Bosch MED17.1.1 Immo Off: VAG (Audi · Bentley · Lamborghini · Volkswagen)
Immo Off on the Bosch MED17.1.1 on the TC1797 processor control unit for vehicles of the VAG group: Audi, Bentley, Lamborghini, Volkswagen. Upload the dump — free analysis and check; apply the operation and download the ready file in your portal account.
Disabling the immobilizer in the ECU firmware — the engine starts without binding to a key and BCM.
| Operation | Immo Off |
|---|---|
| Control unit | Bosch MED17.1.1 |
| Car makes | VAG — Audi, Bentley, Lamborghini, Volkswagen |
| Processor (MCU) | TC1797 |
| Access / memory | INT EEPROM [TC1797] |
| INT FLASH | TC1797 |
| INT EEPROM | TC1797 |
| Method | Online, from the ECU memory dump (.bin) |
| Applicability check | Free |
| Checksums | Recalculated automatically |
| Result | A ready file to write to the unit |
Bosch MED17.1.1 Immo Off — 46 vehicles
Operation Immo Off is supported for the Bosch MED17.1.1 block on vehicles of the VAG group (Audi, Bentley, Lamborghini, Volkswagen). In the list: Audi Q3 RS, Lamborghini Huracan, Bentley Continental Gt, Volkswagen Touareg, Audi R8, Bentley Continental GTC, Audi A8, Bentley Flying Spur and 38 more variants. Upload the dump — the system detects the version and checks applicability for free.
| Make | Model | Version | Year |
|---|---|---|---|
| Audi | Q3 RS | 2.5 TFSI quattro 7AT | 2016 |
| Lamborghini | Huracan | 5.2 V10 Sterrato | 2023 |
| Bentley | Continental Gt | 4.0 V8 S TwinTurbo 8AT | 2014 |
| Volkswagen | Touareg | 4.2 V8 FSI 8AT | 2010 |
| Audi | R8 | 5.2 FSI Spyder Quattro | 2016 |
| Bentley | Continental GTC | 4.0 V8 S TwinTurbo 8AT | 2014 |
| Audi | A8 | 2.0 TFSI Hybrid | 2012 |
| Bentley | Flying Spur | 4.0 V8 S TwinTurbo 8AT | 2016 |
| Audi | Q5 | 2.0 16v TFSI Hybrid quattro | 2012 |
| Audi | RS3 Sportback | 2.5 TFSI quattro 7AT | 2016 |
| Audi | RS6 Avant | 4.0 V8 TFSI quattro Tiptronic 8AT | 2015 |
| Audi | RS7 | 4.0 V8 TFSI quattro Tiptronic 8AT | 2014 |
| Audi | S6 | 4.0 V8 TFSI Quattro S-Tronic 7AT | 2015 |
| Audi | S7 | 4.0 V8 32v TFSI Quattro S-Tronic 7AT | 2015 |
| Audi | S8 | 4.0 V8 32v TFSI | 2013 |
| Audi | A6 | 2.0 TFSI Hybrid | 2011 |
| Audi | Q3 RS Performance | 2.5 TFSI quattro 7AT | 2016 |
| Audi | RS3 | 2.5 TFSI Quattro 7AT | 2016 |
| Audi | RS4 Avant | 4.2 V8 FSI Quattro S-Tronic 7AT | 2012 |
| Audi | RS5 Cabriolet | 4.2 V8 FSI Quattro S-Tronic 7AT | 2012 |
| Audi | RS5 Coupe | 4.2 V8 FSI Quattro S-Tronic 7AT | 2010 |
| Audi | RS6 Avant Performance | 4.0 V8 TFSI quattro Tiptronic 8AT | 2015 |
| Audi | RS7 Performance | 4.0 V8 TFSI quattro Tiptronic 8AT | 2015 |
| Audi | A8 | 4.2 FSI Quattro Tiptronic 8AT | 2010 |
| Audi | Q3 RS | 2.5 TFSI quattro 7AT | 2013 |
| Audi | Q3 RS | 2.5 TFSI quattro 7AT | 2015 |
| Audi | Q5 | 2.0 16v TFSI Hybrid quattro | 2011 |
| Audi | R8 | 5.2 FSI Quattro | 2015 |
| Audi | R8 | 5.2 FSI Quattro Plus | 2015 |
| Audi | RS3 Sportback | 2.5 TFSI quattro 7AT | 2015 |
| Audi | RS6 Avant | 4.0 V8 TFSI quattro Tiptronic 8AT | 2013 |
| Audi | RS7 | 4.0 V8 TFSI quattro Tiptronic 8AT | 2013 |
| Audi | S6 | 4.0 V8 TFSI Quattro S-Tronic 7AT | 2012 |
| Audi | S7 | 4.0 V8 32v TFSI Quattro S-Tronic 7AT | 2012 |
| Audi | S8 | 4.0 V8 32v TFSI | 2012 |
