300d DEF level - Mercedes GLE Forum
 
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Old 10-08-2016, 12:29 PM Thread Starter
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300d DEF level

Does anyone know how to tell the DEF fluid level in a 2016 GLE 300d?
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Old 10-13-2016, 02:46 PM
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Not too sure but isn't there an indicator for it ?
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Old 05-25-2017, 11:34 AM
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Supposed to be enough to get you to each 10K service interval...
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Old 05-25-2017, 01:49 PM
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If it's anything like other systems, like Range Rovers for example, you'll get multiple warnings until the eventual "no engine restart" to which I'm pretty sure you better have some DEF on hand because it really won't restart.
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Old 06-04-2017, 03:17 PM
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If the DEF level drops below the reserve level, you should get a warning and still have time after that to refill before it goes empty.
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Old 06-06-2017, 12:04 PM
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Now it's just a matter of how long can you go before it gets empty and leaves you stranded. I guess once you keep driving.. you should be alright?
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Old 06-09-2017, 11:05 PM
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Originally Posted by GLEM View Post
Now it's just a matter of how long can you go before it gets empty and leaves you stranded. I guess once you keep driving.. you should be alright?
With the DEF filler cap under the fuel door next to the green fuel cap, I'm not expecting any problems after the extended service that I paid for in advance is all used up... I will still be taking my rig to the dealer until the 100K extended warranty is used up. Having twin turbos and piezoelectric injectors, I did want the added security but now I'm spoiled and so far it has been been easy, problem-free driving for us (knock on wood). The miles between fuel stops is great and not having any problems with the DEF tank going dry between service intervals is part of the package: e.g., >30 mpg on a 5,000 lb. SUV with exhaust that passes the white handkerchief test.

Last edited by Mac; 06-09-2017 at 11:17 PM.
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Old 06-11-2017, 01:26 PM
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Do you know what the levels are right before you go for your next service? As in, is there a lot to spare kind of deal?
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Old 06-11-2017, 02:57 PM
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Originally Posted by GLEM View Post
Do you know what the levels are right before you go for your next service? As in, is there a lot to spare kind of deal?
The 2015 ML (GLE) AdBlue tank is 7 gallons and, apparently a lot to spare...

We've got a 2015 "250" with 47005 miles and prepaid service and it does get better mpg than our previous 35OBTC so it probably uses a bit less AdBlue every 10K miles.

The 40k service invoice says, "1/2 GAL OF ADD BLUE." Ditto for the 20.5K service. The 10.4K service says, "//CORRECTED ADBLUE LEVEL. 4 GLS"

So, I'm thinking MB's little diesel uses ~1/2 gallon of AdBlue every ~10K miles and the 7-gallon AdBlue tank is only filled with 3-4 gallons to begin with (or, perhaps 0.4 gallons were added at the 10K service).
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Old 06-11-2017, 03:07 PM
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FYI-- in addition to the above, found the 30.3K service invoice too. It says... AND ADD 4.0 QTS ADD BLUE FLUID.
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