Low def light on but tank is full

Low def light on but tank is full. Nov 16, 2013 · git the low adblue warning the other day. Said I had 200 miles or so before the engine would not start. Bought 2 large containers of adblue from the stealership and filled up the tank. I read on the forums (this and others) that either the sensor would reset itself or I could perform a hard...

Thinking that the dealer did not fill the DEF tank before delivery, I took the truck into the dealer. The dealer tried to add DEF, and the tank immediately overflowed. Thus, we verified that the tank was physically full at, or above 100 percent. The dealer then connected his OBD II reader and got the same result; 45 percent full.

Jul 14, 2023 · As soon as the indicator light illuminates, you should add DEF as soon as you possibly can. To do so, you'll first need to locate your DEF tank. Where this tank is will vary, but newer model vehicles will have it next to where diesel fuel is added. Older models might have it placed under the hood, where the tank will be clearly marked in the ... 2. BMW did issue a 'bulletin' which says they will only do DEF with an CBS -based oil service- HOWEVER, the terms of the contract (ie the maintenance plan in you manual) says they will only do services when advised to do so by the car's CBS. A low DEF warning on the dash IS, in fact, a Conditon Bases Service indicator.Jan 16, 2024 · This answer varies depending on the fuel tank’s capacity since it is different from one vehicle model to another. However, in general, when the fuel gets less than a quarter of the fuel tank capacity, the light comes on. For instance, if your tank capacity is 45, then when the fuel remaining is around 11 liters, the fuel light comes on. Whether that should work for you depends on your DEF tank size. If you have an approx. 5 gallon tank and the level was low enough to trigger the "check DEF" light, then a 2.5 gallon tank should not even come close to filling it up. There are a couple of possibilities for what is causing the behavior you have described, including -Nov 26, 2017. #3. Not sure how big the tank is, but the DEF consumption on my 2015 Passat is about 10-11K miles for 2.5 GAL of DEF. Shortly after getting the 1500 mile warning, I add 2.5 GAL of DEF - the warning repeats about every 10-11 K miles. I have no reason to top it off - don't want to spill any DEF fluid in the trunk, or keep any ...Mar 13, 2019 · 6700 miles on my 2017, 500 mile to empty def fluid light comes on. This is the first time I've had to add def. went to the truck stop, filled it up 6.5 gallons worth, and now it is still counting down til def runs out. The gauge was on1/4 and very slowly raised to full, after about 50 miles of driving, but nothing has changed on the distance to ... Yes, running your car on low fuel can trigger the check engine light to turn on. When you don’t add gas to the tank, your car will run to the bitter end just using the sludge and dirt at the bottom of your fuel tank. This is not good for your engine and may result in your check engine light illuminating on the dashboard.

Whether that should work for you depends on your DEF tank size. If you have an approx. 5 gallon tank and the level was low enough to trigger the "check DEF" light, then a 2.5 gallon tank should not even come close to filling it up. There are a couple of possibilities for what is causing the behavior you have described, including -If you’re an avid homebrewer, a paintball enthusiast, or someone who uses CO2 for various purposes, you know how important it is to have a reliable source for refilling your CO2 ta...Thinking that the dealer did not fill the DEF tank before delivery, I took the truck into the dealer. The dealer tried to add DEF, and the tank immediately overflowed. Thus, we verified that the tank was physically full at, or above 100 percent. The dealer then connected his OBD II reader and got the same result; 45 percent full.1,524 miles 5.5gal of DEF. I got the first low def message at 500 mi. added 2gal and it over filled. Next morning no fault level read full. Next 500mi. Same thing. Next 500mi. message says 0 Def, range to reduced speed 600mi. After driving for 10 minutes with this message it cleared.Low Def light, but guage says full, tank is full. Called mobile ( on a Sat) They arent sure what it would be bc they’ve never had a def header go bad so quickly. So limped into shop back the other direction we were traveling. I was super worried about buying a diesel with Def.. Ive owned several rvs, never been this stuck and disappointed.Motor Mav. 2.22K subscribers. Subscribed. Like. 38K views 1 year ago. Hi, why DEF light blinking on Freightliner tank is full? Though the DEF light blinks mainly when the DEF tank...The battery warning light in your vehicle turns on when you turn the ignition key to the "on" position. As soon as you start the engine, the light goes off and remains off until yo...May 7, 2018 · Technician: Andy. If you have insite, then look under data monitor Locker for the Def quality percentage. It should be sitting near 32.5%If it is out of whack then that will prove that the quality sensor is defective assuming it is only DEF fluid in your tank, and you will have to replace the entire DEF tank module.

