Say goodbye to all issues!

Deleting

DPF error

AdBlue error

DEF error

EGR error

For Mercedes Diesel

We have developed a special OBD module that solves all problems related to the emission control system. No more hassles starting your car in just 3 minutes!

Delivery Worldwide just in several days

Find Cheaper Solution, Get Personal discount!

1-year warranty for each OBD module included

24/7 customer support anytime you want

MERCEDES-BENZ W212 NOX SENSOR 2 BANK 1 SOLUTIONS

Live Examples Of Errors

What errors usually look like

Check Your Dashboard

Have you ever seen such lights?

If so, it's likely due to an AdBlue EGR, DPF, EKAS- related problems

Also Known As

The most common errors

Exhaust Fluid Reserve!

Refill Exhaust Fluid!

15 Starts Remaining!

Cannot measure fluid level!

Engine Start not possible in *** km (mi)!

These are the most common errors you may see on your dashboard

ANY QUESTIONS? WE’RE HERE TO PROVIDE answers — JUST ASK!

Repeated dashboard faults can take a working car out of normal use faster than most owners expect. On this page, we focus on NOx Sensor 2 Bank 1 Mercedes-Benz W212 and explain how our handheld solution helps clear the stored warning so the original hardware can stay in place while the Mercedes Benz W212 remains usable.

When this W212 issue becomes the main problem

Our company supplies one direct tool for Mercedes W212 applications where the Mercedes-Benz NOx Sensor path keeps the warning active. In practical use, owners often search for phrases such as W212 NOx Sensor, Nitrogen Oxide Sensor, Mercedes-Benz NOx Sensors, or P229F Mercedes-Benz NOx-Sensor 2 Bank 1 when the same fault stays stored after restart. The goal is simple: keep the car in service without immediate replacement of the original part.

This page stays narrow by design. It is written for the W212 model only. We do not turn it into a mixed auto catalog of unrelated products. We provide one focused electronic solution for a stored dashboard error linked to the correct sensor path on a CDI Mercedes Benz platform.

How owners usually describe the warning

Search language varies, but the intent stays the same. Some owners mention an error code with sensor circuit range performance. Others describe a component NOx Sensor fault, a sensor heater control problem, a sensor circuit fault, or a sensor cylinder reference. Some compare the NOx reading with an oxygen sensor or search broad phrases like sensor Mercedes-Benz, oxides NOx Sensor, or intake fuel data when they try to understand why the warning remains active.

In many cases, the top problem is not the search wording itself. The top problem is that the stored warning does not clear, the same sensor status remains active, and the owner wants the correct W212 setup instead of changing another part too early. That is especially relevant for a CDI owner who uses the car daily and needs a direct answer.

Focused on Mercedes Benz W212 NOx dashboard faults
Relevant when the stored warning stays active after restart
Designed to keep the original part in place

What our solution does

The tool connects through OBD and applies the required script to clear the stored dashboard restriction. It does not require immediate hardware replacement. That matters when the owner wants to keep the Benz available for normal use while avoiding unnecessary downtime.

We keep this content technical and specific. It is not a page for unrelated sensors, mixed auto categories, or broad parts listings. It is a focused page for one W212 model, one NOx warning path, and one practical result.

Before ordering

To prepare the correct setup, we may ask for the exact W212 model year and the dashboard text. That helps us confirm whether the stored warning belongs to the correct sensor path and match the right solution for the Mercedes Benz vehicle. For many owners, this is the cleanest way to handle a stored NOx Sensor 2 Bank 1 Mercedes-Benz W212 warning without immediate replacement of the original part.

No bundled accessories or unrelated products
No need to replace hardware as the first step
One direct solution for a stored W212 NOx dashboard fault

Question by Tyler • Published on April 20, 2026

How do I clear a NOx Sensor 2 Bank 1 warning on a Mercedes W212?

My Mercedes-Benz W212 keeps showing a NOx Sensor 2 Bank 1 warning after restart and I do not want to replace another sensor too early if the car still needs to be used every day. Is there a direct way to clear the stored dashboard fault properly and keep the original hardware in place while I get the car back to normal use?

