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Fogging the windows from the inside and asymmetric cooling (driver/passenger ...

Q: What are the symptoms of Fogging the windows from the inside and asymmetric cooling (driver/passenger ... in Volkswagen Atlas?

Different temperature on both sides of the cabin. Water dripping into cabin or wet carpets. Fogging windows. Frost or ice on pipes under the hood

Q: How to fix Fogging the windows from the inside and asymmetric cooling (driver/passenger ... in Volkswagen Atlas?

Improvement/replacement of the drainage pipe and mandatory verification or replacement of the flooded Airbag module. The fault is covered by a mass service campaign (Recall 87H4 / 87F9). Regardless of where you repair, make sure that the airbag controller is not tarnished at the bottom, as the airbags may not fire in the event of an accident!

in Volkswagen Atlas (2018-2021)

Symptoms

Different temperature on both sides of the cabin
Water dripping into cabin or wet carpets
Fogging windows
Frost or ice on pipes under the hood

DTC error codes

Airbag Control Module Faults

Verifying license...

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

SUV (Wersja na rynek USA)

Refrigerant: R1234yf Amount (g): 650g Oil: PAG ISO 46 YF Oil (ml): b.d.ml

Standard

Refrigerant: R1234yf Amount (g): 460g Oil: - Oil (ml): - ml

See full specification

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