ECUHARD
Recent Projects
Sign In
Project #21620

SIMOS18 4M0906259S 0001

VW - AUDI - SEAT - SKODA - PORSCHE Car Petrol STAGE1 + VMAX ✓ Completed Sep 24, 2026

Vehicle & ECU

ECUSIMOS18
Brand groupVW - AUDI - SEAT - SKODA - PORSCHE
Vehicle typeCar
FuelPetrol
File size6.00 MB 6,291,456 bytes
Completed
Automated processing≈ 20 min
Status✓ Completed & delivered
Original fileAudi_Q7_2015_(4M)_2.0_TFSI_252_hp_Continental_Simos18.4_OBD_VR_WA1LJAF7XMD029857.bin
Stock fileStock file in ORI archive (#47508) →

Software identification 2

Software number4M0906259S
Version / upgrade0001

Operations performed 2

  1. STAGE1 automated · solution rev 31 · ~15 min

    A performance tune that needs no mechanical changes and stays within the factory safety limits.

  2. VMAX automated · solution rev 19 · ~5 min

    Removes the speed limiter (Vmax) or sets it to the desired value.

Other solutions for this ECU 13

Every operation below can be ordered for the same SIMOS18 file (petrol). Prices are per file in EUR; automatic solutions are delivered within minutes, engineer-assisted ones are prepared by our tuning team.

STAGE1 A performance tune that needs no mechanical changes and stays within the factory safety limits. done in this project ✓
STAGE2 A performance tune for vehicles with hardware upgrades such as a downpipe, intercooler or intake; DPF/EGR delete is a separate operation. automatic, 4 ready solutions in library · ~60 min 200 EUR
STAGE3 A performance tune built from data logs after vehicle-specific hardware upgrades. engineer-assisted, on request · ~180 min 1000 EUR
GPF OFF Deletes the gasoline particulate filter (GPF/OPF) system on modern petrol engines. automatic, 1 ready solution in library · ~15 min 100 EUR
LAMBDA OFF Disables the oxygen (lambda) sensors. automatic, 9 ready solutions in library · ~5 min 25 EUR
DECAT Disables catalytic converter efficiency monitoring and the P0420/P0430 fault codes. automatic, 12 ready solutions in library · ~5 min 25 EUR
NOX OFF Disables the NOx sensor. engineer-assisted, on request · ~5 min 25 EUR
VMAX Removes the speed limiter (Vmax) or sets it to the desired value. done in this project ✓
FLAPS OFF Disables the swirl flaps in the intake manifold. automatic, 2 ready solutions in library · ~5 min 25 EUR
STARTSTOP OFF Permanently disables the Start/Stop system. engineer-assisted, on request · ~20 min 200 EUR
POPBANG Creates exhaust pop & bang / crackle sounds; requires a decatted exhaust with few silencers. automatic, 14 ready solutions in library · ~15 min 100 EUR
POPBANG SWITCH Lets you turn the pop & bang feature on or off via a button or mode; may not suit every vehicle. engineer-assisted, on request · ~60 min 500 EUR
IMMO OFF Disables the immobilizer system so the vehicle can start and run. engineer-assisted, on request · ~180 min 250 EUR
DTC OFF Permanently disables the fault codes (DTC) you select; you need to provide the P codes to turn off. automatic, instant 50 EUR
REV ORI Restores your modified software file to its original factory state. automatic, stock file in archive · ~120 min 50 EUR
Have a SIMOS18 file? Sign in to the ECUHARD platform, upload it and pick the operations — automatic solutions are ready in minutes, 24/7, invoice issued automatically.
Sign in & upload your file →

About this project

Continental/Siemens SIMOS is a petrol ECU family used mainly in VAG vehicles. This unit is fitted to VW - AUDI - SEAT - SKODA - PORSCHE Car vehicles. Project #21620 was completed automatically by the ECUHARD file service for a VW - AUDI - SEAT - SKODA - PORSCHE Car vehicle running software 4M0906259S 0001.

Frequently asked questions

What was done to this SIMOS18 file?

Operations performed: STAGE1, VMAX. The modified file was checksum-corrected and delivered ready to flash.

What is the software version for this SIMOS18 file?

This project is for SIMOS18 with software numbers: 4M0906259S 0001. The same operations apply to other vehicles running the same software.

Can I get the same tuning for my VW - AUDI - SEAT - SKODA - PORSCHE?

Yes. Sign in, upload your original ECU file (SIMOS18 or any supported ECU), choose the operations you need and our automated system prepares the file, usually within minutes, 24/7.

I read my ECU with a different tool — will the tuning fit my file?

Yes. Every operation is applied to the file you upload — your own read from your own car — so the tool and the read mode do not matter: the modifications are located by content, not by a fixed file layout. If your file was modified before, our REV ORI (revert to original) module repairs every changed area back to the stock values first — no matter which tool or method read it (KTAG, KESS, Flex, Autotuner, CMD, OBD, bench or boot) (50 EUR). A compatibility problem is therefore impossible.

I have an OBD read — can you tune it, or do I need a bench/boot read?

An OBD read is fine as long as it contains the software area (maps). Upload it; the platform detects the ECU and software number and shows which operations are available for your file. If the read is partial and an operation is not possible on it, you will see that before paying.

I read boot mode with KTAG / bench with Flex / bench or OBD with Autotuner — which read do I upload?

Any of them. Upload the file exactly as your tool saved it (SIMOS18 reads are supported in OBD, bench and boot form). The system works on your own read, so nothing has to be converted or matched to a different device.

Do you need the full backup (EEPROM, other sectors)?

No. Only the software-related part of the ECU is used: the maps area — the internal flash and/or the external flash, depending on where the software lives in that ECU. EEPROM and other memory sectors are not needed and are never modified. Keep your full backup for yourself as a safety copy.

How can I be sure the result will be compatible with my ECU?

Because the file returned to you is your own read with only the selected areas changed and the checksum corrected, it flashes back with the same tool and method you used to read it. The software number stays the same; nothing else in the file is touched.

What other operations are available for SIMOS18?

STAGE2 (200 EUR, automatic, 4 ready solutions in library); STAGE3 (1000 EUR, engineer-assisted, on request); GPF OFF (100 EUR, automatic, 1 ready solution in library); LAMBDA OFF (25 EUR, automatic, 9 ready solutions in library); DECAT (25 EUR, automatic, 12 ready solutions in library); NOX OFF (25 EUR, engineer-assisted, on request); FLAPS OFF (25 EUR, automatic, 2 ready solutions in library); STARTSTOP OFF (200 EUR, engineer-assisted, on request); POPBANG (100 EUR, automatic, 14 ready solutions in library); POPBANG SWITCH (500 EUR, engineer-assisted, on request); IMMO OFF (250 EUR, engineer-assisted, on request); DTC OFF (50 EUR, automatic, instant); REV ORI (50 EUR, automatic, stock file in archive). Prices are per file.

I have a SIMOS18 file — how can I get it done?

Sign in to the ECUHARD platform (solutions.ecuhard.com), upload your ECU file, select the operations you need and confirm. Automatic solutions are delivered within minutes, 24/7; engineer-assisted operations are prepared by our tuning team. Each file is checksum-corrected and an invoice is issued automatically.

Do I need to send my original file?

Yes — upload the stock read of your ECU. If you do not have it, our original file archive may have a matching file by software number.