ECU Engine controller Seat Leon 1.8 TSI 1P0907115P 1P0907115A Bosch 0261S04319 MED17.5 1039S26747
Which Seat Leon versions use ECU 1P0907115P / 1P0907115A?
This ECU Engine controller with part numbers 1P0907115P and 1P0907115A is listed for selected Seat Leon 1.8 TSI petrol applications. The safest way to confirm compatibility is to match the exact numbers on your original ECU label.
You may also see the same number written with spaces (for example 1P0 907 115 P), which is simply another label format for 1P0907115P.
What does Bosch ECU 0261S04319 do in a Seat Leon 1.8 TSI?
The engine ECU manages key engine functions while you drive. It processes sensor data and controls essential operating parameters so the Seat Leon 1.8 TSI runs smoothly and consistently.
Markings like Bosch 0261S04319 and MED17.5 help identify the unit, but the most important match points are the part numbers 1P0907115P and 1P0907115A.
Why do both 1P0907115P and 1P0907115A appear for the same Seat Leon ECU?
It is common to find more than one reference for a similar ECU type, such as 1P0907115P and 1P0907115A. This can be related to production versions, revisions, or different variants used across the model range.
Before ordering, compare every label line, including 1P0907115P / 1P0907115A and Bosch 0261S04319.
Common symptoms of a faulty Seat Leon ECU (MED17.5)
A faulty ECU can cause hard starting, rough running, power loss, stalling, or a Check Engine light. You may also see inconsistent fault codes or diagnostic communication issues.
This ECU is offered as a tested unit with warranty and fast shipping.
Does ECU 1P0907115P require coding or adaptation after installation?
Depending on the vehicle version and its electronics, ECU replacement may require adaptation/coding after installation so it can work correctly with other modules.
Exact matching of 1P0907115P, 1P0907115A and Bosch 0261S04319 makes installation easier and helps ensure correct operation.