Ford Fiesta Quiz
Climate Control System

Fluorescent Dye Leak Detection. General Procedures

In this manual: Climate Control System
Service Information — 27Suspension — 48Transmission — 9Brake System — 52Steering — 21Engine — 140Manual Transmission, Clutch, Transfer Case and Power Transfer Unit — 48Exhaust System — 6Fuel System — 21Climate Control System — 58Instrumentation and Warning Systems — 26Battery and Charging System — 20Infotainment Systems — 41Lighting — 29Power Distribution — 11Electronic Function Group — 30Body and Paint — 275Frame and Mounting — 3
5steps
~30min
2/5difficulty
Done 0 of 5

Special Service Tools / General Equipment

UV Leak Detector
Electronic Leak Detector

Leak Detection

Vehicles with A/C

  1. Read the following note for important information about refrigerant system dyes.

Fluorescent Dye Leak Detection

  1. Check for leaks using a Rotunda-approved UV lamp and dye-enhancing glasses.
  2. Inspect all refrigerant system components, lines and fittings.
  3. After repairing the leak, remove all traces of fluorescent dye using a general-purpose oil solvent.
  4. Verify the repair by running the vehicle for a short period of time and recheck the leak location with an approved Rotunda UV lamp.
    Use general equipment: UV leak detector
  5. If the leak is small, the dye may take some time to appear. An approved Rotunda electronic leak detector is also recommended. Refer to General Procedures — Electronic Leak Detection.
    Use general equipment: Electronic leak detector

Test yourself

A quick Ford Fiesta quiz: every answer comes with an explanation and a link to the manual page.