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.

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HOMESERVICE MANUALSAUDI2004A4 BASE, 4D SEDAN, 3.0 TREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTHEATED GLASS/DEFOGGERSON BOARD DIAGNOSTIC (OBD)AUTOMATIC CLIMATE CONTROL SYSTEM, ON BOARD DIAGNOSTIC (OBD)ADAPTATION OF FRESH AIR BLOWER RPM DECREASE, PERFORMING (ADAPTATION CHANNEL 08)CARRY OUT ADAPTATION

2004 Audi A4 Base, 4D Sedan, 3.0 T

Carry out adaptation

2004 Audi A4 Base, 4D Sedan, 3.0 TSECTION Carry out adaptation

Check DTC memory of A/C control head -E87- (see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING (FUNCTION 02) ) and eliminate all displayed malfunctions.
Check coding of A/C control head -E87- for vehicle equipment options and correct if necessary. See A/C CONTROL HEAD -E87-, CODING (FUNCTION 07) .

Indicated on display of VAS 5051:

Fig 1: VAS 5051 Scan Tool Display - Performing Adaptation Of Fresh Air Blower RPM Decrease (1 Of 8)

Courtesy of AUDI OF AMERICA, INC.

Select "Adaptation" function 10.

Indicated on display of VAS 5051:

Fig 2: VAS 5051 Scan Tool Display - Performing Adaptation Of Fresh Air Blower RPM Decrease (2 Of 8)

Courtesy of AUDI OF AMERICA, INC.

Display field -1- indicates the request to input channel number.
Display field -2- shows input keyboard.

Input via the keyboard -8- for channel "8" in display field -2- and accept by pressing the -Q- button. See Fig 3.
NOTE:
- If "Function is unknown or cannot be carried out at the moment" is displayed in display field -1-, the following may be the cause:

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.