DEF tank is full but it shows empty. Also I got derate engine warning messageged. ISX 15 kenworth t680. 2017 - Answered by a verified Technician ... DEF low level light on with 3/4 tank. ... Def reading empty …SYSTEM" warning light on if DEF is over half full. This is my work truck, its an Isuzu NQR chassis, engine is a 4HKI-TC. A while ago the EXH. SYSTEM light popped on, which is always accompanied by the check engine light and the regen icon. I'm not a diesel guy at all, but I researched the light and all I can find is just: 'an issue with the SCR ...A low DEF level can be caused by a variety of factors, including a leak in the system or simply forgetting to refill the DEF tank. A malfunctioning DEF sensor can also cause the light to illuminate, and this can be caused by a variety of factors, including a problem with the sensor’s wiring or a problem with the sensor itself.Oct 9, 2023 · Locate the DEF light on the instrument cluster. Press the odometer reset button for approximately 10 seconds or until the instrument cluster menu appears. Use the menu buttons to navigate to the Service menu. Look for the DEF reset option and select it. Confirm the reset by pressing the reset button again. Let me do a reset. I have check engine and the def fluid was half full and orange. I filled it still orange, The level never change. I replaced sending unit. it registered now full but light still on and check engine and Red exhaust light. I don't know if customer cleared codes before he brought. I can't see if their is a spot to clear now reading.2ndPassat. At least in my case, you can tell the DEF tank is full by noticing DEF fluid spilled around the tank by a sloppy VW mechanic. You can use an AdBlue Audi/VW DEF fluid bottle to fill the tank. If you don't have one, they run about $15 from an Audi/VW dealer. It's a bottle that holds 1/2 gallon of fluid.

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When the low gas light is on, a Honda Accord can travel for an additional 46.81 miles or just over 75 kilometers. The distance a Honda Accord travels past this point depends on fue...Action Taken When the Fault Code is Active. 1)The ECM illuminates the red STOP ENGINE lamp immediately after the diagnostic runs and fails. 2)Engine Torque will be reduced. 3)Vehicle speed will be limited to 8 km [5 mi] per hour. Conditions for Clearing the Fault Code.Then I got a CEL for about 30 min and then directly to the “10 starts remaining” light. I didn’t get a DEF low warning light, just straight to the "10 starts remaining" light. At the next stop I bought some DEF and when I filled the DEF tank it was only a gallon low, no where near being empty.When the summer months roll around, there’s nothing quite like firing up the BBQ for a cookout with friends and family. But if you’re running low on propane, it can be hard to know...

The system thinks DEF BLU reservoir is low or empty but it is full. 2012 Passat engine was replaced at 160,000 miles - Answered by a verified VW Mechanic ... Def sensor keeps popping up when my def tank is full. ... vw passat was low on def fluid ,put 2 gallons in after seeing low def fluid light drove 30 miles and it now wont start , ...I have a 2015 Golf TDI wagon with about 75K miles. Six weeks ago, the Ad Blue indicator came on. Soon after the engine light came on. I added the Ad Blue, but the engine light stayed on and the Ad Blue didn't reset. The dealer said it needs a tank; however, the part is on backorder with no...• The light bar indicates the level of fluid in the DEF tank. • Low DEF levels will trigger a decrease in engine performance. DEF level is EMPTY and IGNORED Vehicle speed limited to 5 mph / engine derated Flashing DEF level is EMPTY Vehicle speed limited to 55 mph / engine derated DEF level is very low Solid DIESEL EXHAUST FLUID (DEF ...2020 freightliner M2-106 with 3 lights on.1 Check engine light. 2 Amber engine light 3. Amber low Def light with blinking red light. My def tank if full but keeps indicating i have no def fluid. Drove … read moreOn your issue, the first thing I would check is the fuse holder on the batteries. This is the main power for the acm. Check for any defects on the fuse and the wiring. If that is fine check the connection where the level sensor plugs in on the side of the tank. If there are no defects there it is more than likely a bad level sensor.When empty it gives an 'exhaust fluid empty' message, and warns of future speed limit. 500 miles after that, it will speed limit to 65mph. 75 miles after that, it will transition to 55 mph. 75 miles after that, it will limit to 5 mph. 2023 LZO CC std box 4x4. previous: 2021 LM2 CC std box 4x4 ; '18 2500 L5P CCSB 4x4; '11 LML, '10 LMM and …2019 GMC 2500 6.6 / 55,000 Miles. Was on a road trip last night and got a DIC warning that I had 175 miles until I was limited to 65 mph. Stopped and put in 2.5 gallons of DEF. After driving another 75 miles or so and trying several on/off with the ignition it didn't reset, so I topped it off with another 2 gallons.To be honest, not very far. Once the DEF light comes on you may only be able to drive between 50 and 100 miles, depending on your vehicle and the size of the DEF tank. Any further and your vehicle should go into limp mode and that is never any fun. To learn more about this situation, just continue to read our article.Meet the researchers trying to save you from brain-draining fluorescent lights. Reaching behind a low bookshelf slightly taller than a typical 5-year-old—and one topped with a Seat...The DEF light is a warning that your vehicle’s diesel exhaust fluid is running low or contaminated. Driving with the DEF light on can cause the engine’s power to be reduced and may eventually lead to a complete shutdown. It is important to refill the DEF tank as soon as possible to prevent any further issues. Keep An Eye On The Def Light

