Diesel exhaust fluid (DEF) is a type of fluid used in diesel engines to reduce emissions. DEF is also sprayed into the air to reduce pollution. Recently, there have been reports of diesel exhaust fluid dosing malfunctioning, which can lead to extremely high levels of poisonous gas being emitted from the engine.
If you have encountered the Def Dosing Failure Warning Message while driving your Mahindra tractor, you should immediately protect yourself and others.
Here are some tips on how to do just that:
- Get away from the engine as quickly as possible: If you can, try to get as far away from the engine as possible. If there’s no escape route available, then shielding your face and eyes with your hands is your best option.
- Protect yourself from breathing in toxic gas: If the gas level is high enough, it may be difficult or even impossible to avoid breathing in air contaminated with poisonous gas. In this case, try to shield your nose and mouth with your hands.
- Stay calm and call for help: If you are in an emergency where you cannot escape the engine or the gas has already started affecting you, try to remain calm and call.
See also: Kioti Tractor Red Light On Dash
What is Diesel Exhaust Fluid?
Diesel exhaust fluid (DEF) is a type of solvent used in diesel engines to clean the cylinders. DEF is also used as a fuel additive to increase diesel engines’ performance and fuel economy. When DEF is not dosed correctly, it can cause engine malfunctions.
See also: Nissan Forward Collision Warning Light
How Does Diesel Exhaust Fluid Work?
The DEF dosing system is responsible for distributing DEF to the Hilux engine. If the system malfunctions, it can cause several problems, including inaccurate fuel delivery and emission levels.
A common problem with the DEF dosing system is a lack of fluid flow. This can happen for various reasons, including blockages in the supply or distribution lines. When this happens, the DEF tank may not receive enough fluid to keep up with the engine demand. This can result in elevated emissions levels and decreased fuel economy.
If you notice any issues with your DEF dosing system, be sure to contact your vehicle manufacturer or dealership ASAP. In most cases, repairs can be made relatively quickly and without any significant modifications to your vehicle.
Recommended article: DEF Warning Light Reset
What Causes a Diesel Exhaust Fluid Dosing Malfunction?
A diesel exhaust fluid (DEF) dosing malfunction occurs when the DEF tank’s vacuum system fails to maintain proper pressure, delivering excess DEF to the engine. This can cause problems with engine performance and emissions.
Read also: Case Tractor Warning Lights, Symbols, And Meanings
How to Fix a Diesel Exhaust Fluid Dosing Malfunction
If your diesel engine is not dosing the exhaust fluid properly, it can cause emissions problems. You’ll need to disable the fuel injection and reset the dosing system to fix the problem.
If you are experiencing a DEF dosing malfunction, it is essential to contact your dealer immediately. If this occurs, the DEF will mix with air, resulting in an explosive mixture.
FAQs About Def Dosing Malfunction Warning Message Mahindra
What is the DEF dosing malfunction error?
When experiencing a DEF error, it is recommended to visit an authorized service center in the nearest city and refill the DEF tank. A link for finding these centers has been provided for convenience.
What causes DEF system failure?
Technical support teams at construction equipment manufacturers and dealers receive calls daily covering various topics. Often, the conversations revolve around three common issues associated with diesel exhaust fluid (DEF): inadvertently putting DEF into the diesel tank, contamination of DEF, and improper handling of DEF.
What does AdBlue dosing malfunction mean?
The AdBlue warning light indicates that the diesel exhaust fluid level is low. Continuing to drive with a low level may eventually result in your engine not starting again until the fluid has been replenished. It can also indicate a malfunction, so having this checked out as soon as possible is essential.
What is DEF dosing?
The dosing valve is managed by a computer, providing exact quantities of DEF fluid to the decomposition reactor. The valve atomizes the injected DEF fluid into a fine mist to convert it into ammonia in the decomposition reactor.
What are the indications of a malfunctioning DEF injector?
When a DEF injector isn’t functioning correctly, one might observe a check engine light or a “Reductive Fluid Quality” alert on the dashboard. This malfunction frequently triggers the truck to enter limp mode and display specific engine fault codes.
How does the vehicle’s system detect the presence of DEF in its tank?
For machinery produced with an emissions system from the 2010 model year onwards, which necessitates the addition of Diesel Emissions Fluid (DEF), there’s an integrated sensor. This particular sensor monitors the DEF’s level, temperature, and perhaps its quality within the tank (known as the DEF Sensor).
What could lead to the failure of DEF injectors?
Potential reasons for DEF injector failure include over-dosing, which might stem from a semi-open DEF injector nozzle, obstructed DEF lines, or issues with the DEF pump. Additionally, filling the DEF system with hard water might cause the formation of scales or deposits. The presence of dirt or metallic particles in the DEF can also result in wear and tear of the DEF pump.
Am driving right now XUV500 Mahindra and facing same issue right now and no service centre was able to help me out with the def dosing malfunction and now remaining km are showing 600 and I need to reach Mumbai. What should I do and distance remaining is 686 km
Two service centre I have approached one in Bhilwara Rajasthan Agro and another in Udaipur they have just wasted the kms and time