause in your case, though, I would have expected the failure to throw a diagnostic code.

Last edited by Shrdlu; 02-21-2015 at 06:48 PM.
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post #12 of 27 (permalink) Old 02-21-2015, 06:23 PM
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I had the AdBlue heater go on my GL320....can't remember how much it was to replace but wasn't cheap. Somewhere between $1500-$2k or so


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post #13 of 27 (permalink) Old 02-21-2015, 11:01 PM Thread Starter
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I'm still under warranty, they have changed the entire compute of the car and is still having the same problem, I think it's the temperature/ level sensor since there is plenty of adblue and I am not in freezing conditions, but no diagnostic code. These mechanics rely to heavily on their computers and I don't know if they physically check what is wrong unless the computer says so. i bought this car brand spanking new so I don't have to run in to problems like this, at only 15000 km over 2.5 years this is ridicoulous, the car itself runs great but the adblue system is a nuisance, my first and last diesel, maybe my first and last mercedes, but looking at the gle 450 coupe non diesel
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post #14 of 27 (permalink) Old 02-22-2015, 07:34 AM
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Garage
I googled your problem and came up with the info that this has been happening for years now. I'm sure you have done this also and found that it's a common problem with other Mercedes diesels. It's funny how the car companies will act like it's a new problem and will not fix it until after a class action suit is filed while acting like they've never heard of it before because is cheaper for them to act stupid. They act like they don't know that it is a low level sensor and play dumb. I saw this in Honda that has an ignition switch problem and has had the same problem for decades in all of their cars. They act like they don't know the problem when it's common. Honda has had millions of cars recalled since 99 for their ignition issue and it's still an issue that comes out in today's cars and their mechanics have been told to act dumb. So I would take the car to a good mechanic that has his own shop and is not connected to Mercedes and have him look at it. If he can't find a problem then I would have him change out the low level sensor. When companies have a problem with a car that starts costing them a lot of money they have 2 choices. Either recall all of them and fix it, which will cost them $$$ even if they have a fix, or just do nothing and pretend they've never had the problem before. Taking it to a good mechanic out of Mercedes control might get your car fixed a lot quicker.

Sorry for the long rant but Honda just tried pulling their crap on my mother in law when her car would die when she was turning the steering wheel to make a corner, causing her to almost coast off the road in a stalled car. I googled it, found the problem, then sent the sons in to tear Honda a new hole for putting mom's life at risk over a 25 year old known problem.

Anyway you were asking about the gas over diesel and for me I just bought a 2012 ML Bluetec strictly for towing my Casita travel trailer because the diesel has way more torque and gets great mileage even when towing this light 2500lb trailer. I researched gas over diesel for months, looked at all of the different brands and came up with the ML leading the pack for what I need. This isn't my first diesel but it is my first Mercedes Diesel. As far as gas goes, if it's for you, a fully loaded SL made great sense for us. In order to use the Car pool lanes in San Francisco you either need to have 3 people in your car or drive a 2 seater roadster, so we bought the fully loaded 2011 SL for making trips to the city and we love it. Just starting it by pushing the button on the top of the stick shift is the coolest as it can get. So for me, gas is for one kind of enjoyment and diesel is for another
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post #15 of 27 (permalink) Old 02-22-2015, 09:11 AM
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Disabling AdBlue

Hello everyone! There is a device to disable the system BlueTec. Very simply connected, the owner of the vehicle is no longer necessary to add a liquid AddBlue, no need to replace the component to faulty. Who are interested - write, send instructions and give the necessary explanations.
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post #16 of 27 (permalink) Old 02-22-2015, 09:36 AM Thread Starter
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Thanks for the reply

I would love to take it to an Indy shop, but the car is under warranty, I'm not paying anything out of pocket right now, I just hope they can finally fix it , maybe I'll take it to another mb dealership,

If I take it to a Indy dealership will it be covered under warranty? Will it void the warranty?


I'm planning to trade this car by the end of the year unless they can provide me with some kind of extended warranty to keep my piece of mind.

again with only 15000kms these problems are absurd.

