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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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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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0281016383 A6429002900 ECU Engine controller MERCEDES 3.0 CDI VIRGIN RESET

0281016384 03L906022CB IMMO OFF ECU Engine controller VW T5 Transporter / Caravelle 2.0 TDI (Plug & Play)

0281016571 39113-2A560 IMMO OFF ECU ENGINE CONTROLLER KIA CEED 391132A560

0281016572 03L906019AL IMMO OFF ECU Engine controller AUDI A5 / A4 S4 B8 2.0 diesel

0281016640 8509036 ECU controller BMW 3.0 d 3 - 5 X3 335d X5 - 535D DDE8509036

0281016832 4L1910401H IMMO OFF ECU ENGINE CONTROLLER AUDI Q7 3.0 TDI PLUG & PLAY

0281016834 4L1910401M ECU ENGINE CONTROLLER AUDI Q7 3.0 TDI

0281016835 4L1910401L IMMO OFF ECU ENGINE CONTROLLER AUDI Q7 3.0 TDI NO PROGRAMMING REQUIRED

0281016876 39113-2A557 IMMO OFF ECU ENGINE CONTROLLER KIA CEED 391132A557

0281017021 8510841 ECU ENGINE CONTROLLER BMW 5 E60 E61 X5 E70 X6 E71 - 3.0 D DDE8510841

0281017065 8200935115 Renault Trafic 2.0 dCi – ECU engine control unit VIRGIN Plug & Play

0281017100 8511331 ECU ENGINE CONTROLLER BMW DDE8511331

0281017102 8511332 ECU ENGINE CONTROLLER BMW DDE8511332

0281017103 8511333 ECU ENGINE CONTROLLER BMW DDE8511333

0281017104 8511334 ECU ENGINE CONTROLLER BMW DDE8511334

0281017388 9666986880 IMMO OFF ECU ENGINE CONTROLLER EDC16C34 PEUGEOT CITROEN 1.4 1.6

0281017398 3D0907401H ECU Engine Controller VW Phaeton EDC17CP04

0281017434 39113-2A461 IMMO OFF ECU ENGINE CONTROLLER HYUNDAI I30 391132A461

0281017455 580135271J ECU ENGINE CONTROLLER veco Daily 2.3 TESTED

0281017695 39120-2A051 IMMO OFF ECU ENGINE CONTROLLER KIA SPORTAGE 391202A051

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?