Dimitar Timev
Member
Hello all.
I have a problem with my air con system. At my local garage the mechanic tested the system for reaks ,and he can't find any Also the system i charged with fresh r134 500grams. But no luck to make it working. We also chek the main cooling fan ,and its working on both speeds.
I have check for errors in hvac system with vag com lite and all is clear.
The mechanick that tested the ac system is suspecting stuck n280 valve.
My question is how and where i can chek with vag com is the ac compresor (n280 valve) reciving the signal to turn on?
I have looked in engine ecu in messuring blocks group 050 and in condition of AC system is OFF ,operationg condition of AC compressor OFF ,but those values are not changing at all even when i press the ECON buton on or off.
So what to do now.. how can i chek the electrical integrity of the AC system ,or is my N280 valve stuck close. But if the valve is stuck close ,were i can chek is the the ecu trying to control it?
I have a problem with my air con system. At my local garage the mechanic tested the system for reaks ,and he can't find any Also the system i charged with fresh r134 500grams. But no luck to make it working. We also chek the main cooling fan ,and its working on both speeds.
I have check for errors in hvac system with vag com lite and all is clear.
The mechanick that tested the ac system is suspecting stuck n280 valve.
My question is how and where i can chek with vag com is the ac compresor (n280 valve) reciving the signal to turn on?
I have looked in engine ecu in messuring blocks group 050 and in condition of AC system is OFF ,operationg condition of AC compressor OFF ,but those values are not changing at all even when i press the ECON buton on or off.
So what to do now.. how can i chek the electrical integrity of the AC system ,or is my N280 valve stuck close. But if the valve is stuck close ,were i can chek is the the ecu trying to control it?