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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSAUDI2005A4 BASE, 4D SEDAN, 3.0 TREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEM1.8L - ENGINE CONTROLS - ON BOARD DIAGNOSTIC (OBD) ENGINE CODE(S): AMBON BOARD DIAGNOSTIC (OBD)ENCODING II ENGINE CONTROL MODULE (ECM)CODING II TABLE

2005 Audi A4 Base, 4D Sedan, 3.0 T

Coding II table

2005 Audi A4 Base, 4D Sedan, 3.0 TSECTION Coding II table

CODING II

Empty characters	00
Country/emissions		16				ULEV (emissions regulation)
Drive/auxiliary functions			0			Front-wheel drive without TCS / ESP
			2			4WD without traction control system
			5			Front-wheel drive with TCS / ESP
			7			4WD with traction control system
Transmission				0		5-Speed Manual Transmission
				5		Automatic Transmission 01V
				8		Multitronic 01J
Model					1	Audi A4

Confirm entry with -Q- button.

Display on VAS 5051:

Fig 1: Displaying On VAS 5051 - Coding II Table (1 Of 2)

Courtesy of AUDI OF AMERICA, INC.

1 - Coding II being carried out

Wait until next display appears.

Display on VAS 5051:

Fig 2: Displaying On VAS 5051 - Coding II Table (2 Of 2)

Courtesy of AUDI OF AMERICA, INC.

- Coding II being carried out in vehicle system
- Control module identification with new code (previous code in brackets)

Exit function "07 - Encode Engine Control Module" by pressing the < 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".

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.