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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 Bentley CONTINENTAL?

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 Bentley CONTINENTAL?

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 Bentley CONTINENTAL (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

Najnowsze (Gaz nowej generacji, wysoka precyzja)

Refrigerant: R1234yf Amount (g): 580 - 620g Oil: PAG ISO 46 YF Oil (ml): 130ml

After update (Po VIN 30349)

Refrigerant: R134a / R1234yf Amount (g): 580 - 620g Oil: PAG ISO 46 YF Oil (ml): 130ml

Older (Sztywne wartości przed VIN 30349)

Refrigerant: R134a Amount (g): 630 - 670g Oil: PAG ISO 46 Oil (ml): 150ml

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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 CONTINENTAL

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