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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 Ford FOCUS II (DA_, HCP, DP)?

No cold air from vents. Weak cabin cooling. Clicking or rattling behind dashboard

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Ford FOCUS II (DA_, HCP, DP)?

The air supply system blows cold and warm air alternately, gets stuck on one setting or blows extreme temperatures on different sides of the cabin. This is accompanied by a characteristic clicking or knocking sound from under the dashboard. The problem is caused by mechanical wear of the plastic gears in the motor controlling the flap position. The solution is to replace the activator.

in Ford FOCUS II (DA_, HCP, DP) (2008-2018)

Symptoms

No cold air from vents
Weak cabin cooling
Clicking or rattling behind dashboard

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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

IV - (DEH)

Refrigerant: R1234yf Amount (g): 430-480g Oil: PAG YF ISO 46 Oil (ml): 120 - 140ml

IV 1,0 i EcoBoost/1,5 TDCi/1,6 TDCi

Refrigerant: R1234yf Amount (g): 530g Oil: WSS-M2C300-A2 PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 130ml

IV 1,5 i EcoBoost/2,0 TDCi

Refrigerant: R1234yf Amount (g): 625g Oil: WSS-M2C300-A2 PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 110ml

See full specification

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No airflow from specific vents or clicking noise behind dashboard

Symptoms

A/C Technical Specifications

Other problems in FOCUS II (DA_, HCP, DP)

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