Toyota Yaris owners often complain about the A/C not cooling properly in summer. This is usually caused by cooling circuit faults.

Symptoms

• Blows warm air
• Cabin not cooling despite fan working
• Oily stains from refrigerant leaks
• Compressor not engaging

Possible Causes

• Low/empty refrigerant
• Faulty compressor
• Clogged condenser
• Dirty cabin filter
• Electrical issues (fuse/relay)

Solutions

• Leak test and refill gas
• Replace faulty compressor
• Clean/replace condenser
• Replace cabin filter
• Check fuses/relays

Advice

Refilling gas without fixing leaks won’t solve the issue.