17 Jul Car Air Conditioning Leak Testing Brisbane
How We Test Your Car Air Conditioning for Leaks
Expert Mobile Car Air Conditioning Leak Testing in Brisbane | ARCtick Certified AU13448
By Keepin Cool Auto Air
When your car air conditioning stops blowing cold air, a leak in the system is often to blame. At Keepin Cool Auto Air, we provide mobile car AC leak detection throughout Brisbane, Bayside, and Redland City — using premium tools like Trace-A-Gas and UV dye for accurate diagnosis and long-term solutions.
In this article, we explain how we professionally test your car’s AC system for leaks, what methods we use, and why it’s essential to test before every regas.
Why Leak Testing Matters
Your car’s AC system is sealed and pressurised. If refrigerant escapes:
- Cooling performance drops
- Your compressor can overheat and fail
- You’ll likely need another regas soon after
- Leaks can worsen and lead to more expensive repairs
That’s why we don’t guess. We test properly — with premium equipment and proven methods — to find the real issue before performing any regas.
Common Signs of a Car AC Leak
- Warm or weak airflow from vents
- System stopped working suddenly
- You’ve had one or more regasses in the past year
- Oil stains near AC hoses, fittings, or the compressor
- Hissing sound under the bonnet when AC is on
If you’ve noticed any of these signs, your AC may be leaking — and a proper diagnosis is the first step to fixing it.
How We Test Your Car Air Conditioning for Leaks
We bring the workshop to you — equipped with digital gauges, electronic sniffers, and industry-leading leak detection methods.
1. Visual Inspection
We begin by inspecting all visible components of your AC system, including:
- Compressor and clutch
- Condenser and TX valve
- Hoses, seals, and O-rings
Cabin evaporator (checked from drain outlet or cabin signs)
This helps us identify any obvious faults, oil traces, corrosion, or physical damage that could cause refrigerant to escape.
2. Pressure Testing with Digital Gauges
Next, we measure system pressure using digital manifold gauges. These readings help us understand the condition of the system:
- Zero pressure means a likely major leak
- Low pressure indicates a slow loss over time
- Irregular pressure may suggest blockages or internal valve issues
This step confirms whether the system is holding refrigerant or not.
3. Premium Leak Detection Using Trace-A-Gas
(Standard in Every Inspection)
Unlike basic nitrogen testing, we use Trace-A-Gas — a premium blend of hydrogen and nitrogen — to detect leaks with high sensitivity.
Why we use Trace-A-Gas:
- Finds even the smallest, hairline leaks
- 100% safe for your vehicle’s AC system
- Much more effective than traditional nitrogen or visual checks
Included as standard in all leak test bookings
We pressurise your system with Trace-A-Gas and use a hydrogen sensor to scan all components. If there’s a leak — we’ll find it.
4. Electronic Leak Detection (When Needed)
In some cases, we complement our Trace-A-Gas test with electronic refrigerant sniffers. This is especially useful for:
- Leaks inside the dashboard (evaporator)
- Checking post-repair work
- Double-checking small or intermittent leaks
5. UV Dye Detection (Included with Every Regas)
Every time we perform a regas, we automatically add UV dye into the system.
This fluorescent dye circulates with the refrigerant and oil, and if a future leak occurs, it becomes easy to detect using a UV light.
- No guessing required later
- Essential for evaporator or micro-leak detection
- Helps prevent repeated unnecessary diagnostics
- If a leak reappears weeks or months later, we can quickly locate it by scanning for UV traces — saving you time and money.
What Does Car AC Leak Testing Cost?
At Keepin Cool, we offer honest pricing and high-value diagnostics.
Mobile Leak Detection with Trace-A-Gas – From $170
- Included in your appointment:
- Full system inspection
- Digital pressure readings
- Leak detection with Trace-A-Gas
- Electronic sniffing (if required)
- Report and expert advice on next steps
There’s no guessing, no unnecessary regassing, and no “top-up and see what happens.” Just reliable, professional testing.
Why Choose Keepin Cool Auto Air?
- We come to your home or workplace
- ARCtick Certified Technicians (AU13448)
- Specialised in car air conditioning only — no general mechanical work
- Trusted by Brisbane and Redlands drivers for over 10 years
- We use only high-quality tools and refrigerants (R134a & 1234yf)
Book Your Car Air Conditioning Leak Testing In Brisbane Today
Stop wasting money on temporary fixes.
Book a professional leak inspection and get your AC properly repaired — the first time.
📞 Call 0415 761 019
🌐 Request a Quote
Proudly servicing Brisbane, Bayside, and Redland City.
