High Priority 90% confidence

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 Maserati GHIBLI?

Different temperature on both sides of the cabin. Clicking or rattling behind dashboard. A/C does not react to control panel settings

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Maserati GHIBLI?

Replace the failed blend door actuator (driver or passenger side mix actuator). Access can be gained through the glovebox housing or steering column trim panels; extreme cases require full dashboard assembly removal. Complete the job by calibrating the end positions using a professional diagnostic tool (e.g., Leonardo, Texa).

in Maserati GHIBLI (2013-2026)

Symptoms

Different temperature on both sides of the cabin
Clicking or rattling behind dashboard
A/C does not react to control panel settings

DTC error codes

B102B

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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

M157 - Wersja 4-strefowa (Dodatkowy parownik)

Refrigerant: R134a / R1234yf Amount (g): 890g Oil: PAG ISO 46 Oil (ml): 180ml

M157 - Wersja standardowa (2-strefowa)

Refrigerant: R134a / R1234yf Amount (g): 500g Oil: PAG ISO 46 Oil (ml): 110ml

M157 - Wersja standardowa (Rynek US/Hot Climate)

Refrigerant: R134a / R1234yf Amount (g): 740g Oil: PAG ISO 46 Oil (ml): 130ml

See full specification

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