8N0 906 018 BR / 0261208005 – Audi TT 8N 1.8T engine ECU IMMO OFF Plug & Play
Original Bosch Motronic ME7.5 engine control unit with part numbers 8N0 906 018 BR and 0 261 208 005, used in selected versions of the first-generation Audi TT equipped with the turbocharged 1.8T petrol engine. The offered module is prepared as IMMO OFF Plug & Play.
Applications of ECU 8N0906018BR
This ECU reference has been confirmed for selected Audi TT 8N versions with the 1.8 Turbo engine.
- Audi TT 8N / 8N3 Coupé – 1.8T petrol,
- ARY engine – confirmed application of ECU 8N0906018BR,
- confirmed use in vehicles from around 2003; for other model years, compatibility should be checked using the ECU part numbers.
Before ordering, compare Audi part number 8N0 906 018 BR and Bosch number 0261208005 with the control unit originally fitted to the vehicle. Matching only the Audi TT model or 1.8T engine capacity is not sufficient to confirm full compatibility.
Common symptoms of a faulty engine ECU
Problems with a Bosch ME7.5 ECU can have different causes, and faults in the vehicle electrical system should be ruled out before replacing the module.
- no diagnostic communication with the engine control unit,
- engine will not start even though the starter motor operates correctly,
- engine stalls unexpectedly or is difficult to restart,
- uneven or unstable operation of the 1.8T engine,
- recurring ignition or injection control faults,
- internal ECU memory or electronic faults.
Similar symptoms can also be caused by faulty power supplies, ground connections, wiring, fuses, sensors or actuators. A complete vehicle diagnosis is therefore recommended before replacing the ECU.
Programming, cloning and ECU preparation
A standard used engine ECU may require immobiliser data transfer or synchronisation with the vehicle. Depending on the condition of the original ECU, it may also be possible to clone the relevant memory data to a replacement module.
This unit is prepared as IMMO OFF Plug & Play. The immobiliser function in the ECU is modified before dispatch, so standard adaptation of the used ECU to the vehicle immobiliser is not required.
- IMMO OFF preparation is completed before dispatch,
- standard immobiliser-to-ECU pairing is not required,
- the control unit is tested before shipping,
- data cloning is possible if the original ECU can still be read correctly,
- after installation, clearing stored fault codes and carrying out a new diagnostic scan is recommended.
Frequently asked questions – Audi TT 8N ECU 8N0906018BR
Does ECU 8N0906018BR fit the Audi TT 8N 1.8T?
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Yes. Part number 8N0 906 018 BR is used in selected Audi TT 8N versions with the 1.8 Turbo petrol engine. Before ordering, the Bosch number on the original ECU should also be compared.
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Is Bosch 0261208005 suitable for an Audi TT 1.8T with the ARY engine?
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Bosch number 0261208005 together with Audi reference 8N0906018BR has been confirmed for selected Audi TT 1.8T vehicles with the ARY engine code. The most important step is still to compare the complete part numbers of both ECUs.
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Does ECU 0 261 208 005 IMMO OFF require coding after installation?
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The offered version is prepared as IMMO OFF Plug & Play, so standard synchronisation of the used ECU with the immobiliser is not required. However, compatibility of the ECU version with the vehicle should be confirmed beforehand.
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How can I check whether a Bosch ME7.5 ECU will fit my Audi TT?
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Read the label on the original ECU and compare primarily the references 8N0 906 018 BR and 0 261 208 005. Selecting the control unit only by Audi TT model and 1.8T engine capacity may not be sufficient.
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Can ECU 8N0 906 018 BR be cloned from the original control unit?
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If the damaged original ECU still allows the required memory data to be read correctly, a replacement unit can be prepared by transferring the relevant contents. In this offer, however, the module is supplied as standard in IMMO OFF Plug & Play configuration.
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