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Project #23215

MED9.1 4F1910552D 0080 1037398562 0261S02371

VW - AUDI - SEAT - SKODA - PORSCHE Car Petrol LAMBDA OFF + DECAT + VMAX + DTC OFF ✓ Completed Oct 7, 2026

Vehicle & ECU

ECUMED9.1
Brand groupVW - AUDI - SEAT - SKODA - PORSCHE
Vehicle typeCar
FuelPetrol
File size2.00 MB 2,097,152 bytes
Completed
Automated processing≈ 25 min
Status✓ Completed & delivered
Original fileAudi_RS6_5.0_V10_TFSI_2009_Turbo-Benzin_426.6KWKW_Bosch_0261S02371_4F1907552A_398562_06D4.Original
Stock fileStock file in ORI archive (#11793) →

ECM Titanium

Driver · Vehicle · ECUA371_562 · AUDI RS6 II · MED9.1

Software identification 4

Software number4F1910552D
Version / upgrade0080
Identifier 21037398562
Identifier 30261S02371

Operations performed 4

  1. LAMBDA OFF automated · solution rev 8 · ~5 min

    Disables the oxygen (lambda) sensors.

  2. DECAT automated · solution rev 8 · ~5 min

    Disables catalytic converter efficiency monitoring and the P0420/P0430 fault codes.

  3. VMAX automated · solution rev 8 · ~5 min

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

  4. DTC OFF automated · solution rev 1 · ~10 min

    Permanently disables the fault codes (DTC) you select; you need to provide the P codes to turn off.

    • P0036HO2S Heater Control Circuit Bank 1 Sensor 2
    • P0037HO2S Heater Control Circuit Low Bank 1 Sensor 2
    • P0038HO2S Heater Control Circuit High Bank 1 Sensor 2
    • P0056HO2S Heater Control Circuit Bank 2 Sensor 2
    • P0057HO2S Heater Control Circuit Low Bank 2 Sensor 2
    • P0058HO2S Heater Control Circuit High Bank 2 Sensor 2
    • P0136O2=Sensor Circuit Bank 1 Sensor 2
    • P0137O2=Sensor Circuit Low Voltage Bank 1 Sensor 2
    • P0138O2=Sensor Circuit High Voltage Bank 1 Sensor 2
    • P0139O2=Sensor Circuit Slow Response Bank 1 Sensor 2
    • P0140O2=Sensor Circuit No Activity Detected Bank 1 Sensor 2
    • P0141O2=Sensor Heater Circuit Bank 1 Sensor 2
    • P0156O2 Sensor Circuit Bank 2 Sensor 2
    • P0157O2 Sensor Circuit Low Voltage Bank 2 Sensor 2
    • P0158O2 Sensor Circuit High Voltage Bank 2 Sensor 2
    • P0159O2 Sensor Circuit Slow Response Bank 2 Sensor 2
    • P0160O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2
    • P0161O2 Sensor Heater Circuit Bank 2 Sensor 2
    • P0420Catalyst System Efficiency Below Threshold Bank 1
    • P0430Catalyst System Efficiency Below Threshold Bank 2
    • P1421Catalyst Damage
    • P2096Post Catalyst Fuel Trim System Too Lean Bank 1
    • P2097Post Catalyst Fuel Trim System Too Rich Bank 1
    • P2098Post Catalyst Fuel Trim System Too Lean Bank 2
    • P2099Post Catalyst Fuel Trim System Too Rich Bank 2
    • P2270O2 Sensor Signal Stuck Lean Bank 1 Sensor 2
    • P2271O2 Sensor Signal Stuck Rich Bank 1 Sensor 2
    • P2272O2 Sensor Signal Stuck Lean Bank 2 Sensor 2
    • P2273O2 Sensor Signal Stuck Rich Bank 2 Sensor 2

Other solutions for this ECU 12

Every operation below can be ordered for the same MED9.1 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. automatic, 29 ready solutions for this file size · ~15 min 40 EUR
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 for this file size · ~60 min 160 EUR
STAGE3 A performance tune built from data logs after vehicle-specific hardware upgrades. engineer-assisted, on request · ~180 min 800 EUR
EGR OFF Disables the exhaust gas recirculation (EGR) system. engineer-assisted, on request · ~5 min 20 EUR
LAMBDA OFF Disables the oxygen (lambda) sensors. done in this project ✓
DECAT Disables catalytic converter efficiency monitoring and the P0420/P0430 fault codes. done in this project ✓
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, 3 ready solutions for this file size · ~5 min 20 EUR
POPBANG Creates exhaust pop & bang / crackle sounds; requires a decatted exhaust with few silencers. automatic, instant 80 EUR
POPBANG SWITCH Lets you turn the pop & bang feature on or off via a button or mode; may not suit every vehicle. automatic, instant 400 EUR
IMMO OFF Disables the immobilizer system so the vehicle can start and run. automatic, 2 ready solutions in library · ~180 min 200 EUR
HARDCUT Sets the engine hardcut (rev cut) point. automatic, instant 40 EUR
LAUNCH CONTROL Adds a launch control feature that holds the engine at a set rpm for take-off. automatic, 2 ready solutions for this file size · ~10 min 80 EUR
DTC OFF Permanently disables the fault codes (DTC) you select; you need to provide the P codes to turn off. done in this project ✓
CHECKSUM Automatically calculates and corrects your modified file’s checksum; if your tool cannot do checksums, we do it for you. automatic, instant 4 EUR
REV ORI Restores your modified software file to its original factory state. automatic, stock file in archive · ~120 min 40 EUR
Have a MED9.1 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

