Ad Blue indicator
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Joined: Nov 2009
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2010 GL350
Ad Blue indicator
Did my first oil change for 2010 GL350 at 12,000 miles by using Griot's all purpose pump. Easy and clean method of getting the oils out. While resetting the service light, I found there was an Ad Blue indicator. My indicator shown 5 bars. Does anyone know if that means full? I just added Ad Blue all the way to the top a month ago.
Just a side note, I extracted about 8 quarts of oil and put in 8 quarts of 229.51 oils. Drove the truck around for a few minutes and the CEL came on. Checked the dipstick was below the min mark. Put in another quart now it's between min & max. Hope that CEL will go away...
Just a side note, I extracted about 8 quarts of oil and put in 8 quarts of 229.51 oils. Drove the truck around for a few minutes and the CEL came on. Checked the dipstick was below the min mark. Put in another quart now it's between min & max. Hope that CEL will go away...
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From: San Clemente, CA
2010 GL 350 Bluetec
I recently had a "Check Engine Light" on my ML 320 Bluetec and it was tied to my Adblue tank level. I had the oil changed slightly early (at about 7500 miles), but filled my Adblue tank at home. When I took the truck in at about 12,000 miles (about the time one would expect the Adblue level to be low), to address the CEL, MB said there was a software update to get the CEL to go away and that it had to do with the Adblue tank level monitor. I was left thinking that MB built in a software issue not recognizing when the customer filled his own Adblue tank. Anyway, I just waiting to see if it shows up on my GL350.
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2010 GL350
MP, Thanks for sharing that. I am thinking to drive for a few days and see if CEL will go away. Otherwise will bring it in to dealer, will also get the AC charger outlet fixed. They messed that up rwhile eplacing the ad blue pump. These guys were so sloppy, I found two cleaning towels under the cover.
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From: USA
10 speed bicycle
The AdBlue pump is not available separately, it comes complete with AdBlue tank. Commonly what happens(and it's all too common) is when people fill there own AdBlue tanks, they spill some on the tank. Urea (AdBlue, DEF, etc) crystalizes and cause all types of damage to all the electrical connections for the AdBlue tank, requiring replacement. It is almost always customer pay. So be sure you did not spill any AdBlue. Any faults in SCR will set the CEL.
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From: NW corner of CONUS
2008 GL 320 CDI, 2004 VW V10 Touareg TDI
MUCH better to underfill than to spill. Dried (or drying) urea has very unpleasant effects on copper. And electrical connectors are always copper.
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15 GL550
There has never been no such issue where the SCR control unit did not recognize when a customer filled there own, as it is done the same way at the dealer.
...Commonly what happens(and it's all too common) is when people fill there own AdBlue tanks, they spill some on the tank. Urea (AdBlue, DEF, etc) crystalizes and cause all types of damage to all the electrical connections..
...Commonly what happens(and it's all too common) is when people fill there own AdBlue tanks, they spill some on the tank. Urea (AdBlue, DEF, etc) crystalizes and cause all types of damage to all the electrical connections..
Last edited by 43221B; Aug 19, 2010 at 05:59 AM.
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From: USA
10 speed bicycle
So you are saying that there are electrical connections that are exposed on the underside of my Bluetec GL Adblue tank which is an external tank? My adblue tank was exposed to so much salt brine this past winter that if there were electrical connections exposed in any way, I would think I would have corrosion from salt brine? Are people that are getting corrosion letting a half gallon run over and fill up the tool compartment and the protective cover around the adblue tank or are we talking about just a little dribble running down the outside of the tank. MBtech, your insight would be appreciated.
Commonly, a customer comes in, and states that there CEL came on, right after filling AdBlue.
Basically it is just like filling your washer tank...just don't spill it, and you won't have problems. AdBlue crystalizes very quick. Usually when filled at the dealer, protective coverings are laid down in the event of any spillage. If you spill some, hose it off quick.
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From: USA
10 speed bicycle
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Joined: Jul 2009
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2009 GL320 Bluetec
I may be having this issue right now on a GL320. Dealer performed a routine service interval a couple of weeks ago (30K miles), which of course includes filling AdBlue. A few days later, Check Engine light with the message "AdBlue-Check Additive", and the dealer says the code is "Fill Level Sensor- AdBlue/Short to Ground."
They flashed the unit with recall software, and said we'd have no further problems. A week later, the same issue has cropped up (Check Engine light, AdBlue-Check Additive message). I'm waiting for the 2nd appointment now.
I've never put in AdBlue myself, so if it's a past spill causing corrosion, it was done by the dealer.
They flashed the unit with recall software, and said we'd have no further problems. A week later, the same issue has cropped up (Check Engine light, AdBlue-Check Additive message). I'm waiting for the 2nd appointment now.
I've never put in AdBlue myself, so if it's a past spill causing corrosion, it was done by the dealer.
Last edited by IridiumRoad; Aug 28, 2010 at 09:48 AM.
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15 GL550
I took a look at the top of the tank using a flashlight the other day. Sure enough, there is a wire harness that plugs into the tank about an inch in front of the opening. While the plug is raised and should only come in contact with def during sloppy fills, there is a possibility that where the wires from the plug enter the tank there is no protection. A simple curved plastic shroud moulded to the top of the tank between the opening and wire harness to direct spillage away from the wires would be an easy fix.
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From: Belgium
E350 bleutec
Hi guys, I've a e350 bluetec w212 from 2011. I had my car for 75000 km A-service. It took unexpected 2 days. Due to bad service, afterwards my car consumed +2L/100km or +15%.
2-3 weeks after back to dealer, and again 2 days service.
2-3 weeks after the "engine light" went on. Straight back to dealer, he tested the car. I insisted on a replacement car, which I paid for. After 1 1/2 day I was informed that it was the Adblue pump heater they changed.
Maybe not connected to GL-14 but still.
I've refilled my ADblue my self every 10.000 km, and consume around 1L/ 1000 km in average.
I've the 4 years extra warranty, so I paid nothing for the Adblue heater.
2-3 weeks after back to dealer, and again 2 days service.
2-3 weeks after the "engine light" went on. Straight back to dealer, he tested the car. I insisted on a replacement car, which I paid for. After 1 1/2 day I was informed that it was the Adblue pump heater they changed.
Maybe not connected to GL-14 but still.
I've refilled my ADblue my self every 10.000 km, and consume around 1L/ 1000 km in average.
I've the 4 years extra warranty, so I paid nothing for the Adblue heater.
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2010 R350 Bluetec
Check AdBlue level
1. Insert key and turn to 1 position, press page button until you see trip meter. Do not start.
2. Press reset button 3 times. you will see system voltage.
3. Press up arrow until AdBlue level indicator.
4. Turn key to next position and you will see AdBlue level, see pictures.
2. Press reset button 3 times. you will see system voltage.
3. Press up arrow until AdBlue level indicator.
4. Turn key to next position and you will see AdBlue level, see pictures.
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2018 E63S
1. Insert key and turn to 1 position, press page button until you see trip meter. Do not start.Attachment 270566
2. Press reset button 3 times. you will see system voltage.Attachment 270567
3. Press up arrow until AdBlue level indicator.Attachment 270568
4. Turn key to next position and you will see AdBlue level, see pictures.Attachment 270569
2. Press reset button 3 times. you will see system voltage.Attachment 270567
3. Press up arrow until AdBlue level indicator.Attachment 270568
4. Turn key to next position and you will see AdBlue level, see pictures.Attachment 270569
