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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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0261S04009 9665291180 IMMO OFF ECU ENGINE CONTROLLER MED17.4 PEUGEOT 207 CITROEN C4 1.6

55562549 FHAW VIRGIN ECU ENGINE CONTROLLER OPEL ASTRA ZAFIRA 1.6 MT35E

55561172 FCDB VIRGIN MT35E Engine ECU for Opel Astra H Zafira B 1.6 with Car Pass

12230740 FAHF VIRGIN ECU ENGINE CONTROLLER OPEL ASTRA ZAFIRA 1.6 MT35E

28020960 VIRGIN ECU ENGINE CONTROLLER OPEL ASTRA ZAFIRA 1.6 MT35E

55561172 FFFT MT35E VIRGIN Engine ECU for Opel Astra H Zafira B 1.6 with PIN Code

55561172 FDMP MT35E VIRGIN Engine ECU Opel Astra H Zafira B 1.6 Car Pass

55562549 FHDP VIRGIN ECU ENGINE CONTROLLER OPEL ASTRA ZAFIRA 1.6 MT35E

55562549 FJBZ VIRGIN ECU ENGINE CONTROLLER OPEL ASTRA ZAFIRA 1.6 MT35E

51926691 IAW 5SF8.CP ECU engine controller Fiat Panda 1.2 8V Virgin Plug & Play

0261S05626 9666934280 IMMO OFF ECU Engine Controller Citroën Peugeot 1.6 VTi Plug & Play

0281010488 1329236080 Fiat Ducato / Peugeot Boxer 2.3 JTD ECU engine controller IMMO OFF Plug & Play

03L906018FL 0281017156 ECU Engine controller IMMO OFF Seat Altea XL 2.0 TDI PLUG&PLAY

0281010486 1327518080 ECU Engine Controller Fiat Ducato Peugeot Boxer 2.8 JTD Immo Off Plug & Play

0261S04026 9664618380 – ECU engine control unit Peugeot 207 207 CC 1.6 VTi MEV17.4 Virgin Plug & Play

51875963 VIRGIN Plug & Play ECU engine controller Alfa Romeo Mito 1.4 16V Turbo 135KM 8GMF.A4

51903129 ECU engine controller VIRGIN Plug & Play Fiat 500 0.9 TwinAir 85 KM IAW 8GSF.H9

8K1907115A 0261201960 ECU engine controller Audi A4 B8 1.8 TFSI Bosch MED17.5

8K5907115H 0261S07024 ECU engine controller Audi A4 B8 2.0 TFSI Bosch

A1351502379 1860A372 ECU Engine controller Smart ForFour 1.3 E6T42487 H4ZE

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?