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Ecusale – engine ECUs for all car brands, petrol and diesel

ECUSALE – Engine controllers and automotive electronics

Looking for a reliable engine controller?
At ECUSALE you will find ready-to-install ECU ENGINE CONTROLLER – Plug & Play, VIRGIN and IMMO OFF solutions.

ECUSALE specializes in the sale and preparation of engine controllers for passenger cars and vans.

We offer used and professionally refurbished units, all of which undergo full quality control and functional testing. Every module is verified in our workshop, and selected units are also tested in real vehicles to ensure 100% performance.

  Shipping within 24h – delivery across the EU in 2–3 working days.

Most units are prepared as Plug & Play, meaning quick installation without additional programming. We also offer VIRGIN and IMMO OFF versions, ready for easy adaptation.

Thanks to this, many customers save time and avoid additional workshop costs.

Selection is based on the part number, ensuring full compatibility and trouble-free operation.

Blog:
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  • Basic Information 22-05-2026

    Audi Q7 3.0 TDI Water Damaged Engine ECU| 4L1910401D & 4L0910401G IMMO OFF Plug & Play

    Audi Q7 3.0 TDI won’t start after heavy rain? The engine ECU could be water damaged

    One of the most common failures in the Audi Q7 3.0 TDI is water damage affecting the Bosch EDC17CP04 engine ECU. This issue frequently impacts units 0281015868 and 0281014174, which are mounted beneath the windscreen scuttle panel, an area highly exposed to moisture and blocked drainage channels that can lead to corrosion inside the ECU.

    In this article, we explain the typical symptoms of a failed Audi Q7 3.0 TDI engine control unit, when ECU cloning is still possible, and why in many situations an IMMO OFF Plug & Play solution is the fastest and most reliable repair option.

    0281015868 & 0281014174 – common ECU failures in the Audi Q7 3.0 TDI

    Learn why engine ECUs such as 4L1910401D and 4L0910401G are especially vulnerable to water ingress, which fault codes usually appear during diagnostics, and how professional ECU repair or replacement is performed for the Audi Q7 3.0 TDI.

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  • Basic Information 13-05-2026

    Water-Damaged Bosch 0281013691 / 4L0910401K ECU – Common Audi Q7 3.0 TDI Engine Control Unit Failure

    Water Damage in Bosch 0281013691 / 4L0910401K ECU – A Common Audi Q7 3.0 TDI Failure

    The Bosch 0281013691 / 4L0910401K engine control unit fitted to the Audi Q7 3.0 TDI 4L is well known for being vulnerable to water damage. In many cases, the issue is caused by the ECU’s location beneath the windshield cowl, where moisture and rainwater can accumulate over time due to blocked drainage channels.

    Symptoms of a failing ECU may appear gradually or occur suddenly after heavy rain, a car wash, or long periods of vehicle inactivity. Common signs include no communication with the engine control module, intermittent or complete no-start conditions, CAN bus communication faults, and in severe cases, a completely dead ECU in the Audi Q7 3.0 TDI.

    Similar problems frequently affect other Bosch EDC16CP34 units installed in the same location, including 0281012772 / 4L0907401, 0281012919 / 4L0907401, 0281013689 / 4L0910401M, and 0281013690 / 4L0910401L. These engine control units share nearly identical hardware architecture, with the main differences relating to software versions and vehicle-specific configuration used across different Audi Q7 3.0 TDI variants.

    In this article, we explain the most common failure symptoms of the 0281013691 / 4L0910401K ECU, the typical causes of water intrusion, CAN communication issues, and a practical solution in the form of a ready-to-install IMMO OFF Plug & Play engine ECU that works without immobilizer programming or data cloning.

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