| Leak detection on the refrigerant circuit |
Note | t
| On the open market, numerous procedures are offered for leak detection on the refrigerant circuit. These procedures do not always produce accurate results. In case they are not carried out according to the instructions, it can happen that components of the refrigerant circuit appear to be leaking even though they are leaktight. In addition, during certain procedures, components of the refrigerant circuit can be damaged or initially damaged. |
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| If leaks are found on some components, they must not be repaired but replaced with original parts. |
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| If a major leak is suspected, do not fill the refrigerant circuit with the refrigerant R134a, see → Chapter. |
Caution | t
| It is prohibited to use chemical agents for sealing any leaks on the refrigerant circuit. |
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| If it is suspected that chemical agents have been filled into the vehicle refrigerant circuit for sealing any leaks, do not connect the A/C service station and do not drain the refrigerant. |
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| Chemical agents used for sealing leaks form deposits in the refrigerant circuit which impair the function of the air conditioning system and lead to a failure of the air conditioning system (and the A/C service station). |
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Note | t
| The company Škoda rejects the use of chemical agents for sealing leaks on the refrigerant circuit. |
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| Chemical agents (special additives) used for sealing leaks on the refrigerant circuit usually react to the ambient air and the humidity contained within the air. They lead to functional problems of the valves and other components with which they come into contact through deposits in the refrigerant circuit (and the A/C service station). These deposits can no longer be completely removed from the components. |
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| In most cases, chemical agents used for sealing leaks in the refrigerant circuit cannot be detected from the outside. The necessary sticker, which must be affixed for identification is often not present. Therefore be careful with a vehicle, whose past you are not familiar with. |
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| In the accessory trade containers are offered in which these chemical agents (for sealing leaks) should be deposited. Since the company Škoda rejects the use of these agents, no statement about the effectiveness and the deposition rate of these filters can be made at this point. |
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