On your issue, the first thing I would check is the fuse holder on the batteries. This is the main power for the acm. Check for any defects on the fuse and the wiring. If that is fine check the connection where the level sensor plugs in on the side of the tank. If there are no defects there it is more than likely a bad level sensor.

Jun 1, 2022 · DEF Light on But The Tank is Full Peterbilt. On location when you see the warning light, even if the tank is full, is that there is a problem in the after-treatment system. That was the good news. The bad news is that there are about 250 items that can turn the warning light on even though the DEF tank is full. The DEF tank is full, or at least it's acting full. Yet the light is still on and I'm down to "250 miles until no start". The closest VW dealership to me is at least 300 miles away, I'm planning on going there in a couple of weeks but I'm scared the car is going to leave me stranded!Low-Empty DEF notifications. When I got the 2014 truck new in Dec of '13, I ran the first tank of DEF way down just to make sure I knew & understood how far I could go by watching the "Low DEF" messages pop up, indicating how far I could go before my speed was limited to "5 mph". Coming back from Ohio with a (new box in the back seat), I ...As soon as the indicator light illuminates, you should add DEF as soon as you possibly can. To do so, you'll first need to locate your DEF tank. Where this tank is will vary, but newer model vehicles will have it next to where diesel fuel is added. Older models might have it placed under the hood, where the tank will be clearly marked in the ...Diesel exhaust fluid (DEF) is a non-hazardous solution used within a selective catalytic reduction (SCR) system to break down harmful pollutants (NOx) generated by a diesel engine. DEF is 32.5% urea, or aqueous ammonia solution, and 67.5% deionized water. The fluid is sprayed and then spread into the exhaust gas via a mixer before entering the ...May 6, 2016 · 27 posts · Joined 2010. #1 · May 6, 2016. Bought my 2016 F250 in October 2015. Last week, at 3800 miles I had a check engine light come on. A few miles later the display indicated I had a DEF fault. When I got home I plugged my code reader into it and indicated a P207F fault. I took the truck into the local Ford dealer and they told me that ... The "Fill DEF" light and message on my 2015 RAM Promaster…. The "Fill DEF" light and message on my 2015 RAM Promaster diesel stays on in the EVIC even though the DEF tank is full. I took it to a RAM dealer to see what the issue is. They said I need a new EGR cooler, tube and corresponding gaskets. They quoted me at $3000.00.Low Def Light. Right before fixing my truck, the low def light came on. I wasn’t concerned about refilling it since it was about to go to 100% complete all the time. Now the gauge shows full, but the dang light comes on and stays on all the time. I thought it might just be a check that would cure itself, but that’s not working out real well.

