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!
Play Video
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
P0403 EXHAUST GAS RECIRCULATION CIRCUIT MALFUNCTION – 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 P0403 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
2024
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!
Play Video
Play Video
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 system
Completely disables EGR valve
Completely disables Swirl Flaps in the intake manifold
Completely disables Diesel
Particular Filter
Particular 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.
$
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
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.
Solve your problem quickly and conveniently, no matter where you are!
Delivery Information
We offer worldwide shipping through our partnerships with EMS Express, 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 3-7 working days
DHL Express
Deliver the parcel for 3 working days
EMS Express
Typically delivery takes 1-2 weeks
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
Customs will not delay your parcel, because you receive a «scanning tool» worth $50. That's it, no extra taxes!
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 P0403 code is a common diagnostic issue faced by vehicle owners, particularly those driving Mercedes models. When the P0403 code appears, it typically indicates a circuit malfunction in the exhaust gas recirculation system. This code may cause the check engine light to activate, signaling that the system is not functioning correctly. Addressing the P0403 code often involves examining the circuit, solenoid, and other related components for faults. In many cases, the P0403 code can be cleared without replacing expensive parts, making it a more practical solution. Vehicles displaying the P0403 code may also experience performance issues due to improper gas recirculation. Our tool efficiently clears the P0403 code, restoring normal engine functionality and preventing further complications. Proper handling of the P0403 code ensures that the vehicle operates smoothly without unnecessary downtime. Identifying the root cause of the code is crucial, but our solution simplifies the process by quickly resolving the issue.
When the P0403 code is detected, it often points to a specific issue within the circuit, and resolving the P0403 code correctly ensures that the engine management system operates as intended, preventing the P0403 code from recurring and allowing the vehicle to clear any related trouble codes effectively.
“`htmlThe P0403 code, often referred to as a circuit malfunction code, is one of the most frequently reported trouble codes in vehicles, especially Mercedes models, and diagnosing the P0403 code requires careful analysis of the EGR system, as this specific code may be linked to multiple related codes, making the P0403 code a critical indicator for addressing exhaust gas recirculation issues; ignoring the P0403 code or misinterpreting its related codes can lead to further engine complications, which is why resolving the P0403 code promptly and accurately is essential for clearing all associated codes and ensuring smooth engine performance.
