Failed heating system. Photo by: Pixabay. There are a few things that can go wrong with the SX4’s heating system, but if your Suzuki SX4’s heating doesn’t work, the most likely culprit is a bad or leaking heater core. The SX4’s heating system works by utilizing hot coolant from the engine. On average, the cost for a Suzuki SX4 AC is not working Inspection is $111 with $16 for parts and $95 for labor. Prices may vary depending on your location. Although air conditioning may not be a necessity to get from point A to point B, it sure contributes to the quality of the trip. 2012 Suzuki SX4 AC Is Not Working? RepairPal will help you figure out whether it's your AC Refrigerant Leak, Climate Control Electrical Issue, AC Compressor, or something else. App Vay Tiền Nhanh.

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