I’ve watched about a dozen videos VW Jetta A/C troubleshooting. This video is hands down the best! The captions, the reading in the low side, removing the solenoid from the compressor. Very informative clearly understood. I’ll watch it again and again. Thumbs up!

I saw this on a VW forum a few years ago on an old laptop; I bookmarked it and lost the laptop. Thanks for putting it out there, RKX. Summer is coming on in southern AZ where I live and I'll get his little widget!

Just a PSA for those curious customers wondering if this is a sure fire fix. This is coming to you from an auto tech with 15+ years experience in the field. 7 of which were spent at a VW dealer. Presently, run my own German car repair center in the heartland of mandatory A/C: Miami, FL. Firstly, you must get a competent MVAC shop to properly diagnose your system. Many things can cause poor cooling. Finally, if it is confirmed to be the solenoid, understand that this will not be a permanent fix. It will get you by, 6-8 months, maybe a year. The trouble is these valves fail due to debris circulating inside the system from compressor wear. Not a knock on RKX, I have used a plethora of their products (vacuum pump reseal kits FTW). This is only a bandaid to buy you time. The long term, trouble free repair is to replace the compressor and drier/condenser assembly. (It is built in to the condenser.) What happens is as the compressor wears down, debris is pushed out the exhaust (high side), and finds its way inside this solenoid. With time, it just plugs up and seizes. The other issue is, as the compressor wears, it becomes less effective, so the solenoid is cycled more vigorously. This leads to premature wear of the armature inside the solenoid. TLDR, if you are on a budget, and a professional confirms the valve is bad, replacing it will buy you sometime, but another failure is in the near future. Replacement of the compressor, and drier/condenser assembly will guarantee another 50-60k of trouble free miles from the new unit.

This did the trick! VW mk6 variant 2012, 1,6 tdi 77 kw; first i thought there is not enough cooler fill (the car was able to blow cold air for like 10 seconds and after just blows hot air, in 30 C+), so i got it filled, nothing changed at all. Then the mechanc said to change the compressor for $$$ so i reached out to this video and this did the trick so far, THANKS, for fraction of the price like 1/5. The part number was - 5N0820803H - my clima control display unit says both AUTO and DUAL and the valve fitted the compressor just right.

Perfect solution to 2007 Rabbit... 4 yo compressor... would not blow cold at idle, only at highway speeds... replaced and did high side charge and COLD air at idle now! Thanks for your expertise!

Here’s a pro tip: you don’t need to do any of the following things recommended in the video: Take off the tire Move the wheel liner Move the serpentine Dismount the compressor. Just take the vertical dog bone mount out and pull back on the engine with a ratchet strap between the block and the subframe. You’ll have plenty of room to get the valve in & out.

Am an aircorndiction engineer and am very glad with u people the way you explain questions we ask congrats to bravoo

Siempre y cuando no haya partículas metálicas del compresor y además se recomienda cambiar deshidratador. Muy buen video 👍👍❤

Came to figure out how to fix my AC, stayed for the chill beats.

My A/C compressor on VW Passat pressure valve failed at highway speed in fast lane and it's thick fog vapor suddenly obscured all sight screening up from windshield vent port. Be quick with the windows in volume traffic. I had no idea such sorcery was possible; it's a smooth blind blowout.

He is correct, i had the same problem as his video. you don't have to take down the belt and the compressor if you willing to manuver the 90 degree snap ring plier. this video is clear explanation and steps. very helpful. thank you.

I did mine the other day for Mk6 Jetta. It fixed my problem. You may have to spray the area with penetrating oil and wait for a few min before trying to remove the valve since the o-ring and the grove get rusted and the plastic tab gets broken off if you try to pry it w/o the oil.

Just want to say thanks- I told a friend I was having ac issues and it would cost $1500.00 to replace. He sent me the link to this video. I bought the solenoid and had it installed by a local mechanic. It works great. total cost less than $200 installed. Awesome, thanks!

Ordered this brand put it on the car and now my ac works as it’s supposed to

Worth mentioning that some of these compressors have main shaft failure so a new valve won't solve that. Very important to check gas pressures and levels before making your diagnosis. Seems to be very difficult to get these valves in the UK

Just repaired my 2011 VW Jetta Sportwagen TDI. Symptom was outlet temperature that would go down to 38 degrees and then would go up to 55 and then back down again. This progressively got worse and finally the temperature for the most part would stay in high 40's to 50. I was able to remove the old solenoid from underneath the car. I first brought the car to an auto shop and had the refrigerant evacuated. I then put the car on jack stands, removed the lower panel, and was able to access the compressor. The only difficulty I encountered was I needed a 90 degree snap ring tool which I bought for $24 at NAPA. After replacing the solenoid I had the auto shop vacuum the system and refill with refrigerant ($87). I also cut open the old solenoid to look for debris as mentioned by a shop owner below but did not find any. I suspect the solenoid simply no longer actuated as my car now has a constant 35 degrees coming from outlet.

great video and accompanying music. thanks

Thanks, that's a good video for getting to know this procedure. Now, where do I get me some right-angle circlip pliers?

