ME7.5.10 EEPROM IMMO & Key Data Reference + IMMO OFF & Manual Sync Tutorial

Compiled from a real dump and analysis. Still testing some parts. Use at your own risk.

EEPROM Data Map – ME7.5.10 ECU (95040)

Purpose	Offset (Dec)	Offset (Hex)	Value (Hex)	Notes
Reserved Start	0	0x00	FF FF FF FF FF DA FF FF ...	Start of EEPROM, filler/reserved bytes
MAC Block Example	16	0x10	05 01 01 00 6F 59 01 00 03 00 69 C1 00 A5 5D FD	Likely IMMO MAC/security block
IMMO Flag 1	18	0x12	01	IMMO status (01 = ON)
IMMO Flag 2	34	0x22	01	Secondary IMMO flag (01 = ON)
Software Code Block	32	0x20	05 01 01 00 6F 59 01 00 03 00 69 C1 00 A5 5C FD	Bosch ECU software ID block
PIN Bytes 1-2	50–51	0x32–0x33	FF FF	PIN part 1 (reversed ASCII, often FF if virgin)
PIN Bytes 3-4	67–68	0x43–0x44	FF FF	PIN part 2
VIN Start	144	0x90	57 56 57 5A 5A 5A 36 4E 5A 31 59 35 38 38 30 39 31	VIN: WVWZZZ6NZ1Y588091
IMMO ID Start	160	0xA0	56 57 5A 37 5A 30 58 32 31 33 30 34 38 31 36 36	IMMO ID: VWZ7Z0X213048166

Valeo IMMO2 EEPROM Dump (24C02)

Purpose	Start Offset	End Offset	Hex Value	ASCII	Notes
PIN Code #1	0x70	0x71	08 0F	20 63	Final PIN = 02063
PIN Code #2	0xF0	0xF1	08 0F	20 63	Redundant copy
PIN Code #3	0x170	0x171	08 0F	20 63	Redundant copy
IMMO ID	0x9B	0xA8	VWZ1Z0A1248736		Used by ECU
Transponder ID #1	0x30	0x36	9A 7D 2A 4F 1B E0 12	-	Main key
Transponder ID #2	0x130	0x136	9A 7D 2A 4F 1B E0 12	-	Redundant copy
Transponder ID #3	0x230	0x236	9A 7D 2A 4F 1B E0 12	-	Redundant copy

Final PIN: 02063 
IMMO ID: VWZ1Z0A1248736 
Key (Transponder ID): 9A 7D 2A 4F 1B E0 12 

Tutorial: IMMO OFF for ME7.5.10 (95040)

1. Read the 95040 EEPROM with a programmer (e.g. CH341A, EZP2023+). 
2. Locate and edit: 
   - Set byte at offset 0x12 to 02 (IMMO Flag 1 → OFF) 
   - Set byte at offset 0x22 to 02 (IMMO Flag 2 → OFF) 
3. Recalculate and correct EEPROM checksum: 
   - Use tools like ME7Check, TunerPro plugin, or hex editor scripts. 
   - Checksum must be correct or ECU may reject EEPROM. 
4. Save and write back the modified dump. 
5. Clear DTCs using VCDS or compatible tool. 
6. Start the car – IMMO should now be disabled.

Note: ECU PIN may be blank (FF) if ECU is virgin or already IMMO off.

Tutorial: Manual IMMO Sync (ECU ↔ IMMO Box)

1. Extract PIN from both ECU and IMMO EEPROMs. 
   - Example IMMO PIN: 02063 
2. Use VAG Commander, VAG-Tacho, or VCDS for access. 
3. Login to both modules with PIN. 
4. Adaptation → Channel 50 → Enter IMMO ID (from IMMO box) into ECU = Set ECU PIN 
5. Confirm and match → successful sync. 
6. Start the car with original keys.

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Need help reading or writing with CH341A or EZP2023+? 
Just ask — I can share the correct chip selection and settings for ASProgrammer or EZP Software.

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⚠️ Disclaimer 
I am not responsible for any damage caused. Always make full EEPROM backups before modifying. 
This information is provided for educational and research purposes only. 
I have not fully tested this on all ECUs yet, but plan to do so soon.