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Porsche Cayenne 3.6 FSI original file Bosch MED91 HW 0261S02365 · 03H906032M · SW 387734
2005, Petrol, 213.3 kW (290 hp)
This is the factory calibration of the 2005 Porsche Cayenne 3.6 FSI (213.3 kW, 290 hp), for its Bosch MED91 ECU with hardware 0261S02365, part number 03H906032M and software 387734 (1037387734). Use it to put the car back to standard, to recover the ECU after a failed write, or as the base of a tune of your own.
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Every file for this software
The original and the tunes we sell for software 387734, each made from the same read.
| File | Price | Buy |
|---|---|---|
| Original this page | £6.99 | Add to cart |
| Stage 1 | £21.99 | Add to cart |
| Stage 2 | £24.99 | Add to cart |
About this file
An original holds every map as the factory wrote them: ignition, fuelling and the torque limits, the speed limiter and the emissions controls. Tuners start a file from it; workshops use it to put a car back to standard.
The file is listed for the 213.3 kW, 290 hp version of the Porsche Cayenne 3.6 FSI. Check the power on your car's papers: the same model was sold with several engines, each with its own file.
For software 387734 of the Porsche Cayenne 3.6 FSI we sell the original, Stage 1 and Stage 2, each made from the same original read. Every file downloads straight after payment.
Read the Bosch MED91 ECU with your usual tool and keep the read: compare its hardware and software numbers with the ones on this page before you write the file.
DTC off and speed limiter (Vmax) off can be built on this file on request, for off-road and competition use: send us your read through our file service and our engineers add them (any file £50, from £30 in packs).
Hardware 0261S02365 is the number on the Bosch ECU's label. Software 387734 (1037387734) is the calibration inside it: a read with hardware 0261S02365 and another software number needs a different file. Part number 03H906032M is the car maker's number for this ECU.
How the Bosch MED91 is read
With your usual tool, over OBD or on the bench as the tool allows. Ask us on WhatsApp if you are not sure.
- Read the ECU and keep the read: it is your way back.
- Match the numbers: hardware 0261S02365, part number 03H906032M and software 387734.
- Pay and download: the file is in your account straight away.
- Write it back the way you read it. Not right for your car? We correct it free.
Before you write the file
- A battery charger on the car: a write takes minutes and the voltage must not drop.
- Your own read saved twice, on two different drives: it is your way back.
- Your read shows hardware 0261S02365, part number 03H906032M and software 387734 (1037387734), the same as this file.
- Fault codes read and noted before the write, and cleared after it.
- The same tool and connection you read the ECU with.
Questions
Which ECU does this Porsche Cayenne 3.6 FSI original file fit?
A Bosch MED91 ECU with hardware 0261S02365, part number 03H906032M and software 387734 (1037387734). Check those numbers in your read before you write it; another software number needs another file, which our engineers can build from your read.
How is the Bosch MED91 read and written?
With your usual reading tool, over OBD or on the bench as the tool allows. Write the file back the same way you read the ECU, and keep your original read.
Can you add DTC off and speed limiter (Vmax) off to the Bosch MED91 file?
Yes, on request, for off-road and competition use: DTC off and speed limiter (Vmax) off. Upload a read through our file service and an engineer builds it (any file £50, from £30 in packs). The buyer is responsible for using it where the law allows.
What exactly is in the download?
A BIN file of 2 MB, ready to write. Write it with the same tool and the same connection you read the ECU with.
Does software 387734 fit other cars?
We also sell this software for the Porsche Cayenne S and Porsche CayenneS 957 3.6 FSI. The hardware number on your ECU decides whether the same file fits: match it before you write.
How do I get the file after paying?
It is in your account as an instant download straight after payment by card, Apple Pay or Google Pay: the BIN file, ready to write.
What if the file does not fit my car?
Send us your read and we correct it free, as many times as it takes. Questions before you buy are answered by a tuner on WhatsApp.
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