A common complaint in Golf 5s is the AC blowing warm or only lukewarm air. Causes range from simple low refrigerant to compressor failure.

Symptoms

• AC blows warm air
• Cabin doesn’t cool
• Compressor clutch not engaging

Main causes

• Low refrigerant/leak
• Faulty compressor
• Blocked condenser
• Dirty pollen filter
• Electrical fault

Solutions

• Check refrigerant & repair leaks
• Repair/replace compressor
• Clean/replace condenser
• Replace pollen filter
• Check fuses/relays

Advice

Refilling gas without repairing leaks is temporary. Replace pollen filter regularly to improve performance.