Say goodbye to all issues!
For Mercedes Diesel
We have developed a special OBD tool 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
P0404 EXHAUST GAS RECIRCULATION CIRCUIT RANGE/PERFORMANCE – FAULT CODE MERCEDES
Live Examples Of Errors
What errors usually look like
Check Your Dashboard
Have you ever seen such lights?
If yes, then they are most often caused by a problem with P0404 error
Also Known As
The most common errors
Exhaust Fluid Reserve!
Refill Exhaust Fluid!
15 Starts Remaining!
Engine Start not possible in *** km (mi)!
Cannot measure fluid level!
ANY QUESTIONS? WE’RE HERE TO PROVIDE answers — JUST ASK!
What is OBD tool
Encode your Mercedes with hand-held module to fix DEF issues forever
We have developed the tool, looks like a simple OBD plug.
It can program ECU with maximum ease for everyone!
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
Check out our benefits!
Installation takes just 3 MINS
01
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.
02
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.
03
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.
04
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!
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
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
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
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
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.
Reviews from our clients
Check out the experiences of clients who have successfully solved their problem with our module.
Swipe left to see more
Pay in any way convenient
for you
for you
You can make payment using any of the options offered. Looking for an alternative?
No problem - just tell us which one
is best for you!
No problem - just tell us which one
is best for you!
Debit or credit cards
Visa Mastercard payment is possible with any bank card
Apple Pay or Samsung Pay
You can pay in one click using Apple Pay or Samsung Pay
PayPal Payment
Choose PayPal payment and enjoy buyer protection
Bank wire transfer
For companies there is a possibility to pay by bank transfer
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 UPS, FedEx, and DHL Express, ensuring your package is dispatched swiftly and reaches you as quickly as possible.
While we strive for immediate dispatch, please allow an average of 1-3 days from order placement for delivery.
While we strive for immediate dispatch, please allow an average of 1-3 days from order placement for delivery.
Delivery Terms
FedEx
In average requires 5-8 business days
DHL Express
Deliver the parcel for 2-4 business days
UPS
Typically delivery takes 2-4 days
Additional options
Why choose us
Because we are extremely attentive to each order and offer a range of delivery options.
01
Real time tracking
You can track the location of your parcel at any time using the tracking number that we send to each client.
02
Tax free
Your order is declared as a low-value diagnostic tool, ensuring quick clearance and minimal fees.
03
PERSONAL DISCOUNT
We will give you a personal discount if you find an analogue of our module at a price lower than ours!
04
Product replacement
Unforeseen situations do occur, and if something happens to the parcel, we will send a new one at our expense.
05
Reliable packaging
We pack each shipment with high quality, so you don’t have to worry about the safety of the contents.
06
24/7 customer support
We constantly monitor each shipment and can advise on delivery times at any moment.
Still have questions or ready to place the order?
Leave a request and we'll contact you in few hours.
We are also found by queries
Additional information
The Exhaust Gas Recirculation (EGR) is a key component in the emissions control system of many modern vehicles, including Mercedes. The EGR works by recirculating a portion of the exhaust gases back into the engine’s intake to reduce nitrogen oxide emissions. This recirculated exhaust helps lower the combustion temperature in the engine, thereby reducing the formation of harmful emissions. The EGR valve plays a crucial role in controlling the flow of exhaust gases into the engine. If the EGR system or EGR valve is not functioning properly, it can lead to a variety of issues including poor engine performance, reduced fuel efficiency, and increased emissions. A clogged or malfunctioning EGR can cause the engine to run inefficiently and trigger error codes. Maintaining the EGR system in good condition ensures that the engine performs optimally and reduces overall emissions output. The P2201 code could also be indirectly related to EGR failures, as a malfunction in this system can impact the engine’s ability to manage emissions correctly. EGR-related issues can often lead to engine warning lights appearing on the dash, indicating a problem that requires attention. When the EGR or any of its components fails to function correctly, the engine control module may adjust the fuel mixture improperly, leading to higher emissions and decreased performance. Addressing EGR faults promptly is essential to keep the engine running efficiently and prevent additional problems. EGR system maintenance is vital for keeping the engine clean, ensuring the EGR valve operates correctly, and extending the life of the engine.
The EGR system, or Exhaust Gas Recirculation system, plays a vital role in reducing emissions by recirculating some of the exhaust gases back into the engine. A malfunctioning EGR can cause a range of issues, from poor engine performance to triggering check engine lights. The EGR valve is a key part of the EGR, regulating the amount of exhaust gases being recirculated. When the EGR valve or any other component of the EGR fails, the engine’s efficiency and emissions control can be significantly affected. Common problems with the EGR system include clogging from carbon buildup, malfunctioning EGR sensors, or even electrical faults that prevent the EGR valve from opening or closing correctly. Proper maintenance of the EGR system is important to ensure that the engine runs smoothly and complies with emissions regulations. If the EGR isn’t functioning correctly, it can lead to an excess of nitrogen oxides being released into the atmosphere. The EGR valve should be checked regularly for any signs of wear or clogging, and the entire EGR should be monitored to ensure it is operating as designed. Our error removal solution helps manage EGR-related issues by clearing the dashboard error codes, so you can keep driving without needing to replace the entire EGR system.
The EGR system can often be the cause of multiple error codes showing up on your dashboard. Commonly, an issue with the EGR valve or EGR sensors can trigger various trouble codes, such as the P2201 code or other emissions-related codes. These codes are the way the vehicle’s computer indicates that something isn’t functioning correctly within the EGR system. When the EGR valve is clogged or failing, the engine control module might store multiple error codes, which can lead to a check engine light staying illuminated. Our solution allows you to reset these codes, ensuring that your engine runs smoothly again without the annoyance of dashboard warnings. Clearing these codes helps maintain proper emissions control and keeps your car compliant with regulations while avoiding costly part replacements.
When dealing with the P2201 error, understanding the specific code and its implications is crucial for maintaining vehicle performance. The P2201 code indicates that there is a problem with the NOx sensor circuit, which affects how the emissions control system manages exhaust gases. This code can often be linked to other emissions-related issues, potentially triggering more than one diagnostic trouble code. Using a reliable tool to clear the P2201 code and any related error codes helps in avoiding costly mechanical repairs and ensures the vehicle remains on the road without interruptions.