Answer by OBDtune Team

✅ Price: from $459
✅ Compatibility: Mercedes Vehicles All Types
✅ Worldwide Delivery

For Mercedes W212 NOx Sensor 2 Bank 1 fault cases, our handheld OBD module is often the most practical solution because it clears the stored dashboard restriction on the correct NOx sensor path without making immediate hardware replacement the first step. That helps keep the car usable, reduce downtime, and remove the active warning while the original sensor remains installed.

What is OBD module

Encode your Sprinter with hand-held module to fix DEF issues forever

We have developed the module, looks like a simple OBD plug.
It can program ECU with maximum ease for everyone!

Universal solution

No Downtime

Ready To Go!

Easy To Use

Installing our module is as easy as switching on a kettle: just plug it in and wait for the download to finish.

No special knowledge required!

Best Solution

2026

Save Money

You may be facing a situation when the movement of your car is restricted or blocked, and you'll have to call a tow truck and go to the service. Any of our modules cost less than potential expenses for repair and a tow truck in such situation.

No Nerves

As it usually happens, a problem can arise at the most inconvenient moment: before a trip, during delivery of an order, etc. Instead of waiting until you encounter a problem, it's better to prevent it.

Easy Installation

The module is plugged into the OBD diagnostic port. The software is installed directly to the ECU. You don't require any tools, laptop or additional wires etc. Full plug-and-play solution.

Unlimited Use

You will receive our hand-held module. With it, you will be able to activate and deactivate selective catalytic reduction, EGR, DPF, and Swirl flaps when necessary. The device stays with you, there's no requirement to return it.

Saves warranty

The module stores several encodings, one of which is the Factory ECU map. At any time you can repeat the module installation process to activate/deactivate selective catalytic reduction, EGR, Flaps. This will help keep your dealer warranty and pass the emissions test.

Quality product

We offer a 1-year warranty on the module and will send a free replacement if it stops working.

24/7 Support

You will receive support from our expert in the shortest possible time, even on weekends.

Check out our benefits!

Installation takes just 3 MINS

Plug in the tool to the OBD diagnostic

There is a diagnostic connector in every car and access to it is simple and convenient. You simply have to insert our module into this slot.

CONFIRM SETTINGS ON THE COMAND SCREEN

The screen will allow you to select one of several scripts. Use the <> buttons to switch between them and the * button to confirm the selection.

Wait to be loaded

After selecting the script, the installation process will start. It takes from a few seconds to 10 minutes depending on the script. Just follow the instructions on the screen.

KEEP DRIVING WITHOUT LIMITS

When the installation is complete, remove the module, start the engine and make sure there are no more errors.

EASY SETUP WITH ALL MEDIA SYSTEMS

Watch these video instructions for installing the module and see how easy it is!

WE OFFER 3 SOLUTIONS

Our module will solve the problem of your vehicle being idle or spending extra money on repairs and finding a qualified mechanic.
Choose the right solution and install it yourself in a few minutes!

SCR ADBLUE / DEF DELETE

SCR total delete – no longer necessary to repair the SCR system and refill the AdBlue fluid

Whats include?

Completely remove Check Engine error

Completely remove 0 Remaining Starts error

Completely remove Starts idle error

Completely remove Check AdBlue error

Ability to roll back to factory settings

Maintains the dealer warranty

Easy pass emissions test ability

699

one-time payment

Off-road use only - about usage

PACKAGE DEAL

We suggest deleting all of the following components together (SCR, EGR, Flaps and DPF) as all of these elements work together as one system

Whats include?

Completely disables SCR (DEF) system on equipped vehicles

Completely disables EGR valve

Completely disables Swirl Flaps in the intake manifold

Optionally disables Diesel Particulate Filter

Ability to roll back to factory settings

Maintains the dealer warranty

Easy pass emissions test ability

ECU Tune Stage 1

999

1299

one-time payment

Off-road use only - about usage

ADBLUE (DEF) COUNTER RESET

Temporary solution – start the engine and drive to workshop without limitations but the SCR still needs to be repaired

Whats include?

SCR system continues to work

Ability to reset engine starts counter as many times as needed

Absolutely legal

Maintains the dealer warranty

459

one-time payment

What you'll run into without our module

You might not see them coming, but additional issues are often part of the package. It's the heads-up every customer needs.