Bosch ME9 / MED9 is a petrol ECU generation used in VAG, BMW and others. This unit is fitted to VW - AUDI - SEAT - SKODA - PORSCHE Car vehicles. Project #23215 was completed automatically by the ECUHARD file service for a VW - AUDI - SEAT - SKODA - PORSCHE Car vehicle running software 4F1910552D 0080 1037398562 0261S02371. Disabled fault codes: P0036, P0037, P0038, P0056, P0057, P0058, P0136, P0137, P0138, P0139, P0140, P0141, P0156, P0157, P0158, P0159, P0160, P0161, P0420, P0430, P1421, P2096, P2097, P2098, P2099, P2270, P2271, P2272, P2273.

Frequently asked questions

What was done to this MED9.1 file?

Operations performed: LAMBDA OFF, DECAT, VMAX, DTC OFF. The modified file was checksum-corrected and delivered ready to flash.

Which fault codes (DTC) were disabled?

P0036 (HO2S Heater Control Circuit Bank 1 Sensor 2); P0037 (HO2S Heater Control Circuit Low Bank 1 Sensor 2); P0038 (HO2S Heater Control Circuit High Bank 1 Sensor 2); P0056 (HO2S Heater Control Circuit Bank 2 Sensor 2); P0057 (HO2S Heater Control Circuit Low Bank 2 Sensor 2); P0058 (HO2S Heater Control Circuit High Bank 2 Sensor 2); P0136 (O2=Sensor Circuit Bank 1 Sensor 2); P0137 (O2=Sensor Circuit Low Voltage Bank 1 Sensor 2); P0138 (O2=Sensor Circuit High Voltage Bank 1 Sensor 2); P0139 (O2=Sensor Circuit Slow Response Bank 1 Sensor 2); P0140 (O2=Sensor Circuit No Activity Detected Bank 1 Sensor 2); P0141 (O2=Sensor Heater Circuit Bank 1 Sensor 2); P0156 (O2 Sensor Circuit Bank 2 Sensor 2); P0157 (O2 Sensor Circuit Low Voltage Bank 2 Sensor 2); P0158 (O2 Sensor Circuit High Voltage Bank 2 Sensor 2); P0159 (O2 Sensor Circuit Slow Response Bank 2 Sensor 2); P0160 (O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2); P0161 (O2 Sensor Heater Circuit Bank 2 Sensor 2); P0420 (Catalyst System Efficiency Below Threshold Bank 1); P0430 (Catalyst System Efficiency Below Threshold Bank 2); P1421 (Catalyst Damage); P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1); P2097 (Post Catalyst Fuel Trim System Too Rich Bank 1); P2098 (Post Catalyst Fuel Trim System Too Lean Bank 2); P2099 (Post Catalyst Fuel Trim System Too Rich Bank 2); P2270 (O2 Sensor Signal Stuck Lean Bank 1 Sensor 2); P2271 (O2 Sensor Signal Stuck Rich Bank 1 Sensor 2); P2272 (O2 Sensor Signal Stuck Lean Bank 2 Sensor 2); P2273 (O2 Sensor Signal Stuck Rich Bank 2 Sensor 2). Each code is switched off in the ECU fault table, so it is no longer stored or shown by diagnostic tools.

What is the software version for this MED9.1 file?

This project is for MED9.1 with software numbers: 4F1910552D 0080, 1037398562, 0261S02371. 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 (MED9.1 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) (40 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 (MED9.1 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 MED9.1?

STAGE1 (40 EUR, automatic, 29 ready solutions for this file size); STAGE2 (160 EUR, automatic, 4 ready solutions for this file size); STAGE3 (800 EUR, engineer-assisted, on request); EGR OFF (20 EUR, engineer-assisted, on request); FLAPS OFF (20 EUR, automatic, 3 ready solutions for this file size); POPBANG (80 EUR, automatic, instant); POPBANG SWITCH (400 EUR, automatic, instant); IMMO OFF (200 EUR, automatic, 2 ready solutions in library); HARDCUT (40 EUR, automatic, instant); LAUNCH CONTROL (80 EUR, automatic, 2 ready solutions for this file size); CHECKSUM (4 EUR, automatic, instant); REV ORI (40 EUR, automatic, stock file in archive). Prices are per file.

I have a MED9.1 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.

Is there an ECM Titanium driver for this MED9.1 file?

Yes. The file is linked to ECM Titanium driver A371_562 (AUDI RS6 II). Matched: the software range is identical to the driver reference. The driver tells the software where the maps of this ECU software are, so tools that use ECM drivers, including the ECUHARD Tuning Editor, can open the maps 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.