Bleeding air trapped in interior matrix

[Lth0ms0n]

Does anyone have any suggestions for what I can do to shift a stubborn air bubble trapped in the heating matrix of my GTD?

Last week it had a cam belt change + coolant refresh and since getting it back, I've had issues with no heat on the driver's side of the car. Prior to going in for this, the heating was working perfectly. Despite running the car + the bleeding program for it, I haven't been able to shift it.

I've already had issues with the matrix being blocked - it was remedied in August '21 with a new matrix from Nissen (not Denso) which has been used with G12evo coolant instead of G13. Like I said earlier, prior to the cam belt being changed, the heating was working perfectly, so this has to be trapped air...

I've got an OBD11 which I've been using to run the bleeding programs myself but I'm having issues getting the low-temperature circuit bleed to work (I get one of a few errors with it which I'm going to send to them to be investigated) but if anyone's got any suggestions on how to possibly overcome that, I'd appreciate it!

 

[salvatore_calzone]

my only thought is to try using ODIS instead of OBD11. can’t really offer any direct advice unfortunately because I have the gas engine, not diesel. in my experience there are test procedures/basic settings that are only in ODIS and the 3rd party tools might not have it, or, they have the basic settings but they either don’t work or there is no indication of what you’re supposed to be doing. for example - initializing the steering angle sensor to 0, I was only able to do it through ODIS. there’s nothing in OBD11 that tells you to turn the wheel 45 left, then 45 right, then straight, then switch off/on ignition, then do some more stuff, and finally you’re done. of course, I assume that VW has made it that way on purpose.