AC Leak Detector Dye – A Reliable Solution for Automotive Leak Detection

When it comes to maintaining a vehicle’s air conditioning and cooling systems, detecting leaks quickly and accurately is crucial. The AC Leak Detector Dye is a 40ml fluorescent leak detection agent designed to help mechanics and car owners identify even the smallest leaks with ease. Whether you’re dealing with an engine coolant leak, AC refrigerant loss, or oil system seepage, this product offers a highly effective tracing solution that simplifies diagnostics.

Key Features & Benefits

1. Highly Visible Fluorescent Formula

One of the standout features of this leak detection dye is its bright fluorescent formula, which glows vividly under UV light. This makes it easy to pinpoint leaks in hard-to-reach areas, such as hoses, radiators, compressors, and seals. Unlike conventional methods that rely on guesswork, this dye ensures precise leak identification, reducing unnecessary part replacements.

2. Safe for Multiple Automotive Systems

This universal leak detection agent is compatible with:

• Air conditioning (AC) systems
• Engine coolant circuits
• Transmission and power steering fluids
• Engine oil systems

Its non-corrosive formula ensures it won’t damage rubber seals, O-rings, or metal components, making it a long-term solution for preventive maintenance.

3. Quick & Easy Application

Applying the dye is straightforward—simply inject the recommended amount into the system (typically 5-10ml for AC or coolant systems). Once circulated, a UV torch (sold separately) reveals leaks as bright yellow-green traces. This method is far more efficient than traditional soap bubble tests or electronic detectors, which can sometimes miss small or intermittent leaks.

4. Prevents Costly Compressor Failures

Undetected refrigerant leaks can lead to AC compressor failure, a costly repair. By catching leaks early, this dye helps extend the lifespan of your AC system while maintaining optimal cooling performance.

Customer Feedback

Many users have praised its effectiveness:

• “Found a tiny leak in my car’s AC line within minutes—saved me hours of guesswork!” – Mark T.
• “Works brilliantly in coolant systems. The UV glow makes leaks impossible to miss.” – Sarah L.
• “Much better than electronic sniffers—no false readings, just clear results.” – James H.

Final Verdict

For professional mechanics and DIY enthusiasts, the AC Leak Detector Dye is a must-have diagnostic tool. Its high-visibility fluorescent agent, broad compatibility, and ease of use make it a reliable choice for maintaining automotive systems.

ASIN: B0DMXBB38R

XIHIRCD 6pcs Valve Core Wrench Tool, Air Conditioning Line Repair Tools Single & Dual Head Tire Valve Stem Remover Tool A/C Valve Core Extractor for Car Bicycle RV Truck

£7.99 (£1.33 / count) (as of November 9, 2025 18:58 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Package Included: You will receive 6 pieces of tire valve stem remover tools in the packages, including single and dual head. Sufficient quantities and types can satisfy your daily uses and needs. Dual Head Design: The dual-head design two sizes into... read more

MUXSAM Car Air Conditioning Fuel Line Disconnect Tool Set OIL Pipe Removal Repair Tool, 7 in 1 AC Disconnect Tool Air Condition Oil Fuel Line Disconnect Tool Quick Connecting Sleeves

£8.99 (as of November 9, 2025 20:32 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

[DURABLE] - Made of high-quality plastic, high toughness and durable for long time use [EASY TO USE] - Can easily and quickly connect and disconnect air conditioning and fuel lines. If you are replacing or repairing the A/C or fuel line on your car o... read more

Brake Pipe Flaring Tool Set, Include 3 in 1 Tubing Bender, 3/16in 25ft Brake Line with 16 Joints, 1 Tube Cutter, Brake Line Flaring Tool for Vehicle Brake Systems, Air Conditioning Systems 

19% Off £39.99 £32.39 (as of November 9, 2025 18:58 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

【Brake Pipe Flaring Tool】KALOASREO Brake Pipe Flaring Tool kit with 5 adapters are suitable for the different sizes of tubing. The adapters cover sizes including 3/16", 1/4", 5/16", 3/8", and 1/2", make it suitable for a wide range of tubing sizes an... read more

7 in 1 Car AC Fuel Line Disconnect Tool Set, Air Conditioning Oil Pipe Removal Repair Tool Quick Connecting Sleeves

10% Off £9.12 £8.18 (as of November 9, 2025 06:00 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

【 High Toughness & Made of high quality plastic, air condition oil fuel line disconnect has high toughness and for long time use. Not easy to aging and abrasion resistant, to ensure maximum strength and durability for long lasting usage 【 Light Weigh... read more

PEUTIER 3pcs Tyre Valve Core Wrench Tool, Single & Dual Head A/C Valve Core Extractor Air Conditioning Line Repair Removal Schrader Remover for Car Bicycle Bike Tire RV Truck HVAC Air Conditioner

£5.49 (as of November 9, 2025 21:23 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Packing List: You will receive some valve core wrench tools in the packages, including 3 types of wrenches: 2mm/0.08in single head, and 2mm/0.08in and 3mm/0.12in dual head. Sufficient types can meet your daily uses and needs. Premium Material: Our wr... read more

Hsthe Sea Valve Core Remover/Installer with Dual Size SAE 1/4 & 5/16 Port Air Conditioning Line Repair Tools for R404A R407C R134A R12 R32 HVAC

£14.99 (as of November 9, 2025 17:22 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

For removing and installing valve cores in charged systems. Replace Leaking valve cores quickly and easily. Dual size to work on charge systems of R410a or R22 or other retrofit replacements systems. The valve core remover installer tool is made of s... read more

JNNJ 16Pcs Removal of Car Air Conditioning Pipe, Set Tools for Disconnect of Fuel Lines and Fuel Pipes, Car Transmission Oil Cooler Line Disconnect, Universal Air Fluoride Pipe Line Removal Tools

£10.99 (as of November 9, 2025 19:16 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

【Material】: This set product is made of premium quality plastic, which is high strength, good toughness, sturdy and wear-resistant, non-corrosive, ageing-resistant, not easy to break. It has a long service life for you, can be as standing accessarios... read more

PEUTIER 6pcs Tyre Valve Core Wrench Tool, Single & Dual Head A/C Valve Core Extractor Air Conditioning Line Repair Removal Schrader Remover for Car Bicycle Bike Tire RV Truck HVAC Air Conditioner

£7.25 (as of November 9, 2025 21:26 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Packing List: You will receive some valve core wrench tools in the packages, including 3 types of wrenches: 2mm/0.08in single head, and 2mm/0.08in and 3mm/0.12in dual head. Sufficient types can meet your daily uses and needs. Premium Material: Our wr... read more

Artibetter 5pcs Pipe Bending Spring Set Tube Bender for Aluminum Pipes Professional Plumbing Tools Air Conditioning Line Repair Kit

£10.39 (as of November 9, 2025 21:30 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Time-saving tool: by using this tubing bender, you time on bending tasks,steel tubing bender, bending tools Tailored for: this copper tubing bender is tailored for craftsmen who demand accuracy and reliability in their tools,copper bender,plumbing to... read more

SXRQ 16PCS Automotive Air Conditioning Hose Separation Fuels Line Disconnect Removal Tool Set With Storage Box For Car Repair Vehicle Maintenance Tool

£16.39 (as of November 9, 2025 21:30 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Ideal for professional auto repair technicians and vehicle enthusiasts who wishes to maintain or repair their vehicle's air conditioning and fuels systems independently Perfect for use in professional repair shops, home garages, or during emergencies... read more