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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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0261S02096 8E0910115B IMMO OFF ECU ENGINE CONTROLLER AUDI A4 2.0 TFSI

0261S02100 06F906056DJ IMMO OFF ECU ENGINE CONTROLLER VW TOURAN 2.0

0261S02155 06F906056DN IMMO OFF ECU ENGINE CONTROLLER VW JETTA 2.0 FSI

0261S02263 06F906056FF IMMO OFF ECU ENGINE CONTROLLER VW PASSAT JETTA 2.0 FSI

0261S02363 4F2910115D IMMO OFF ECU ENGINE CONTROLLER AUDI A6 S6

0261S02416 8E0910115R IMMO OFF ECU ENGINE CONTROLLER AUDI A4 S4 2.0

0261S02467 4F2910115H IMMO OFF ECU ENGINE CONTROLLER AUDI A6

0261S02546 03C906056EN IMMO OFF ECU ENGINE CONTROLLER VW GOLF V

0261S02560 4F2910115L IMMO OFF ECU ENGINE CONTROLLER AUDI A6 S6

0261S02610 4E1910560J ECU ENGINE CONTROLLER AUDI A8 S8 4.2

0261S04008 9664738780 MEV17.4 IMMO OFF Plug & Play Peugeot Citroën 1.4 1.6 ECU engine control unit

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

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

0261S04158 7641003 ECU ENGINE CONTROLLER MINI COOPER S 1.6 1.4 DME7641003

0261S04163 7584113 ECU ENGINE CONTROLLER MINI COOPER S 1.6 1.4 DME758411301

0261S04348 03C906027G IMMO OFF ECU ENGINE CONTROLLER VW GOLF VI

0261S04377 8P0907115AH IMMO OFF ECU ENGINE CONTROLLER AUDI A3 S3

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

0261S04417 8K2907115M IMMO OFF ECU ENGINE CONTROLLER AUDI A4 S4 2.0 TFSI

0261S04418 8K2907115N IMMO OFF ECU ENGINE CONTROLLER AUDI A4 S4 2.0 TFSI

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?