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No airflow from specific vents or clicking noise behind dashboard

Q: What are the symptoms of No airflow from specific vents or clicking noise behind dashboard in Audi e-tron?

No cold air from vents. Different temperature on both sides of the cabin. Weak or no heating in winter. No blowing from vents

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Audi e-tron?

Audi TSB Bulletin 2064681: disinfection with an ultrasonic device (e.g. Wynn's Aircomatic). The machine is placed near the passenger's leg area with closed air circulation turned on. The sprayed cleaning mist flows through the evaporator and kills colonies of microorganisms. WARNING: foams inserted into the air vents may flood the electronics of the flap actuators (5Q0 907 511) - destruction costs PLN 300-600. Use only a mechanical probe or Aircomatic device.

in Audi e-tron (2000-2025)

Symptoms

No cold air from vents
Different temperature on both sides of the cabin
Weak or no heating in winter
No blowing from vents

DTC error codes

Brak

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

GE (Wszystkie wersje)

Refrigerant: R1234yf Amount (g): 800g Oil: POE (nieprzewodzący) Oil (ml): 180 - 220ml

See full specification

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No airflow from specific vents or clicking noise behind dashboard

Symptoms

DTC error codes

A/C Technical Specifications

Other problems in e-tron

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