Engine ECU 0261S04009 / 9665291180 IMMO OFF – MED17.4 for Peugeot 207 and Citroën C4 1.6
We offer a fully functional engine ECU Bosch 0261S04009 with OEM number 9665291180, used in Peugeot and Citroën vehicles equipped with the 1.6 petrol engine. The ECU has been prepared in IMMO OFF mode, meaning that the immobilizer is completely disabled and the module requires no programming, key coding or PIN access.
The IMMO OFF version works immediately after installation, making it an ideal solution for a damaged ECU, immobilizer faults, unreadable PIN, or BSI/BSM failure. The unit has been fully bench-tested to ensure correct operation and is ready for installation.
Which vehicles use ECU 0261S04009 / 9665291180?
This ECU is used in PSA group vehicles with the 1.6 engine (TU5 / 16V series):
- Peugeot 207 1.6 – 2006–2012
- Peugeot 307 (selected 1.6 versions) – 2005–2008
- Citroën C4 1.6 – 2005–2010
- Citroën C2 / C3 (selected 1.6 versions) – 2006–2011
For full compatibility, the ECU number should match 0261S04009 or 9665291180.
Will ECU 0261S04009 / 9665291180 work without programming?
Yes. This ECU is prepared in IMMO OFF mode, meaning it starts immediately after connection with no adaptation or immobilizer programming.
Which models use the MED17.4 ECU with this number?
The module is used in PSA vehicles with the 1.6 engine, including Peugeot 207, Peugeot 307, Citroën C4 and selected C2/C3 versions from 2005–2012, depending on equipment and hardware.
Does the part number need to match the old ECU?
Yes, for full compatibility the numbers 0261S04009 or 9665291180 should be identical to the original ECU of your vehicle.
When is an IMMO OFF ECU useful?
IMMO OFF is ideal when the immobilizer system is damaged, there is no communication with the BSI, the PIN cannot be read or the original ECU blocks engine start.
What symptoms indicate a damaged original ECU?
Common problems include no spark, irregular engine operation, throttle control errors, no OBD communication, or the engine starting briefly and stalling.