Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Coding table
2004 Audi A4 Base, 4D Sedan, 3.0 TSECTION Coding table
| Empty Characters | 00 | |||||
| Country/emissions | 16 | ULEV (emissions regulation) | ||||
| Drive/auxiliary functions | 0 | Front-wheel drive without ASR/ESP | ||||
| 2 | AWD without traction control system | |||||
| 5 | Front-wheel drive with ASR/ESP | |||||
| 7 | AWD with traction control system | |||||
| Transmission | 1 | 6-Speed Manual Transmission | ||||
| 5 | Automatic Transmission 01V | |||||
| 8 | Multitronic 01J | |||||
| Vehicle type | 1 | Audi A4 |
- Confirm entry with -Q- button.
Display on VAS5051:
1 - Coding is being performed
- Wait until next display appears.
Fig 2: Diagnostic System VAS 5051: Display - (Coding Of Vehicle System Performed & Control Module Identification With New Coding)
Display on VAS5051:
1 - Coding performed in vehicle system
2 - Control module identification with new code
(previous code in brackets)
- Exit function "07 - Coding control module" by pressing ← button.
- Switch ignition off and then switch on again after 15 seconds.
NOTE:
- The next time the ignition is switched on the newly entered code will be activated.
- If the ignition is not switched off and on after the correct code has been entered, it will not be possible to erase DTC "01044 Control module incorrectly coded").
- In the case of non-hot country vehicles, the hot-country function (activation of the pump for coolant run-on) must be deactivated in function 11 - Login, or function 11 - Coding II. Refer to Hot-country function, activating/deactivating after installation of the new control module, a DTC memory entry is made.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.