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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 Opel Meriva A/B?

No cold air from vents. Clicking or rattling behind dashboard. Unusual noises when A/C is turned on. A/C does not react to control panel settings

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Opel Meriva A/B?

Programming (SPS / TIS2Web). Updating the air conditioning controller software to the latest version. In the case of Astra J - replacing the old 16-bit driver with a 32-bit one (hardware upgrade). In Corsa C - replacing the TID module. If you see strange behavior of the flaps (they do not respond smoothly) or messages such as M1-M5, absolutely do not remove the dashboard! 9 out of 10 such cases in pre-facelift Opels are treated with a 10-minute visit with a laptop and uploading new calibration software via the OBD connector.

in Opel Meriva A/B (2002-2012)

Symptoms

No cold air from vents
Clicking or rattling behind dashboard
Unusual noises when A/C is turned on
A/C does not react to control panel settings

DTC error codes

Various, specific to HVAC module

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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

Refrigerant: R134a Amount (g): 580g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 125ml

Z13DT/Z17DT + DTL + DTH/Z14XEP/Z16SE/Z16 + Z18XE/Z16LET

Refrigerant: R134a Amount (g): 690g Oil: ND8 PAO 68 lub PAG ISO 46 Oil (ml): 150ml

B 06.–03.2017

Refrigerant: R1234yf Amount (g): 565g Oil: - Oil (ml): - ml

See full specification

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