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Your check engine lite means you probably have an issue with your particulate filter, since your DEF lite is on this means you have a filter clogged or water has caused your DEF filter to clog. does not mean that you are low on DEF, but that there is a concern with the DEF system, same as the check engine and the yellow engine lite …This can cause the DEF to be consumed at an inaccurate rate and/or the level to appear low, even if the DEF tank is full. DEF filter: If the DEF filter is plugged up or dirty it can cause inaccurate readings due to higher or incorrect pressures and flow rates. The DEF filter is located on the bottom of the DEF pump and is inside of a filter cap.The use of improper fluid will trigger a decrease in engine performance. In the empty and ignored state, vehicle speed will be limited to 5 mph until DEF is detected in the tank. …#1. I have a 2014 with the 2.1 (18,000 miles), we purchased about 2 weeks ago, and twice now we have taken it in for the dreaded Low DEF fluid warning, then the 10 starts remaining countdown. Both times I have taken it to the dealership to have it reset. They told me if it does it again they will dig into it more.Ok I’m at the mechanic now his telling me I should replace my whole system but I don’t think that’s the issue It’s saying code 3712 but my truck is saying low level of def. On your issue. If the def level is reading low and the tank is full I would check the wiring by the pdm. If there is no issues present then I would replace the QLS ...The battery warning light in your vehicle turns on when you turn the ignition key to the "on" position. As soon as you start the engine, the light goes off and remains off until yo...Jun 26, 2011. #1. Problem with Sprinter van...DEF light is on even though the resevoir is full. What could possibly be the problem?? Thank you! sailquik. Well-known member. …Jun 8, 2022 · The def tank utilizes electronic resistance sensor. depending on the temp/humidity where you live, def crystallizes on the sensor and shows as if the tank is full/half, even though the actual level is lower. Eventually the crystal melts and all of a sudden you see a significant drop in the bars. Best is to track the mileage and add accordingly. However, a light-duty truck consumes around 2 to 3 gallons DEF per 800 miles on average regarding the tow loads. A diesel truck with 20+mpg can run around 8,000 to 10,000 miles on 10 gallons of DEF. while dodge ram gauge readout and GM has a digital readout to show the remaining DEF in the tank, Ford turns on the DEF light if the fluid …Apr 27, 2016 · Eventually the system becomes confused and just defaults to the miles to empty countdown, and suddenly you'll get a warning saying to refill the DEF, even though the tank is full. That's just one example. In short, the system wants to see the DEF levels drop so that it gets an accurate look. I have a 2013 freightliner Cascadia day cab, last six of the Vin, BM6472. Problem is DEF gauge reading empty blinking red light. Have replaced tank. My check engine light, def light flashing has come on. Now. My check engine light, def light flashing has come on. Now my truck is only going 55mph. ….

