Failure of climate control at low speed / ambient temperature.

Hi,

I have noticed the following symptoms on the (few:-( ) hot days:

Coolant loss approx. 300g --> Refilled to 700g (basic Climatronic)
At high ambient temperatures:
Intermittent shutdown and restart of the air conditioner compressor when the idle speed is reached. After prolonged use, no cooling performance at low speeds, and good cooling at speeds of more than approximately 2500 rpm. Unfortunately, I haven't checked if the compressor is overheating.
No fault codes detected!!!

I finally managed to get this resolved with Ford (but I had to negotiate for a long time with the salesperson), but they were unable to identify the issue.
I think the problem always occurs at high temperatures (maybe because I only use the air conditioning for longer then?). And we currently have around 17 degrees Celsius here in the north. But my problem is that I can't wait until next summer for the repair, because then the warranty will expire. How or where can I get a high ambient temperature? Workshops/Climate specialists who have a 'cooling chamber' to test air conditioning systems?
Or could someone identify a typo based on the symptoms?


Thank you and best regards.

Sirecki

[Translating...]

Hallo,

wie wurde denn die Fehlmenge (300g) bestimmt?
Hast du irgendwelche Druckwerte über das System?

[Translating...]Die Menge würde beim Evakuieren und Wiederauffüllen bestimmt (laut ATU).
Druckwerte habe ich keine, aber könnte ich die mit VAG-COM auslesen?

Gruß Sirecki

[Translating...]Könnte auch daran liegen, dass der Druck in der Anlage zu hoch ist.

Ursache ist meist ein verdreckter Kondensator bzw. ein defekt Lüfter (evtl. auch die Ansteuerung).