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Old 03-18-2019, 07:18 PM   #67
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Quote:
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Yes sir! Pulled a vacuum of about 20mmHg. We shut off the vacuum, and let it sit for about 15 min to verify the vacuum held. No leaking noticed there. After that, we turned the car on, a/c full blast and tried to fill. Barely moving. Tried turning the car off as well. It just would not take. We pet it go for a good 15 minutes and didn't even get through half a can.
FWIW pulling vacuum down to 20 is not so good you should be going for 30 and then stop vacuuming and see if it holds, then after 10-15 minutes start vacuuming again and repeat. What you are trying to do is boil off the water in the system and pull a deep vacuum. A micron gauge is a great tool to see how much the pump can actually pull vacuum and see how inaccurate the gauge set is.

The system can be charged from the high side but you need to know what you are doing and you do not do it with engine running and AC on and some other things that need to be done.
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Old 03-18-2019, 08:58 PM   #68
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This was done through the low side, just to clarify. But as far as the deep vacuum, we used the best we had. I'm curious now as to why it would not take any more. I figured it probably filled the low side, and since the compressor was not running, could not get it to send to the high.
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Old 03-19-2019, 12:39 PM   #69
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So, just ordered the OBDEleven for arrival tomorrow. I plan on running a full scan, but what blocks should I be paying specific attention to? Obviously the compressor and A/C related, but would there be anything on the engine module, like fans? Thanks!
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Old 03-19-2019, 01:30 PM   #70
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So, just ordered the OBDEleven for arrival tomorrow. I plan on running a full scan, but what blocks should I be paying specific attention to? Obviously the compressor and A/C related, but would there be anything on the engine module, like fans? Thanks!
Do a complete scan on car and save it for future reference and post up results between code tags.

Output test for fans will be in engine module, perform with engine off.
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Old 03-19-2019, 01:32 PM   #71
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Schwing! Will get right on it once it comes in!
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Old 03-19-2019, 01:59 PM   #72
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I just saw this thread. As far as the fan not working, it very well could be the brushes have got stuck. If this has happened it will not show a code. I went through this last year and just replaced the whole fan assembly at the cost of somewhere near $90. There are photos on my thread "GTI on the Cheap".
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Old 03-19-2019, 02:17 PM   #73
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I just saw this thread. As far as the fan not working, it very well could be the brushes have got stuck. If this has happened it will not show a code. I went through this last year and just replaced the whole fan assembly at the cost of somewhere near $90. There are photos on my thread "GTI on the Cheap".
Holy crap, that is an amazing thread! Good on you for keeping it going! I did notice that when the large fan eventually kicks on, it sounds like a jumbo jet taking off. Hella loud! The little fan never cuts on, so it most likely needs to be replaced. Unless there is some switch/relay that keeps it from turning on if the compressor isnt on.
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Old 03-19-2019, 04:23 PM   #74
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If one runs at max speed and the other not, it means it's toast. However it's not your problem since you have one running intermittently. Yes, scan the car, full scan, you will see what shows up.
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Old 03-19-2019, 04:49 PM   #75
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Almost makes me scared to do a full scan now, lol. God knows whats going to show up.
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Old 03-19-2019, 06:04 PM   #76
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Almost makes me scared to do a full scan now, lol. God knows whats going to show up.
Check your PM
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Old 03-19-2019, 06:12 PM   #77
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Check your PM
?
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Old Yesterday, 08:49 PM   #78
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So, was driving and noticed the a/c was hissing a bit. Not sure exactly why, no difference in temp. Still waiting on cable. But here is what the codes we're, red are differences. On 11-3 while hissing it was flashing double 0 to a little 1 on the far right. Any clues?this be the evidence!
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Old Today, 03:37 AM   #79
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00 and 1 flashing means 100. Not sure what 11-3 is though. It probably has something to do with the solenoid, usually I look at 11-0 and 11-1, but maybe 11-3 is the actual value of the solenoid.

Hissing is a symptom of low refrigerant when it works, mine did it too (if we speak about the same thing). If it continues to make this noise, get is charged again.
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Old Today, 09:01 AM   #80
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Have you tried

"Climatronic Self-Test

System Self-Test

The system self-test will query all the components of the Climatronic system to make sure they are all operating within spec. System Self-Test mode can be activated by pushing the ignition key to the "run" position (the engine does not need to be running) and turning on the Climatronic unit, and then holding down the "ECON" button (this may be marked A/C, depending on the year of your car) and the Foot Vent or "Down-Arrow" button at the same time until both of the temperature displays show "iO", a common abbreviation in German for "in Ordnung" which means "OK" or "Operating Normally" (if you have a later Climatronic unit without temperature LCDs, this info will be displayed on the LCD of your stereo head unit).

If an error is encountered error codes will be displayed as a hexadecimal number in the left hand temperature display. You need to convert the hex code to decimal (you can use an online converter like this one). Then you can take the decimal equivalent of the code and check it in the Ross-Tech Wiki URL. For example: hex code 0E5 = 229 in decimal = http://wiki.ross-tech.com/wiki/index.php/00229 in the Wiki, which is the VCDS page for the coolant fault pressure.

A list of hexadecimal error codes and their descriptions follows:

0E5 Coolant pressure
1BD Loss of Refrigerant
119 Driving Speed Sensor
214 Supply Voltage (B+)
21A Reference Voltage
510 Temperature Sensor for Body-Directed Airflow (1296)
511 Temperature Sensor for Leg-Directed Airflow (1297)
30B Temperature Sensor for External Temperature at Fender
311 Dashboard Temperature Sensor
313 Fresh Air Intake Duct Temperature Sensor
332 Evaporator Temperature Sensor
333 Coolant Pressure Sensor
318 A/C Pressure Switch F129
31C BEMO(?) for Temperature Sensor
31D Solar Radiation Photo Sensor
382 Compressor Outlet
4F7 Air Flow Flap Positioning Motor (V71)
4F8 Central Flap Positioning Motor
4F9 Fresh Air Blower
4FA Faulty Recirculation Flap Positioning Motor
25B Positioning Motor for Foot/Defrost Flap
4B6 Service Life Signal
538 CAN-Bus
513 Gateway
53D Estate
4AE Gateway Database Version
414 Control Unit Not Programmed
43F Basic Setting Not Executed
62E Coolant Temperature Sensor Signal
94B Positioning Motor for Left Side Vent (V299)
9CC Temperature sensor for Refrigerant (G454)
000 No more codes to read
444 No errors"
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Old Today, 09:30 AM   #81
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Nice!! Will try that out shortly!
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