VW Golf 4 1.6 16V 02r Climatronic Air Conditioning: Evaporator Levers, Compressor & Pressure

Hello, I got a golf 4 1.6 16V 02r. Climatronic with poor air conditioning. Version without air-conditioning, added as it turned out later. Fans start, compressor too, pressure rather good HP16 bar. LP2.2 bar. The pipes behind the expansion valve are cold, there are no errors in the climatronic, and warm air from the supply is around 27 ° C. After thinking, I got to the evaporator and heater housing and it turned out that one of the levers from the bottom under the heater from the air flap fell out. After putting it on, there was an improvement and the temperature in the middle grate went down to 20 ° C with the setting on the climatronic 18 ° C. Descending to the max. cooling temp increases. I will add that the temperature on the cliatronics display is at 20 ° C and does not budge, and today it was around 30 ° C. I also noticed that the condenser was put on by someone a bit smaller than in the original, but I do not know if this is a problem. I will also add that when I tightened the hose supplying the heater, I managed to go down to 17.9 ° C, but it was still not enough. in the heat fight I decided to relax. Maybe someone has some ideas, I am asking for help for which I thank you in advance.

Hello. I wonder if the air flap closes tightly because maybe the sponge has crumbled and some of the air continues to flow through the heater.

It may be like that, buddy, just how to check it without taking the whole case apart. Something is wrong, either with air conditioning or with heating. The worst thing is that it is an addition and it is not known if someone did it right.

Without undressing it will be hard, I have a camera to preview in difficult places, you can see through any gap and here ........ In older models there were very often problems with these flaps inside because the sponge and air spilled despite the closed the flaps blew warm.

Added after 5 [minutes]:

Although if you think about it, something with this flap is wrong, because if you closed the circuit through the heater and the temperature dropped, it must be open or leaky.

Hello, the owner of the car agreed to continue searching, so tomorrow I'm taking out the entire heater and we'll see what's wrong.

First, deal with accurate temperature readings. Because the climatronic has operating characteristics depending on the outside temperature and the internal temperature it sees.

Hello, the reason for the poor operation of the air conditioning was a non-closing air flap (warm-cold). After dismantling the heater housing, it turned out that it was blocked by a piece of broken plastic. Now the air conditioning is working properly. Thanks for all the hints.