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Engine Control Units (ECUs) – Car Engine Computers

Blog about ECU Engine Controllers and Automotive Electronics
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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.

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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.
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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.

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Engine Control Units (ECUs) – Car Engine Computers

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A6461500677 0281014188 VIRGIN ECU ENGINE CONTROLLER MERCEDES 2.2 CDI CR4.20

A6461500477 0281014202 VIRGIN ECU ENGINE CONTROLLER MERCEDES 2.2 CDI CR4.20

A6461500278 0281012825 VIRGIN ECU ENGINE CONTROLLER MERCEDES VITO VIANO 2.2 CDI - CLEAR

A6461500178 0281012824 VIRGIN ECU ENGINE CONTROLLER MERCEDES VITO VIANO 2.2 CDI - CLEAR

A6461500000 0281015918 VIRGIN ECU ENGINE CONTROLLER MERCEDES 2.2 CDI CR4.20

A6429009801 0281036317 ECU engine controller Mercedes 3.0 CDI CR6.29

A6429009400 0281017365 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.20

A6429007301 0281031183 ECU Engine controller MERCEDES 3.0 CDI V6 CR6.1 BOSCH

A6429003900 0281016337 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.30

A6429003800 0281016336 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.30

A6429000000 0281015954 ECU Engine controller Mercedes GL X164 3.0 CDI VIRGIN

A6421531079 0281013394 ECU Engine Controller Mercedes-Benz 3.0 CDI CR4.30 Virgin

A6421509878 0281013758 VIRGIN ECU ENGINE CONTROLLER MERCEDES 3.0 CDI CR4.12

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

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

A6421508900 0281016656 ECU engine controller Mercedes 3.0 CDI VIRGIN

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

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

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

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

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?