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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> Air Conditioning (Refrigerant R134A Servicing) (2 Of 2) >> 87 Air Conditioning >> Refrigerant Circuit >> Refrigerant Circuit, Determining Leaks >> Leak Detection On Refrigerant Circuit Using Leak Detection Kit :Vas6201A >> Add UV-Leak Detection Additive using the in the Refrigerant Circuit

Add UV-Leak Detection Additive using the in the Refrigerant Circuit

Special tools and workshop equipment required 

The :VAS6201A  includes the following tools. Refer to the Parts Information (Tools; Special Tools and Equipment: A/C and Heating).

Fig 1: Identifying Leak Detection System VAS 6201
GWWA87-0494Courtesy of AUDI OF AMERICA, LLC
  1. Leak Detection Kit - Hand Pump w/Cartridge :VAS6201/1 
  2. Leak Detection Kit - Cartridge :VAS6201/2  (with UV-leak detection additive)
  3. Leak Detection Kit - Cleaning Solution :VAS6201/3 
  4. UV Leak Detection Lamp :VAS6201/4A 
  5. Leak Detection Kit - Eye Protection :VAS6201/6 
  6. Leak Detection Kit - Label :VAS6201/7 
  7. Leak Detection Kit - Filler Tube :VAS6201/8 
  8. Leak Detection Kit - Hand Protection :VAS6201/9 
NOTE:

Described in the following are instructions for how to pour the UV-leak detection additive into the refrigerant circuit using the Leak Detection Kit -VAS6201A-. If the UV-leak detection additive is added to the refrigerant circuit with the help of other tools (for example, with the A/C service station) read the applicable operating instructions.

The following is the given amount of UV-leak detection additive that is to be added to a refrigerant circuit with a refrigerant oil quantity of 100 to 150 cm 3 using the Leak Detection Kit -VAS6201A- (2.5 ± 0.5 cm3 ). If the refrigerant oil capacity in the refrigerant circuit is larger, then more UV leak detection additive must be added accordingly (for example, 5.0 ± 0.5 cm3 for a refrigerant circuit with a refrigerant oil capacity of 250 cm 3 . For the relevant refrigerant oil quantities in the refrigerant circuit. Refer to REFRIGERANT R134A CAPACITIES, REFRIGERANT OIL AND APPROVED REFRIGERANT OILS .

If the UV-leak detection additive is added to the refrigerant circuit with the help of other tools (for example, with the A/C service station), observe the prescribed quantities of UV-leak detection additive given in the corresponding operating instructions.