2026-07-21 · 4 min read
Toyota Corolla Altis A/C Not Cold Malaysia
Low refrigerant, evaporator mould and worn compressor are the three most common Altis A/C problems. Diagnosis and repair cost guide.
Altis A/C is one of the best in its class — the Denso system is well-sized for the cabin. Common causes of weak A/C: clogged cabin filter, low refrigerant, dirty evaporator. ZWE186 hybrid uses an electric compressor.
A/C Diagnosis
- Change cabin filter first: RM 35–65 — solves 40% of A/C complaints
- Refrigerant top-up: RM 80–150 — standard R134a for all Altis generations
- Evaporator chemical clean: RM 150–250 — cures musty smell and restores cooling