Audi Q7 Engine ECUs – 3.0 and 4.2 TDI, TFSI
Explore tested Audi Q7 engine ECUs for Q7 4L and 4M models, including control units for 3.0 TDI, 4.2 TDI and selected TFSI engines. Our range includes original ECU modules, primarily manufactured by Bosch, matched using the original part number.
Available options include IMMO OFF Plug & Play ECUs that do not require standard immobiliser matching, as well as units that require programming or individual preparation. Before ordering, compare the complete Bosch and Audi OEM numbers printed on the original ECU label.
Browse the Audi Q7 ECUs below or view our complete range of Audi engine control units.
List of products
0281014174 4L0910401G 4L0907401A Plug & Play engine controller Audi Q7 3.0 TDI – IMMO OFF
Engine control units for Audi Q7 4L and 4M
Audi Q7 vehicles use several different types of engine control unit, depending on the vehicle generation, engine, model year, equipment and software configuration. This collection mainly includes ECUs for the Audi Q7 4L with 3.0 TDI and 4.2 TDI engines, together with selected units for petrol TFSI engines and later Audi Q7 models.
We supply original Bosch engine ECUs and selected Continental control units. Depending on the product, the ECU may be supplied as an IMMO OFF Plug & Play unit, a module requiring programming, or a replacement prepared individually using data from the original controller.
Popular Audi Q7 3.0 TDI ECU part numbers
Audi Q7 3.0 TDI models were fitted with several Bosch EDC16 and EDC17 engine control units. Frequently searched Audi and Bosch ECU numbers include:
- 0281013691 / 4L0910401K – Audi Q7 3.0 TDI IMMO OFF Plug & Play ECU
- 0281015868 / 4L1910401D – Audi Q7 3.0 TDI IMMO OFF ECU
- 0281014174 / 4L0910401G / 4L0907401A – Audi Q7 3.0 TDI IMMO OFF ECU
- 0281012772 / 4L0907401 – Audi Q7 3.0 TDI engine ECU
- 0281012919 / 4L0907401
- 0281013298 / 4L0910401F
- 0281013320 / 4L0907401
- 0281013688 / 4L0910401N
- 0281013689 / 4L0910401M
- 0281013690 / 4L0910401L
- 0281014406 / 4L0910401R
- 0281014407 / 4L0910401S
- 0281014408 / 4L0910401T
- 0281014409 / 4L1910401
- 0281016832 / 4L1910401H
- 0281016834 / 4L1910401M
- 0281016835 / 4L1910401L
- 0281017727 / 4L1910401J
- 0281018301 / 4L2910401B
- 0281018302 / 4L2910401C
- 0281019323 / 4L2910401E
Engine ECUs may look identical and may have been fitted to vehicles with the same engine capacity, but they can still contain different hardware or software. A replacement unit should therefore not be selected using only the vehicle model, engine size or model year.
Audi Q7 4.2 TDI ECUs – Master and Slave system
The Audi Q7 4.2 TDI V8 uses two engine control units operating together as Master and Slave. These modules cannot be installed interchangeably. Both the complete part number and the intended position of the ECU must be confirmed before ordering.
Common Audi Q7 4.2 TDI ECU part numbers include:
- 0281013013 / 4L0910409 – Bosch EDC16CP34 engine ECU
- 0281015165 / 4L0910409D
- 0281017983 / 4L0910409H
- 0281018825 / 4L0910409M
- 0281031081 / 4L0910409T
A single replacement Master or Slave ECU will normally require programming and matching to the vehicle. We may also offer correctly prepared Master and Slave IMMO OFF Plug & Play sets that do not require standard immobiliser programming after installation.
For more information about this system, read our guide: Audi Q7 4.2 TDI Master and Slave EDC16CP34 ECU failure.
IMMO OFF Plug & Play or an ECU requiring programming?
The correct preparation method depends on the ECU part number and the condition of the original control unit:
- IMMO OFF Plug & Play – the immobiliser function is disabled in the ECU, so standard immobiliser matching is not required after installation.
- ECU requiring programming – the replacement control unit must be programmed and matched to the vehicle using suitable diagnostic equipment.
- ECU cloning – data from the original control unit is transferred to the replacement ECU, provided that the required data can still be read correctly.
