Evaporator replacement nightmare

McGuirk

Veteran Member
Joined
Aug 30, 2012
Location
Florida
TDI
Audi A3 TDI
Just replaced the evaporator core on my Audi a3. Figured I'd post a little about it just for reference on in case others needed advice on how it's done. First bit of advice is to get the factory manual from Erwin. The dash needs to be pulled, the steering column needs to be dropped, the center console needs to be pulled, the front seats need to be removed, the carpet needs to be pulled back, then you have to remove the dash cross member. Once that is done you can remove the whole AC assembly out of the car. This allows you to then separate the top from the bottom and extract the evaporator. Install is reverse of removal.

I thank God that I was able to do this. I know most would have not gone through this on a car with 140k but I got it at such a good price and wasn't willing to give up. AC blows cold now.

All this because of a botched TXV replacement and they damaged the evaporator lines during the install. When I went to replace the TXV myself after putting in a new compressor and condenser I was unable to pull a vacuum. Total time for the job was about 30hrs. Feel free to reach out to me if anyone is deciding to do this job. I'll try to post some pictures in a few days.
 
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McGuirk

Veteran Member
Joined
Aug 30, 2012
Location
Florida
TDI
Audi A3 TDI
Felt good. Then I had to deal with a reference voltage short issue that froze all my blower door motors in place. Just for FYI the glove box connector and the feedback plug for all the AC door motors are keyd the same and located near each other. Make sure you connect those in the right spot.
That's what you get when your working till 1am re installing a dash so you can drive to work 😂
 

Rema1000

New member
Joined
Aug 1, 2024
Location
Utah
TDI
2013 Audi A3 TDI (8P)
Hey there! I'm wondering what symptoms you were experiencing that led to the txv replacement. Also, is this an 8P?
 

McGuirk

Veteran Member
Joined
Aug 30, 2012
Location
Florida
TDI
Audi A3 TDI
Symptoms were not being able to pull a vacuum on the system which makes the whole system unable to hold a charge. TXV was visibility damaged on the engine side where it mates with the line set. Yes this is an 8p 2011 A3 TDI.
 
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