Golf 4 ECU Coding: How-To Guide

Translated on 11-10-2026, 21:56.

Hello,

I accidentally set the encoding to 00001 for a moment, and I can't remember the original encoding anymore.
I can't find any information about my engine.

Can someone please help me?

Vehicle information:
Golf 4, model 1J, engine code ASZ, part number 038 906 019HJ, manufactured in 2003.
All-wheel drive.
6-speed manual transmission.
ESP.
ABS.
GRA
Climatronic.
All possible airbags.

Regards,
Greyhound.

Translated on 11-10-2026, 21:58.

The encoding is:

Quote:

ECU coding (engine code ASZ).

Select STG 01 (Engine Electronics).
ECU coding -> Function 07.

00?0x: Extended maintenance interval.

0 - with extended maintenance interval (PR-QG1).
1 - Without extended maintenance interval (PR-QG0/QG2)

00x0?: Transmission.

1 - Front-wheel drive with automatic transmission.
2 - Front-wheel drive with manual transmission.
3 - All-wheel drive

Thank you for the tip.

Greyhound.