Engine ECU 06F906056FB Bosch MED9.5.10 – VW Passat B6 2.0 FSI IMMO OFF
Original engine control unit for selected Volkswagen Passat B6 models equipped with the 2.0 FSI petrol engine. The module with Bosch part number 0261S02261 is prepared as IMMO OFF Plug & Play, which means the immobiliser function stored in the ECU does not prevent the engine from starting.
Applications of ECU 0261S02261
Confirmed applications include selected Passat B6 2.0 FSI versions with an output of 110 kW:
- Volkswagen Passat B6 3C2 – saloon, 2.0 FSI, approximately 11/2005–07/2010,
- Volkswagen Passat B6 Variant 3C5 – estate, 2.0 FSI, approximately 11/2005–11/2010.
Before ordering, compare part number 06F906056FB and Bosch number 0261S02261 with the references on the original engine ECU. Different software versions may be used within the same vehicle model and engine variant, so matching the ECU part numbers is the most important compatibility criterion.
Common symptoms of a faulty engine ECU
ECU faults can cause different symptoms depending on the type of failure. Common signs include:
- engine will not start,
- no diagnostic communication with the engine control unit,
- ECU checksum fault, for example P0601,
- fault codes indicating an internal ECU malfunction,
- intermittent starting problems or loss of communication with the module.
Before replacing the ECU, it is also advisable to check the vehicle wiring, power supply, ground connections and CAN communication, as similar symptoms may be caused by faults outside the engine control unit itself.
IMMO OFF, programming and ECU preparation
The offered ECU is prepared as IMMO OFF Plug & Play. This means that the immobiliser lock within the ECU is disabled, so the standard immobiliser-to-engine ECU synchronisation is not required after installation.
Depending on the software version and vehicle equipment, additional configuration or coding of vehicle-specific functions may still be required. IMMO OFF only concerns the engine-start immobiliser function and does not automatically transfer or modify the complete vehicle configuration.
If the original ECU can still be read correctly, we can also provide an ECU cloning service. This involves transferring the relevant data from the original ECU to the replacement unit, allowing the vehicle-specific configuration to be retained.
Frequently asked questions
Is the 06F906056FB ECU for VW Passat B6 2.0 FSI Plug & Play?
Yes. The offered unit is prepared as IMMO OFF Plug & Play. The immobiliser function in the ECU is disabled, so standard immobiliser adaptation is not required after installation.
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Does Bosch 0261S02261 fit every Volkswagen Passat B6 2.0 FSI?
The ECU should not be selected only by vehicle model and engine capacity. Bosch number 0261S02261 and VW part number 06F906056FB should match the references on the original ECU.
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Does the MED9.5.10 IMMO OFF ECU require coding after installation?
Immobiliser synchronisation is not required to start the vehicle. However, if the software version or equipment configuration differs from the original ECU, additional coding may be necessary.
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Can the 0 261 S02 261 ECU be cloned from the original Passat ECU?
Yes. If the data from the damaged original ECU can be read correctly, it is possible to create a clone and transfer the required data to the replacement control unit.
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How can I check whether 06F 906 056 FB is compatible with my Passat 2.0 FSI?
The most reliable method is to compare the references printed on the label of the original ECU. For this module, the key numbers to check are 06F906056FB and 0261S02261.
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