How much DEF do you add to BlueTec
My '12 ML350 BT has 4100 mi and the ad blue fluid light came on. I was out of town and found a MB dealer and bought a case which is four bottles of 1/2 gal each about $39 total. Checked the owners manual which tells you nothing about adding the stuff nor does the manual give any technical information regarding the amount of DEF it holds.
How much DEF does it hold and how do you tell when it's full? Apparently the dealer has to reset the dash warning! Any hints from the board is appreciated. |
Originally Posted by Jim Brady
(Post 5126816)
My '12 ML350 BT has 4100 mi and the ad blue fluid light came on..
Originally Posted by Jim Brady
(Post 5126816)
I was out of town and found a MB dealer and bought a case which is four bottles of 1/2 gal each about $39 total. Checked the owners manual which tells you nothing about adding the stuff nor does the manual give any technical information regarding the amount of DEF it holds.
Originally Posted by Jim Brady
(Post 5126816)
How much DEF does it hold and how do you tell when it's full? Apparently the dealer has to reset the dash warning! Any hints from the board is appreciated.
To sum up my opinion....the dealer should address this problem at no charge.Assuming they do I'd try to return the bottles you bought (except,perhaps,for one that you'd "covert" as described above).And for future reference I don't *think* the dealer has to reset...I think the computer knows when the tank's been refilled but I can't swear to that (IIRC it varies from maker to maker).Also,in future,don't buy DEF from a Mercedes (or BMW) dealer.Way too expensive.VW dealers sell it pretty cheaply (including the special blue-topped bottles) and other places sell it cheaper still.DEF is DEF....you don't have to worry about brand names. |
DEF
Originally Posted by Jim Brady
(Post 5126816)
My '12 ML350 BT has 4100 mi and the ad blue fluid light came on. I was out of town and found a MB dealer and bought a case which is four bottles of 1/2 gal each about $39 total. Checked the owners manual which tells you nothing about adding the stuff nor does the manual give any technical information regarding the amount of DEF it holds.
How much DEF does it hold and how do you tell when it's full? Apparently the dealer has to reset the dash warning! Any hints from the board is appreciated. |
Thanks for the info. Back to the dealer this week for the system check.
But back to one of my questions, how do you know when the system is full? |
Mine came on at 5k. I got it back from the dealer yesterday and there is a software fix that corrects this problem. The software fix just came out this week. According to the owners manual a tankful should last about 13k. Since the oil is changed at 10k you are fine. AdBlue is included with the maintenance plan so you should never have to shell out cash for it.
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Originally Posted by Jim Brady
(Post 5127475)
But back to one of my questions, how do you know when the system is full?
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Originally Posted by katiesdad7
(Post 5127547)
AdBlue is included with the maintenance plan so you should never have to shell out cash for it.
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Note that the 2012 ML uses a very different filler system than the E-Class or older W/X164 where the AdBlue tank was in the spare tire well. For the 166, the AdBlue filler cap is located behind the fuel door and a regular nozzle should work fine to fill it. The dealership's bulk AdBlue system uses a nozzle that is nearly identical to a typical gas pump nozzle.
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Just be careful. That stuff is corrosive. If you spill any on the body paint, rinse it off quickly.
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Originally Posted by Shrdlu
(Post 5127859)
Just be careful. That stuff is corrosive. If you spill any on the body paint, rinse it off quickly.
Good advice. The factory MB DEF comes in a special 1/2 gal container that screws into the adblue port and should be safe to add. After I figured out how the container has to pushed to release the DEF fluid it's pretty simple. I did find some white crystals on the paint work and filler door where obviously some dripped out. Thanks to all who contributed to my questions as it appears that there is a software fix and I suspect many dealers who maybe unaware of and may want to charge you to add the DEF like the MB dealer in San Diego did to me. |
Originally Posted by katiesdad7
(Post 5127547)
AdBlue is included with the maintenance plan so you should never have to shell out cash for it.
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Sam's Club and Walmart sell DEF. There are lots of web pages with sources. DEF is everywhere.
Wayne |
I made an appt for my 10000 mile service and wanting to avoid a high bill stopped at Advance auto parts & picked up 2x 2.5 gal Blu DEF @$13
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The AdBlue warning came on this weekend at approx 7K km. I went to the dealer today and they performed a software update and topped up my vehicle. They also updated the software related to the hesitation/bucking. All of this covered by the warranty.
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Replacing DEF and how?
I have a 2014 e350 Bluetec. Warning light came on for the DEF. I want to get one of those big jugs and replace. How should I replace this? I saw a youtube where he used one of those smaller containers with the adapter but is it possible to just use a funnel?
What's the best way to replace the DEF? Also can I use DEF and not AdBlue? |
Jeeez. Just get a funnel, a clean funnel and fill it up til it won't take anymore. Done. Not high tech in the least. This is like 'how do I fill up my washer reservior?' type question.
Go to Walmart and buy it by the case. I've a 2014 with 65K on it and never had a low light come on for DEF. I get the car serviced per the manual every 10K, which in my case is way too often. |
++:nix:
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Yes, it is easy as that. Locate the DEF cap, unscrew it - insert a funnel - pour in DEF until you can see fluid below the end of the funnel (pour slowly) - reinsert DEF cap - You're done. You don't need any special tubes or filler gadgets. If you are worried that you might overfill, just add a gallon every 7500 miles (or, whenever the instrument panel message tells you that the level is low). The whole procedure should take you 10 minutes - really.
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I buy one 2.5 gallon box at a time because that is good for 5K miles and, depending on how much you drive, the stuff goes bad over time. If it were not so easy to refill I'd probably put in two boxes.
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This is a 4 year old thread friend...
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Originally Posted by mike919
(Post 8836981)
This is a 4 year old thread friend...
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