Dealers delay

Waiting on car parts from a dealer? Brace for delays. Parts often aren't in stock, and delivery dates can shift, leaving you hanging. Dozen of surprises.

Wasting money

Repair expenses hit hard. High costs for parts and labor, plus dealer markups, and downtime mean losing more money. It's a major financial issue for truck owners.

Repair downtime

Bracing for repairs? Parts and labor are pricey, and there's always a chance of finding more issues, especially with the exhaust system.

Why better choose package deal

Just a quick heads-up on the headaches our solutions will save you from. Through years of experience, we've nailed down our customers' top issues and crafted the perfect fix for each. A package deal – it's an all-in-one solution.

Exhaust Gas Recirculation or EGR

Soot builds up on the valve, which can interfere with its operation and cause it to fail. Repairs are expensive and difficult. And most often the repair period takes a long time.

AVERAGE COST

How much you'll save

2000

Selective Catalytic Reduction or SCR

The SCR system consists of a large number of components that can fail. The most expensive breakdown is the DEF level sensor in the tank, as it will require replacing the tank entirely.

AVERAGE COST

How much you'll save

3000

Swirl Flaps in the Intake Manifold

Also, soot builds up in the intake manifold, which will interfere with the operation of the flaps. In this case, the entire exhaust manifold will have to be replaced, which is very expensive.

AVERAGE COST

How much you'll save

3500

Diesel Particulate Filter or DPF

Remove the DPF when it is clogged and only if you don't want to buy a new one, because it is very expensive. In that case we could add coding additionally so you can remove the DPF when the time comes.

AVERAGE COST

How much you'll save

5000

Tons of issues out there, but we've got one solid fix ready to go!

Get some additional features for your solution!

ADDITIONAL OPTION ECU TUNE STAGE 1

We install extra firmware to cut fuel use and save you 10% on gas. Pretty cool, right?

Dyno & Track tested performance results:

Engine: OM651 2,1L. Gain: +30 HP, +44 ft-lb
Engine: OM642 3,0L. Gain: +40HP, +49 ft-lb

ALREADY INCLUDED IN THE PACKAGE DEAL

SEPARATE CODING OF DPF DELETE OPTION

With this coding, you’ll have the option to remove the DPF from the system.

We advise only removing it if it's fully clogged and replacement or removal is required. Removing it early has no real benefit, so it’s best to wait until it’s truly necessary.

200

Reviews from our clients

Check out the experiences of clients who have successfully solved their problem with our module.

Swipe left to see more

The updated code seems to be working. I was able to run it for shot trip and I did not get any egr related codes. I would like to proceed with our other sprinter. Same tune, DEF delete, egr delete, and performance.

Rate

Vishal P, US

2017 Sprinter City • Mar, 7, 2024

I don't usually write reviews, but okay. This is the best way to delete AdBlue for your car. Made me love my car again. All the information that is advertised on the website and discussed before the payment was true.

Rate

Jeff Morris, US

2018 Sprinter 319 • Feb, 6, 2024

This is an absolute fantastic product. Instead of eating to the nearest Mercy 200mi specialists, you just plug in this device and it's done in few minutes and the best thing is that you can get it back to original map in minutess.

Rate

Dave R.A., CA

2011 Sprinter 2500 • Mar, 23, 2024

The code is gone! Almost finished running the delete now. Once again, I'm very pleased with how easy this has been as well as your service! Thank you so much.

Rate

Johnatan, US

2012 GL350 • Jan, 31, 2024

Just letting you know that I received the package and installed it on one of my vans already. Everything seems to be working great. Thank you again.

Rate

Gabe, US

2014 E250 Bluetec • Mar, 18, 2024

Thanks again great customer service and tech-support! So far everything is working great. I drove it on the freeway for about 40 minutes.

Rate

Chad S, CA

2020 Sprinter 4x4 • Apr, 2, 2024

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We will deliver your package all around the world

Resolve your issue easily and fast, no matter your location!

Delivery Information

We offer worldwide shipping through our partnerships with FedEx and DHL Express, ensuring your package is dispatched swiftly and reaches you as quickly as possible.

We ship orders as quickly as possible. Most orders are dispatched the next business day, usually in the morning.

Delivery Terms