Instant download
MB SLK 55 original file Bosch HW 0261S04178 · SW 393966
2008 · Petrol · 360 hp (265 kW)
Choose your file
Dyno sheet
- Power
- 360 hp
- Torque
- 510 Nm
Typical crank figures for a healthy 55 AMG. Results depend on the car's condition, fuel and parts.
- Power
- 360 hp 265 kW
- ECU
- Bosch
- Engine
- 55 AMG Petrol · 5,439 cc · 8 cyl
- File
- 512 KB BIN, ready to write
Bosch on the MB SLK 55
Software and hardware
- Hardware
- 0261S04178 Bosch's number for the ECU itself, on its label printed 0 261 S04 178
- Software
- 393966 (1037393966) The software inside: your read must show this number
How the Bosch is read: OBD and Bench
Older tools
Built on request for the MB SLK 55
- Catalyst off
- Speed limiter (Vmax) off
- Pops and bangs
Request a custom solution Any file £50, from £30 in packs, every option in the one price.
Not the one? Find another
By the numbers in your tool, or by the car.
Or search this file's own
Is this the file for your read?
Drop your read and we compare it with this file, number by number. It stays private.
- Read the file on your computer
- Look for it in our files
- Upload it, kept private
- Compare it with this file
From read to write
- Read the ECUKeep the read: it is your way back.
- Match the numbershardware 0261S04178 and software 393966
- Pay and downloadThe file is in your account straight away.
- Write it backThe 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 0261S04178 and software 393966 (1037393966), the same as this file.
- Fault codes read and noted before the write, and cleared after it.
- The same tool and connection (OBD and bench) you read the ECU with.
About this file
What this original file is
This is the factory calibration of the 2008 MB SLK 55 (265 kW, 360 hp), for its Bosch ECU with hardware 0261S04178 and software 393966 (1037393966). 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.
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 MB SLK 55 carries the 55 AMG engine, 360 hp and 510 Nm from the factory.
This file of software 393966 of the MB SLK 55 downloads straight after payment. Another stage of it can be built from your own read by our engineers.
The Bosch ECU in this car is read and written over OBD and on the bench, with tools such as CMD Flash and Alientech Kess V2. Keep your own read: compare its hardware and software numbers with the ones on this page before you write the file.
Catalyst off, speed limiter (Vmax) off and pops and bangs 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 0261S04178 is the number on the Bosch ECU's label. Software 393966 (1037393966) is the calibration inside it: a read with hardware 0261S04178 and another software number needs a different file.
Questions
Which ECU does this MB SLK 55 original file fit?
A Bosch ECU with hardware 0261S04178 and software 393966 (1037393966). 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 ECU read and written?
Over OBD and on the bench, with tools such as CMD Flash and Alientech Kess V2. Write the file back the same way you read the ECU, and keep your original read.
Can you add catalyst off to the Bosch ECU file?
Yes, on request, for off-road and competition use: catalyst off, speed limiter (Vmax) off and pops and bangs. 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 512 KB, ready to write. Write it with the same tool and the same connection you read the ECU with.
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.
I need a file
A file for the car in front of you
Our engineers tune your read, or the file is already in the library.
- I run a tuning businessYour own file portal
- PartnersA file service behind your brand