Hopefully they resolve this soon.
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post #17 of 27 (permalink) Old 02-26-2015, 07:35 PM Thread Starter
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Got my car back today again, and they said that the nox sensors and the adblue sprayer (forgot the technical term) was faulty so they replaced those parts as well, hopefully this is the last of these problems, will keep you guys updated in regards to this issue (if anyone cares).
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post #18 of 27 (permalink) Old 02-26-2015, 08:13 PM
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Quote:
Originally Posted by Vortecpwr View Post
that's the first I have heard of. must have been a hardware issue where the dealer can't fix it. I don't like any new diesel due to the adblue crap now. If they would let them breathe they would get 10 more mpg, but the tree huggers would yell due to black smoke.
That is total bull. Selective Catalytic Reduction (SCR) technology improves gas mileage. SCR allows the engine to be fully optimized. See e.g., https://www.cumminsfiltration.com/pd...es/MB10033.pdf i.e.,

Quote:
Q. What are the advantages for the fleet in using SCR technology?

A. Cummins 2010 engines will deliver what customers need in these challenging economic times. Cummins 2010 heavy duty engines utilizing SCR will provide substantial fuel economy improvement, up to 5%. SCR catalyst technology allows much greater NOx conversion efficiency, thereby allowing the engine to be fully optimized, which contributes to this fuel economy improvement. Another benefit to the improved fuel consumption is less frequent Diesel Particulate Filter (DPF) cleanout, thereby further reducing costs.
...and, from Mack Trucks:

Quote:
HOW DOES SCR IMPROVE FUEL EFFICIENCY?

SCR affords the opportunity to fine tune engine efficiency, optimizing combustion that directly improves horsepower while significantly improving fuel economy. Additionally by using the available engine-out NOx we can better manage passive exhaust heat temperatures that allow for dramatically reduced Diesel Particulate Filter active regeneration events that consume expensive diesel fuel.

Last edited by Mac; 02-27-2015 at 12:19 PM.
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post #19 of 27 (permalink) Old 02-28-2015, 10:31 AM Thread Starter
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Quote:
Originally Posted by Reed_Lukens View Post
I googled your problem and came up with the info that this has been happening for years now. I'm sure you have done this also and found that it's a common problem with other Mercedes diesels. It's funny how the car companies will act like it's a new problem and will not fix it until after a class action suit is filed while acting like they've never heard of it before because is cheaper for them to act stupid. They act like they don't know that it is a low level sensor and play dumb. I saw this in Honda that has an ignition switch problem and has had the same problem for decades in all of their cars. They act like they don't know the problem when it's common. Honda has had millions of cars recalled since 99 for their ignition issue and it's still an issue that comes out in today's cars and their mechanics have been told to act dumb. So I would take the car to a good mechanic that has his own shop and is not connected to Mercedes and have him look at it. If he can't find a problem then I would have him change out the low level sensor. When companies have a problem with a car that starts costing them a lot of money they have 2 choices. Either recall all of them and fix it, which will cost them $$$ even if they have a fix, or just do nothing and pretend they've never had the problem before. Taking it to a good mechanic out of Mercedes control might get your car fixed a lot quicker.

Sorry for the long rant but Honda just tried pulling their crap on my mother in law when her car would die when she was turning the steering wheel to make a corner, causing her to almost coast off the road in a stalled car. I googled it, found the problem, then sent the sons in to tear Honda a new hole for putting mom's life at risk over a 25 year old known problem.

Anyway you were asking about the gas over diesel and for me I just bought a 2012 ML Bluetec strictly for towing my Casita travel trailer because the diesel has way more torque and gets great mileage even when towing this light 2500lb trailer. I researched gas over diesel for months, looked at all of the different brands and came up with the ML leading the pack for what I need. This isn't my first diesel but it is my first Mercedes Diesel. As far as gas goes, if it's for you, a fully loaded SL made great sense for us. In order to use the Car pool lanes in San Francisco you either need to have 3 people in your car or drive a 2 seater roadster, so we bought the fully loaded 2011 SL for making trips to the city and we love it. Just starting it by pushing the button on the top of the stick shift is the coolest as it can get. So for me, gas is for one kind of enjoyment and diesel is for another
I actually have a 2012 BMW Z4 35is as well, for driving on weekends it is an fun little car, so far I haven't had any problems with it and maintenance is covered free under warranty (extended this package for seven years).
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post #20 of 27 (permalink) Old 02-28-2015, 06:50 PM Thread Starter
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Less than three days after getting my car back, the check engine light is on, took back to the dealer again! When will this nightmare end!
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