Air-Cond issues!!

[moondog]

Hi All!

I currently own a 2008 Polo Gti (9n3) and am having some issues with the car a/c system.

The a/c will stop blowing cold air after a 25-30mins drive. Pop the hood and notice that the a/c fan motor not running even if the a/c switch is on. Restarted the engine and the a/c will start blowing cold air again.

I've already replaced the a/c fan motor & compressor. Also, the a/c hose & valve were replace and the a/c gas been refilled. But I am still having the same problem.

Any kind soul here has encountered a similar problem or any idea what is the solution to it.

Thank you very much in advance.

[The One]

Have you checked the fan control unit?

[seangti]

Can you get the car scanned through the OBD? A mechanic should have OBD scanning capability, or see a dealer mechanic. Alternatively, get the paid version of VCDS to scan yourself - some info and price - Ross-Tech Store: VCDS. It should ascertain whether it's a mechanical or electrical fault in the system.

One of my polo's has a dying solenoid which seems to turn the AC off when I change the temp setting. By scanning, it tells me exactly what solenoid it is to save the fault finding hassle. So I can now search for a replacement solenoid and instructions on how to do the job (not that I have, I just don't change the temperature )

[moondog]

Thanks to both @The One and @seangti for your suggestions.

Finally got the a/c fix. My mechanic told me its due to wiring. Hopefully that could be one of the solution if others face the same problem.