M-Class (W166) Produced 2012-2015

Ablue tank level problems

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Old Aug 2, 2012 | 06:45 PM
  #1  
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2009 ML320 BluTec
Ablue tank level problems

Anyone having an issue with the level in the adblue tank. Had to bring the truck back to the dealer a second time since may for a check ad blue level. I topped off the tank at the end of may. They updated the computer and reset the level indicator the first time.
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Old Aug 2, 2012 | 08:23 PM
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2012 ML 350 BlueTec
There is a software update that is supposed to take care of this issue. I had it done and so far so good.
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Old Aug 2, 2012 | 08:50 PM
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How easy is it to add ad blue?
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Old Aug 2, 2012 | 09:16 PM
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2018 BMW 540d
Originally Posted by hutch300
How easy is it to add ad blue?
Very easy...and much,much cheaper than having the dealer do it.
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Old Aug 2, 2012 | 10:46 PM
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That's good to know.... I have a blutec on order I hope to get it in december
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Old Aug 3, 2012 | 08:19 AM
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2009 ML320 BluTec
They did the software update in may. I guess well see what happens.
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Old Aug 3, 2012 | 09:54 AM
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2018 BMW 540d
Originally Posted by hutch300
That's good to know.... I have a blutec on order I hope to get it in december
And for future reference..."AdBlue"..generic name:diesel exhaust fluid ("DEF")...needn't be a big deal.Yes,there seem to be some malfunctions connected to the sytem but the periodic refilling of the tank is a piece of cake (I did it on my BMW).My Bluetec just reached 18K miles and my "add fluid" warning just came on about 200 miles ago.At least 80% of my miles are interstate miles so that could affect usage per mile.And DEF can be bought for about $12 per 2.5 gallon jug and,given that my tank takes about 6 gallons that comes out to about $30 per 19K miles.
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Old Aug 3, 2012 | 04:40 PM
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2012 ML 350 BlueTec
Just be careful not to spill it. It really makes a mess of the paint.
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