To check your DEF fluid level, thumb the steering wheel-mounted selector to exit whatever display program you're in and enter the "Vehicle Info" menu. See All 8 Photos. Generally on our 2020 ...Verified. Hello and welcome to Just Answer! I would be more than happy to assist you today.There are No tricks to by pass. It seems the ecm thinks your def is low. After a 1/4 tank than it derates you so you cannot hurt the system. You seem to have a failed DFE level sensor. This is a OEM or dealer part. The faults MUST be reset with in the ecm.There is one for DEF level indication stuck on full requiring a PCM recalibration. The fact that you hit some bumps and the level went back to full suggests a possible bad electrical connection or something in the DEF tank covering the sensor. I have heard of the DEF heater belts dislodging and possibly covering the sensor.2ndPassat. At least in my case, you can tell the DEF tank is full by noticing DEF fluid spilled around the tank by a sloppy VW mechanic. You can use an AdBlue Audi/VW DEF fluid bottle to fill the tank. If you don't have one, they run about $15 from an Audi/VW dealer. It's a bottle that holds 1/2 gallon of fluid.Technician: ] [\] [iCk0411. If it does come back on then it may be either a hard fault going on with your DEF System. If the DEF light returns it means the motor will probably de-rate again. If your able to get it somewhere that can scan the engine for codes to get a better idea of what's causing the fault.2024 First DEF fill-up. I got this message on my way to work this morning, it popped up with 500 miles DEF range. This is the first time I got a DEF message on the 2024, but I remember my 2020 would first come with a 1000 mile message. Anyway I filled up with 5.89 gallons and can say with current mileage it looks like I would have got 5,000 ...Ah, to be able to shift those unwanted pounds with magical lasers. If only. Well, help is at hand... kinda. We look at the (sometimes iffy) science. Are you looking for some illumi...38K views 1 year ago. Hi, why DEF light blinking on Freightliner tank is full? Though the DEF light blinks mainly when the DEF tank is empty or nearly empty, if …Cold Laser Physical Therapy is a laser that uses low intensity light to treat sprains, strains and other tissue issues painlessly. With this relatively new procedure, there are man... Low def light on but tank is full, Conclusion. To reset the DEF light on a Mercedes Sprinter, sometimes all it takes is to simply refuel the DEF tank. However, if that doesn’t help, disconnect the negative battery cable and allow it to run for around 30 minutes to discharge all the power. Alternatively, you can use an OBD2 scanner and wipe the code without having to drain …, Generally, a warning light will come on when DEF needs to be added soon. If the light is ignored for too long, the vehicle will likely go into a reduced power mode. If the DEF level falls too low, the engine will not start until fluid is added. To avoid getting stranded, make sure you understand how your particular car or truck is designed to ..., Apr 27, 2016 · Eventually the system becomes confused and just defaults to the miles to empty countdown, and suddenly you'll get a warning saying to refill the DEF, even though the tank is full. That's just one example. In short, the system wants to see the DEF levels drop so that it gets an accurate look. , There is one for DEF level indication stuck on full requiring a PCM recalibration. The fact that you hit some bumps and the level went back to full suggests a possible bad electrical connection or something in the DEF tank covering the sensor. I have heard of the DEF heater belts dislodging and possibly covering the sensor., Yes, you can drive with DPF light on. It indicates the fluid level of the DPF tank. Still illuminating DEF warning light means low level and blinking light means below critical level of DEF fluid in the tank. When the tank becomes empty, your vehicle performance becomes limited. It can lower to 5 mph which will force you to fill the tank. , DEF gauge and indicator light or LED flashing on the gauge default to "E" is an standard for an active SCR related fault. Not necessarily a defect with the DEF level gauge itself or that the DEF is low. Need to hook up, could be many things., There is one for DEF level indication stuck on full requiring a PCM recalibration. The fact that you hit some bumps and the level went back to full suggests a possible bad electrical connection or something in the DEF tank covering the sensor. I have heard of the DEF heater belts dislodging and possibly covering the sensor., This answer was rated: ★★★★★. I have a 2016 freightliner HDJE6489 the def tank is full but…, If you’re an avid homebrewer, a paintball enthusiast, or someone who uses CO2 for various purposes, you know how important it is to have a reliable source for refilling your CO2 ta..., The DEF Warning Light is a dashboard light in newer model Freightliner trucks that illuminates when the truck’s diesel exhaust fluid (DEF) level is low. The DEF is used to help reduce emissions from the truck’s engine, and when it runs low, the warning light will come on as a reminder to refill the tank. If the DEF Warning Light comes on ..., Apr 4, 2019 ... In this video I preform a DEF Level reset on this 2011 GMC. This is a fairly common issue on these trucks and a pretty easy fix. -Enjoy!, The most likely cause of these symptoms on this year model would be a faulty DEF quality sensor. These symptoms could also be caused by another problem with the SCR system such as: A faulty nox sensor. An issue with a DEF system component (DEF pump, DEF doser or wiring for any of these sensors/components), Mar 9, 2024 · To reset your engine system properly, you’d have to disconnect the negative battery cable and let your engine drain away all its power by waiting for about 30 minutes. This will force the computer to reset on its own. Later on, you need to use a code reader, pour in enough DEF, and take the vehicle to a repair shop . , Adblue 200 mi warning light came on 2014 Passat Tdi. Also the check engine light threw a p204f code. It was 30 degrees and about 15 … read more. Eric. 57,201 satisfied customers. 