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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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28306980 BG91-12A650-SF ECU ENGINE CONTROLLER DCM3.5 FORD BG9112A650SF

28334098 BG91-12A650-SJ ECU ENGINE CONTROLLER DCM3.5 FORD BG9112A650SJ

0261201541 03C906032H IMMO OFF ECU ENGINE CONTROLLER VW GOLF TOURAN

0261201320 03C906032B IMMO OFF ECU ENGINE CONTROLLER VW GOLF V

0261201959 8K1907115C IMMO OFF ECU ENGINE CONTROLLER AUDI A4 S4 1.8

0261S02073 03C906056AM IMMO OFF ECU Engine controller VW TOURAN

0261201771 03C906032P ECU Engine controller VW Golf V 1.4/1.6 Benzin IMMO OFF Plug & Play ECU

8200391957 0281011486 VIRGIN ECU Engine Controller 3.0 dCi for Renault Master, Opel Vivaro, Renault Trafic and Renault Mascott – Plug & Play 8200362918

0281011277 8200391957 Virgin ECU Engine Controller Master Trafic Vivaro Mascott 8200404535 Plug & Play

0261S02042 03C906056AH IMMO OFF ECU ENGINE CONTROLLER VW TOURAN GOLF

0261S04399 03C906022AL IMMO OFF ECU Engine controller VW AUDI SEAT

A6461503378 0281013459 VIRGIN ECU ENGINE CONTROLLER MERCEDES 2.2 CDI

0281012052 8200391957 VIRGIN ECU ENGINE CONTROLLER MASTER VIVARO TRAFIC MASCOT

0281012200 8200391957 VIRGIN ECU Engine Master Trafic Vivaro Mascott Plug & Play

0281014208 8200666516 VIRGIN Plug & Play ECU engine controller Renault Master Vivaro Trafic Mascott

0281012658 8200666516 VIRGIN ECU engine controller Trafic Vivaro Primastar Plug & Play

55598089 ABXA VIRGIN ECU ENGINE CONTROLLER 12636386 OPEL CORSA D 1.0 CLEAR CAR PASS

0261S07732 03C907309Q IMMO OFF ECU ENGINE CONTROLLER VW Tiguan 1.4 MED17.5.5

8200303367 0281011486 VIRGIN ECU Engine Controller Master Vivaro Trafic Mascott 3.0 dCi Plug & Play

12230740 DTXW Virgin ECU Engine Controller for Opel Astra and Zafira 1.6 MT35E with PIN Code

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?