Not every product in this collection is supplied in the same configuration. Always check the individual product name and description before ordering. If you are unsure whether you require an IMMO OFF unit, a programmable ECU or a cloning service, contact us before completing your purchase.
How to find the correct Audi Q7 engine ECU
An Audi Q7 engine ECU should primarily be selected using the part numbers printed on the original control unit. The vehicle model, engine capacity and model year alone are not sufficient to confirm compatibility.
Before ordering:
- Read the manufacturer number, such as the ten-digit Bosch number beginning with 0 281.
- Check the Audi OEM number, such as 4L0910401K or 4L1910401D.
- Compare both numbers with the numbers stated in the product listing.
- Check whether the ECU is supplied as IMMO OFF Plug & Play, requires programming or is intended for cloning.
- If you are uncertain, send us a clear photograph of the complete ECU label together with the vehicle VIN and engine details.
Matching the complete part numbers is the safest way to identify the correct engine control unit. ECUs that look the same or have numbers differing by only one letter are not necessarily interchangeable.
Common symptoms of an Audi Q7 engine ECU fault
A faulty engine control unit can cause several starting, communication and engine operation problems. Common symptoms include:
- the engine does not start,
- the starter operates but the engine will not run,
- no diagnostic communication with the engine ECU,
- CAN bus communication faults,
- cooling fans running continuously after the ignition is switched on,
- immobiliser faults or a SAFE warning,
- the engine cutting out while driving,
- fault codes appearing in several vehicle modules at the same time,
- visible moisture or corrosion on the ECU or its connectors.
These symptoms can also be caused by faults outside the engine control unit. Before replacing the ECU, check its power supplies, grounds, fuses, relays, CAN wiring and electrical connectors.
Water-damaged Audi Q7 4L engine ECUs
In Audi Q7 4L models, water collecting beneath the windscreen cowl is a common cause of engine ECU damage. Blocked drainage channels, moisture or incorrectly fitted covers can lead to corroded pins and internal electronics, short circuits, power supply damage or loss of CAN communication.
After replacing a water-damaged ECU, the source of the leak must be repaired. The cowl drains should be cleaned and the covers and connectors inspected. Otherwise, the replacement control unit may also become damaged.
Audi Q7 ECU fault guides
- 0281013691 / 4L0910401K – water-damaged Audi Q7 3.0 TDI ECU
- 0281015868 and 0281014174 – Audi Q7 ECU water-damage symptoms
- Audi Q7 4.2 TDI – Master and Slave EDC16CP34 ECU failure
Testing, warranty and international delivery
Each engine ECU is checked before dispatch and supplied with warranty coverage. We also provide technical assistance with identifying the correct part number and selecting the appropriate ECU configuration.
For estimated delivery times and available courier services, see our shipping costs and delivery information.
Orders can be paid for using the payment options available for the selected country and currency. See our payment methods for further information.
If you need an engine controller for a different Audi model, browse our full range of Audi engine ECUs.
FAQ – Audi Q7 engine ECUs
Is every Audi Q7 ECU supplied as Plug & Play?
No. Some engine control units are supplied as IMMO OFF Plug & Play modules, while others require programming or individual preparation. The configuration is stated in the individual product name and description.
Can I select an Audi Q7 ECU using only the model and engine size?
No. Audi Q7 vehicles with the same engine may use different ECU versions. The replacement unit should be selected using the complete Bosch number and Audi OEM number printed on the original ECU label.
Does an IMMO OFF ECU require immobiliser programming?
An ECU correctly prepared as IMMO OFF does not require standard immobiliser matching. Depending on the ECU version and vehicle equipment, other configuration checks may still be required.
Can a faulty Audi Q7 ECU be cloned?
Yes, provided that all required data can be read correctly from the original ECU. A complete clone may not be possible if the control unit has severe water damage, corrosion, a short circuit or damaged memory.
Does the Audi Q7 4.2 TDI use two engine ECUs?
Yes. The 4.2 TDI V8 uses Master and Slave engine control units. A single replacement module will normally require programming, while a correctly prepared Master and Slave set may be available as an IMMO OFF Plug & Play solution.
What should I send if I am unsure which ECU to order?
Send us a clear photograph of the complete original ECU label, the vehicle VIN and the engine details. This information allows us to check the correct part number and the appropriate preparation method.