| Bentley | Continental GTC | 4.0 V8 TwinTurbo 8AT | 2012 |
| Bentley | Continental Gt | 4.0 V8 GT3-R TwinTurbo 8AT | 2014 |
| Bentley | Continental Gt | 4.0 V8 TwinTurbo 8AT | 2012 |
| Bentley | Flying Spur | 4.0 V8 TwinTurbo 8AT | 2014 |
| Lamborghini | Huracan | 5.2 V10 EVO AWD | 2019 |
| Lamborghini | Huracan | 5.2 V10 EVO RWD | 2020 |
| Lamborghini | Huracan | 5.2 V10 LP580-2 | 2015 |
| Lamborghini | Huracan | 5.2 V10 LP610-4 | 2014 |
| Lamborghini | Huracan | 5.2 V10 Performante | 2017 |
| Lamborghini | Huracan | 5.2 V10 STO | 2021 |
| Lamborghini | Huracan | 5.2 V10 Tecnica | 2022 |
Bosch MED17.1.1 Immo Off — for VAG (Audi, Bentley, Lamborghini, Volkswagen)
Immo Off is disabling the immobilizer right in the engine control unit's firmware. After the operation the ECU stops checking the key tag against the BCM, CAS or EWS and starts the engine without binding to the car.
When you need Immo Off
- Installing a used (donor) unit — an ECU from another car is not matched to your key and BCM.
- Lost or broken keys — you need to start the engine while keys are being restored.
- Board repair or processor replacement — after servicing, the immobilizer binding is lost.
- Moving the ECU to a bench — starting the engine outside the car, without the factory security system.
What you get: the unit starts the engine without the immobilizer — the key tag and BCM are no longer checked.
Bosch MED17.1.1 memory and reading
The Bosch MED17.1.1 unit uses on the TC1797 processor the following: INT FLASH — TC1797, INT EEPROM — TC1797. The Immo Off operation works on the INT EEPROM [TC1797] area — that is the one to read out and upload. If OBD reading is not available for this unit, the dump is taken on the bench via Bench or Boot mode.
For the Bosch MED17.1.1 block on the TC1797 processor the «Immo Off» operation runs online from the ECU memory dump (access — INT EEPROM [TC1797]). Read the file via OBD, Bench or Boot and upload it — the system detects Bosch MED17.1.1 and checks whether the operation applies for free. You'll get the ready file with recalculated checksums in your portal account.
Frequently asked questions
Immo Off on Bosch MED17.1.1 — short and to the point
What does Immo Off do on Bosch MED17.1.1?
Disabling the immobilizer in the ECU firmware — the engine starts without binding to a key and BCM.
Which file should I upload?
The ECU memory dump (access INT EEPROM [TC1797]), read via OBD, Bench or Boot. Upload the file — the system detects Bosch MED17.1.1 for free and checks whether the operation applies.
How much does Immo Off cost?
Uploading and analyzing the file is free. Applying the operation and downloading the ready file happen in your portal account (50 €).
Are the checksums recalculated?
Yes, automatically. The ready file is immediately writable to the unit — no need to recalculate checksums by hand.
Which vehicles is it for?
Bosch MED17.1.1 with the Immo Off operation covers VAG group vehicles (Audi, Bentley, Lamborghini, Volkswagen). The system detects the exact version from the uploaded dump.
What memory and processor does Bosch MED17.1.1 use?
The unit is built around the TC1797 processor. Memory of the unit: INT FLASH — TC1797, INT EEPROM — TC1797. The Immo Off operation needs INT EEPROM [TC1797] access.