2014 VW Passat. AdBlue warning came on even though the DEF. 2014 VW Passat. AdBlue warning came on even though the DEF reservoir is full., Between me and the dealer (when they did my free oil change) about 5 gallons of def had been added to my truck for the first 10k miles. At that time the 500 mile warning came on I was heading out on a 5k mile trip, so I filled it - took 4-4.5 gal, and it was definitely full. 3.5k into the trip (2.5k empty, 1k towing an 8k# TT) the 500 mile warning …, Phillippeterson. First oil change at 7,000 miles on a 2017 6.7 had dealer fill up DEF tank which was showing almost empty, showed full on gauge until 2 days later now it shows almost empty. Topped off DEF tank and it was full. Get warning that DEF tank will run out in less than 400 miles., Symptoms of a failing fuel pump include increased fuel consumption, gasoline odor in the vehicle, reduced engine power and acceleration, engine stops running during operation, car ..., Catch is that I had 5-8 of a tank. My dash computer switched over to saying Low DEF and my check engine lamp was on. I pulled into the Pilot in Rayville, LA and bought a jug of DEF. Put it in my tank and gave it a few minutes to settle. When I restarted my truck the gauge showed I now had 6/8 of a tank but now the red light was flashing at …, Then I got a CEL for about 30 min and then directly to the “10 starts remaining” light. I didn’t get a DEF low warning light, just straight to the "10 starts remaining" light. At the next stop I bought some DEF and when I filled the DEF tank it was only a gallon low, no where near being empty., The def tank utilizes electronic resistance sensor. depending on the temp/humidity where you live, def crystallizes on the sensor and shows as if the tank is full/half, even though the actual level is lower. Eventually the crystal melts and all of a sudden you see a significant drop in the bars. Best is to track the mileage and add accordingly., Sep 25, 2018 · the first time I went to the dealer and he said that it is probably due to the recall # 18M01 "reductant heater and sender assembly fails". we had an appointment at ford dealer to fix it for the next day but the day before the appointment I filled the tank back up and the engine light disappeared right away so he wouldn't do it because he said ... , I had an issue but was the 250 mile warning once after towing heavy and I put a jug of DEF in it and the low def warning WOULDNT go away. Corrected itself after a few days of normal driving so never go to Limp mode. Besides that put it back to stock. Drive it. Fill up the DEF. Disconnect the batteries overnight. Maybe that would help., Springfield, VA. TDI. ‘18 Tesla Model 3D+, ‘14 Cadillac ELR, ‘13 Fiat 500e. Nov 24, 2014. #4. The DEF tank uses a three-position level sensor (four electronic probes). Add a few liters of fluid, then turn the ignition on for 30 seconds. The system will reset the low fluid alarm if enough fluid has been added to satisfy the sensor., Let's look at the chart of gas, what growth stocks tell us, the 'M' pattern, and why you might want to top off your tank. While everyone is focused on the nonsense goin..., First oil change at 9800 miles, required 2.75 gallons DEF to refill tank using VW filler bottle for the first 1/2 gallon, twisting off the plunger top, and refilling the VW bottle from the bulk 2.5 gallons I got at NAPA for $10.50., The first step to resetting the DEF light on a Ford F250 is to start the engine. Once the engine has been started, the DEF light will go into a diagnostic mode. This will typically last for around 10 seconds, and you will be able to observe the light blinking. Once the diagnostic mode is complete, the DEF light will go out., The reductant is a good conductor of electricity. When the reductant tank is full, the reductant closes a circuit between all three level electrodes and the ground electrode, indicating the tank is full. As the reductant is consumed, the level drops and uncovers each electrode in sequence. The PCM calculates the reductant level based on these ..., Yesterday I filled the def tank with eight gallons of def. This morning the def light is flashing along with the check engine and stop light on this 2015 freightliner. The def gauge says full. Company road service thinks I am stupid and put diesel in the def tank but at least is sending out a TA service truck to come see what is wrong with me., Do a manual regeneration clean it up. Then it has to pass a DEF fluid quality test. If you can keep driving it, the ECM will run the tests and either clear the message or turn the light back on. It has to see the system working normal for the message to clear. I have a 2015.5 Chevy 3500 single rear wheels., Outdoor lighting plays a crucial role in enhancing the overall aesthetics and functionality of your outdoor spaces. Whether you have a sprawling backyard, a cozy patio, or a charmi..., Yellow Def light is blinking but tank is full on 6.7 Cummins. Answered in 1 hour by: Technician: Andy. Andy. Category: Medium and Heavy Trucks. Satisfied Customers: 3,031., I assumed warnings were based on the level of tank only and the computer countdown started at 500 miles to empty. I decided to get the manual out last night and read about filling the DEF. It said no action is required until 500 miles (800 km) to empty. It looks like it is designed to go from oil change to oil change., Technician: Andy. If you have insite, then look under data monitor Locker for the Def quality percentage. It should be sitting near 32.5%If it is out of whack then that will prove that the quality sensor is defective assuming it is only DEF fluid in your tank, and you will have to replace the entire DEF tank module.