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I own a 2006 Audi convertible A4 with a six cylinder engine.

I own a 2006...

I own a 2006 Audi convertible A4 with a six cylinder engine. There is an intermittent problem with the air conditioning system that only occurs on hot days and after approximately two hours of highway driving. The A/C cuts out and if I stop and turn off the engine for 15 or more minutes it comes back on as if nothing is wrong. If I continue driving for any length of time the A/C cuts out again. I have brought the car to an Audi Dealership and they could find nothing wrong because all they do is idle the car and the problem does not occur at idling speeds. The car runs perfectly except for this problem. Can you help?Paul G

Mechanic's Assistant: Have you checked the coolant level? Have you checked the hoses for leaks?

Yes

Mechanic's Assistant: Are you fixing your A4 yourself? What have you tried so far?

As indicated I brought to an

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3/24/2018
Wolfgang
Wolfgang, Audi master tech
Category: Audi
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Experience: Senior Audi Master Tech 15 yrs
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I do need the vin # to get the factory information to assist.

Thanks

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Customer reply replied 26 days ago
VIN WAUDT48H36K010798

ok any other recent word done to the vehicle before this issue?

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Customer reply replied 26 days ago
no

I have seen that the compressor itself . The valve tends to stick where the climate control will not store a code because electrically working fine but mechanically the valve is sticking. the only way is to get the compressor assy .

the only way to verify is to have it act up and hook the gages hooked up to the system with out turning off the car to verify the compressor not pumping then vag com scan tool hooked up where the measured value block readings of the amperage control displayed and if the amperage is reading .700mA or above and there is no pressure being built on the high side of the system you need a compressor.

anything else?

if not.....

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Wolfgang

Wolfgang
Wolfgang, Audi master tech
Category: Audi
Satisfied Customers: 5,075
Experience: Senior Audi Master Tech 15 yrs
Verified
Wolfgang and 87 other Audi Specialists are ready to help you
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Customer reply replied 25 days ago
Thanks it least have plausible answer

my pleasure

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Wolfgang
Wolfgang
Wolfgang, Audi master tech
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