+48 888 638 546

sale@ecusale.com

Your cart is empty

Engine Control Units (ECUs) – Car Engine Computers

Blog about ECU Engine Controllers and Automotive Electronics
Go to the Blog

AdBlue Fault or SCR Problem – NOx Errors, No-Start Countdown & Solutions

ECU Diagnostics and Repair 19-08-2026

AdBlue, SCR or NOx Problem?

Is your vehicle counting down the remaining miles or kilometres until the engine can no longer be restarted, showing an AdBlue warning after refill, or reporting a NOx sensor fault?

In our guide, we explain the most common AdBlue problems, typical SCR and NOx faults, supported ECU types and available service options for vehicles such as Fiat Ducato, Peugeot Boxer, Citroën Jumper / Relay, Iveco Daily, VW T6, BMW and many others.

You can also find out how AdBlue OFF at our workshop, sending your own ECU to us, or purchasing a prepared replacement ECU works.

Read more
EcuSale 0
BMW ECU Contaminated with Diesel Fuel? 2.0 Diesel ECU Repair

ECU Diagnostics and Repair 02-08-2026
BMW 2.0 Diesel ECU Contaminated with Fuel – What Should You Do?

Starting problems, no communication with the ECU or diesel fuel visible inside its connector may indicate an electronic fault in the BMW engine control unit.

In this guide, we explain:
- why diesel fuel can enter the engine ECU,
- the most common symptoms and fault codes,
- which components should be checked or replaced before refitting a repaired ECU,
- how ECU repair, cloning and programming are carried out,
- the differences between ECUs for vehicles with and without AdBlue,
- which tested BMW engine ECUs are available for sale.
Read the full guide to learn how to prevent a repaired or replacement ECU from being contaminated and damaged again.
Read more
ECUSale - Technical Team 0

Automotive Electronics Manufacturers

ECU Engine Controllers, ABS Pumps, BCM Modules and automotive electronics.

1. Are the products tested before shipping?

Yes, every ECU engine controller, BSI module, BCM module, ABS module, transmission control unit, and other automotive electronic module is electronically tested before shipment. Each unit is checked for proper communication and correct operation to ensure you receive a fully tested product ready for installation.

2. Does the ECU engine controller require programming or coding after installation?

Whether programming or coding is required depends on the version of the product. We offer VIRGIN, IMMO OFF, and Plug & Play ECU engine controllers. Information about any required programming or coding is always clearly stated in the product description. In many cases, the unit can be installed and used without any additional coding or adaptation.

3. How do I choose the correct part for my vehicle?

The most important step is to compare the part numbers found on your original unit. Pay special attention to the Bosch, Siemens, Magneti Marelli, Continental, or vehicle manufacturer's OEM part number. If you are unsure, simply send us a photo of your existing module or provide your vehicle's VIN, and our specialists will help you identify the correct part.

4. Are the products covered by a warranty?

Yes, all ECU engine controllers, ABS modules, BCM modules, BSI modules, transmission control units, and other automotive electronic modules offered in our store are covered by a warranty. Every product is carefully tested and prepared before shipment. If you experience any issues, our technical support team is available to assist with diagnostics and help resolve the problem quickly and efficiently.

5. What payment methods are available in the store?

We offer secure online payments processed through Stripe and PayPal. Customers can pay using a credit or debit card, Apple Pay, Google Pay, Klarna, online banking payments, or a traditional bank transfer. After placing an order, you will receive a secure payment link to complete your purchase safely and conveniently.

We respect your privacy

We use cookies and similar technologies to remember your settings, show you personalized content and ads, and provide social media features. We also use cookies to measure traffic and analyze how our website is used.

By default, only the cookies that are necessary for the site to function properly are enabled. Below, you can accept all types of cookies by clicking "Accept all", or refuse their use (except essential cookies). You can also customize cookies to your needs by selecting "Customize consents". You can withdraw or change your consent at any time by clicking the "Cookie settings" link at the bottom of the page.

Details about the cookies we use and the principles of processing personal data can be found in the Privacy Policy.

Allow only necessary

Customize consents

Allow all

Cookie settings

Here you can specify your preferences regarding the use of cookies placed by us and external service providers whose services we have added to our site.

These are computer data saved and stored by the browser, which are required for the proper operation of the online store. They are usually installed only in response to your actions, such as: specifying privacy settings, adding a product to the basket, logging in, selecting payment methods and collection points. You can set your browser to block or warn you about these files, but blocking them will prevent the site from functioning. Necessary cookies do not store any personal data that allows for identification.

They allow us to personalize the site and remember previously selected settings. They can be set by us or by external service providers, in the event that we extend the functionality of our store with various add-ons and integrations. Rejecting these files will not affect the correct operation of the store, but some useful functions will be unavailable to you.

They allow us to count visits and traffic sources. This allows us to analyze how our site is navigated and improve its performance. We can also check the popularity of our products and improve the offer. The data collected is completely anonymous and does not allow for the identification of specific users. If you do not allow these files, we will not know when you visit our site and we will not be able to ask you to express your opinion about purchases.

Data used by the store software provider - Shoper S.A. They are used to perform analyses related to software development and measure the effectiveness of advertising campaigns. They are not combined with other information provided during registration and ordering. You can read more about this in Shoper Cookie Policy.

They allow us to better tailor the displayed advertising content to your interests and promote our products on other websites you visit. Marketing cookies do not store personal data. They are based on the unique identification of your browser and internet device. If you do not allow their use, ads will still be displayed, but they will not be personalized based on cookie data.

Cancel

Save preferences

Engine Control Units (ECUs) – Car Engine Computers

Subcategories

Chosen Filters

Price

Vendor

List of products

A6421501600 0281015305 – Virgin Engine ECU Mercedes 3.0 CDI CR4.30

A6421502330 0281015916 VIRGIN ECU ENGINE CONTROLLER MERCEDES SPRINTER W209 3.0 CDI

A6421502434 0281014432 Mercedes W204 3.0 CDI ECU Engine controller VIRGIN

A6421502530 0281015917 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.20

A6421502677 0281013975 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421502877 0281013977 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CR4.12

A6421504141 0281015135 ECU engine controller Mercedes 3.0 CDI CR4.30 Virgin

A6421505300 0281015624 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.30

A6421505372 0281014343 VIRGIN ECU Engine controller MERCEDES 3.0 CDI CR4.20

A6421505734 0281014933 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421505877 0281013947 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421506091 0281013343 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.11

A6421506179 0281012416 ECU Engine controller VIRGIN Mercedes 3.0 CDI CR4.12 OM642 ECU Bosch

A6421506600 0281015637 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421506677 0281013952 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421506734 0281014943 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421507034 0281014946 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

A6421508900 0281016656 ECU engine controller Mercedes 3.0 CDI VIRGIN

A6421508978 0281013708 ECU engine controller VIRGIN Mercedes CLS C219 320 CDI 3.0 OM642

A6421509500 0281015664 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.30

Ecu Controller SID208

Ecu Controller Audi Q7

Ecu Controller 1.3 CDTI Corsa

Ecu Controller Ford DCM3.5

Blog about ECU Engine Controllers and Automotive Electronics Go to the Blog

AdBlue Fault or SCR Problem – NOx Errors, No-Start Countdown & Solutions

AdBlue, SCR or NOx Problem?

BMW ECU Contaminated with Diesel Fuel? 2.0 Diesel ECU Repair

BMW 2.0 Diesel ECU Contaminated with Fuel – What Should You Do?