High Priority 94% confidence

Weak cabin cooling / Loss of performance

Q: How to fix Weak cabin cooling / Loss of performance in Volkswagen Golf GTE?

Repair of HV coolant leaks, repair/replacement of additional water pumps and VCDS vacancy procedures. In VAG hybrids, the air conditioning 'suffers' first when there is no liquid to cool the battery cells. Always check the fluid level in the orange/yellow HV lines under the hood.

in Volkswagen Golf GTE (2015-2022)

Symptoms

Weak cabin cooling

DTC error codes

B10ABF0

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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

VIII

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

VII kompresor Denso 6SES14C + 6SAS14

Refrigerant: R1234yf Amount (g): 460g Oil: N 052 535 A0/B0 PAO 68 AA1 Oil (ml): 110ml

VII kompresor MAHLE/Delphi 6CVC140 + Visteon

Refrigerant: R1234yf Amount (g): 460g Oil: N 052 535 A0/B0 PAO 68 AA1 Oil (ml): 120ml

See full specification

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