How do I reset my DEF light?

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.

How do you reset a Mercedes Sprinter van?

On the left side of the instrument panel, find and press the reset button. Hold the button for three seconds before releasing it. Press the reset button the second time and hold it until the display will show that it has been reset. Turn off the vehicle and wait for 60 seconds.

How do you reset a Mercedes Sprinter NOx sensor?

Go to the System menu, select Engine, then choose the specifics for your vehicle and go to Functional Tests, followed by Special Functions. At the next screen pick Adaptations then scroll down to find Reset Learned Values Of NOx Sensor Upstream And Downstream Of SCR Catalytic Converter.

Why does my Mercedes Sprinter keep going into limp mode?

“Limp Mode” or “Limp Home Mode” is a condition that can affect turbocharged diesel vehicles. Your Sprinter’s ECU senses something malfunctioning in the turbocharger system–either reading too much boost, too little boost, etc. –and decides puts the van into low power or “limp home mode”.

What causes a DEF pump to fail?

Dirt / Metal Contamination: Contaminated DEF can cause abrasion of the DEF pump. Dirt, rust or tank scale can occur with improper of DEF storage or handling (e.g. res-using disposable DEF containers). UREA Concentration (Dilution): Diluted DEF (too much water) reduces its NOx neutralization effectiveness.

Why is my DEF light on?

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.

How do you reset service B on Mercedes Sprinter?

How to reset Mercedes Sprinter Service Reminder

1. Insert key in the ignition and turn to position II.
2. Press the menu buttons.
3. Press up arrow until you see Service A in xxx miles or Service B in xxx miles.
4. Press the 0 reset button on the side of the instrument cluster and hold until you hear a beep.

What is a NOx sensor on a Mercedes?

The NOx sensor from Mercedes-Benz supplies up-to-date data on exhaust gas aftertreatment and so plays a valuable role in ensuring that exhaust gas emissions are not exceeded. It is also a vital component for ensuring low fuel consumption and optimum engine performance.

What does a NOx sensor do?

The NOx sensor is part of the NOx reduction aftertreatment system used in diesel vehicles with urea based SCR systems. The sensor located upstream of the SCR catalyst directly measures the engine-out NOx gas concentration, which helps determine the optimum amount of urea injection.

How do I bypass Mercedes limp mode?

All you have to do is waiting for about half an hour before you reconnect it. The underlying step is likely to reset the transmission memory on the whole. Once you restart the car after effective reconnecting, the limp mode would deactivate on its own.

What is a T1N Sprinter?

The T1N (Transporter 1 Neu) is the first generation van 2002 to 2006 in the US, and only came with a 2.7 liter inline 5 cyl diesel. The NCV3 (New Concept Van 3) is the second generation van, 2007 to 2018, and came mostly with a 3.0 V-6 diesel.

Is the Def light on on a Mercedes Sprinter?

Or the reading is inaccurate. In either case, a simple reset is all you need to do. Keep reading to learn how it’s done correctly on a Mercedes Sprinter. The Diesel Exhaust Fluid or DEF light is a warning system that alerts you when the DEF tank is close to being empty.

What are some of the 2010 Mercedes Benz Sprinter heater problems?

DEF heater failure is a common problem that affects most 2010 and newer Mercedes-Benz Sprinters. The AdBlue tank has a heater in it to keep the DEF from freezing. The heater element burns out, which causes the check engine light to come on and limp mode.

Why is the Mercedes Sprinter considered a diesel car?

They manage to have all the power and performance of a diesel engine while avoiding most of the pollution that typically comes from that sort of fuel. This is because the Mercedes Sprinter and other vehicles like it make use of what is known as DEF (Diesel Exhaust Fluid).

Do Mercedes Sprinter vans have a lot of problems?

Mercedes-Benz (and Dodge) Sprinter vans can last over 200,000 but before you reach that milestone, there are a few problems you may experience. Common problems with the Mercedes-Benz Sprinter vans include DPF filter clogged, AdBlue heater element failure, and transmission issues.