* What's broken: A simple recharge of refrigerant might cost $100-$200. However, a compressor failure could run $500-$1000 or more. Other potential problems include leaks in the system (requiring expensive repairs to find and fix), a failing condenser, evaporator issues, or problems with the blower motor or controls. Each of these has a widely varying repair cost.
* Labor rates: Mechanic labor rates vary significantly by location (rural vs. urban) and the shop's reputation. A dealership will generally charge more than an independent mechanic.
* Parts costs: The cost of parts, especially the compressor, can fluctuate based on the supplier and whether you opt for new or used parts. Used parts are cheaper but carry more risk.
* DIY vs. Professional: If you're mechanically inclined and have the tools, you might save significantly by tackling some repairs yourself (recharging refrigerant is often doable for DIYers with the right equipment). However, diagnosing and fixing more complex AC problems is best left to professionals to avoid further damage or injury.
In short: Expect to pay anywhere from $100 (for a simple recharge) to potentially over $1000 (for major repairs). To get an accurate estimate, you'll need to take your car to a qualified mechanic for a diagnosis. They can inspect the system, identify the problem, and provide a detailed estimate of the repair cost.