Great Video. Wish this was the solution to my MKIV GOLF

This worked like a charm for me. Ac blowing 41-42 degrees for me. I wish I was at 38 degrees. Could be the $8 thermometer

its sensitive to overfilling it, the temp will go up instead of down. I put 22 oz in it and it was blowing 50 degree air, after recovering a little refridgerant, it came right down to 40 degrees. 18oz is the spec.

i have pretty good intermittent cooling. But when I start the car, before the ac gets cold(it takes a long time to get cold) and ac running, I have a low side of 90 and a high side of 140-160. Do u think it's the valve?

Can i know what are the tools used? Especially to undo the compressor belt n tensioner?

great. needed check my system

That is how my 2012 passat 2.5 behaved before replacing the solenoid with a RKX one , it was hot at idle and cold at high RPM. After replacing it , the behavior was reversed : it is blowing cold at idle , and hot at highway speed( at high RPM, the compressor discharge pressure goes down to almost zero psi). I wonder if i have to replace it again...

Very help full video I like it

Awesome, thankyou:)

Hello! My Golf MK5 through VCDS and "hidden" Climatronic menu shows 9 to 12.5 bar pressure. Is it ok? What reading should I/do you get? I also have a failing G89 sensor that shows 0°C in the first 10 minute fromo engine start and prevents the compressor engagement. To replace it I have to remove ALL the dashboard (including steering wheel, radio, glove box etc...!), I'll try it later in august. I have "bad" air conditioning when the car slows down at the red light for example.

Turns out I need a EV 019 control valve can you confirm that the EV 019 and the PXE16 valves are the same?

My compressor pulley spins but not the centre part, which according to previous comments means my compressor has seized. However I can rotate the central part (inside the pulley) by hand and it rotates fine. Also I can feel some resistance like it is actually turning the compressor, so seems like my compressor is not seized. Any advice on why the centre part doesn't spin but I can still spin it by hand? Could this be caused by the solenoid valve or not?

Dame valve fits on audiq5 2010? The ac works but when starts sounds like a second engine :/

Please make a video Hyundai 2016 module compressor sensor replacement please sir

Thanks you for your video, I'd like to know do I have to remove the gas before replace the solenoid

Where do you guys get this PX designation? My Sanden is Model 1602 but seems like it should be the PXE16.

Need help with my ac I replaced the high pressure sensor g65 but still no aircon

Do I have to replace anything on the compressor, or all?

in the video doesnt appear how can you remove the gas inside the circuit, if you want to make it in your house and after go to a mechanic to reload the gas. either how to put again the belt with the tensor

Thanks for the video. Question, when you drain the freon, does it also drain the oil? Will it also need to be put PAG or R134A oil when re-filling?

PWM signal or duty cycle value during idle at soliniod should be?

a good video thanks

How to prove that the solenoid valve is not working , Being out there of the compressor, how can I test it?, tnks

Hello, I have a Jetta tsi 1.4L 2016, which ac compressor solenoid valve should I purchase?

Es necesario sacar el gas antes de hacer el cambio ? Y de ser así cuánto gas lleva el compresor al rellenar ? Jetta mk6 2012

Interesting thanks 👍

Isn't there an ohm reading you can pull off the solenoid plug to know for sure if it's bad

Far easier to pull the fan assy. Than to pull the compressor. More room too! Just a thought Steve

hi i have like this copressor have valve put may car in highways good put in stopping not cool did you think valve problem ?

❤❤❤❤greetings for u from Iraq

Seems these control valves can be troublesome! What are the causes of their failing?

I've been struggling with very very similar problem with my Audi A3 2010 HVAC since it went for the 60k(I guess) km periodic service. As soon as I took the car from the Audi dealership, grabbed the phone and called right away to say that was more than 30Cº outside and the car just did not cooled the cabin like before. Just didn’t made cood as before and could not cooled me inside the cabin. They regassed it, adjusted the vents, improved but was never like before. I live in Southern Europe and in Summer I get 40Cº days and this car when was brand new refreshed the cabin in 2 minutes of A/C working. Just from the start of the engine, even before it got to operating temperature, against what Audi technicians say (BS from them). Can a bad service ruin the solenoid or compressor ? I don’t know if this is my exact problem, but I should try it. Do any of you have the same problme as me and solved it replacing this solenoid ? PS :What makes me mad is that Audi technicians just don’t know how to diagnose this and they just replace the all compressor unit. They should be the first ones to know what’s wrong with the car. Thanks a lot you guys for letting this out to other people.

HI, great video. I am unsure if this is my problem with my 2009 Tiguan 2.0 TDI, but I get about 90 psi on the low side (a bit lower when the compressor is not running) and 100 psi on the high side (again, a bit lower when the compressor is not running. Also, not cool air. Could this be the solenoid valve or the expansion valve? Thanks for the help.

Where can I find that part , I am living in Houston tx

I noticed in the comments quite a few people had certain questions. First off when the tech evacuated the system, he removed all refrigerant from the system and stored it in a holding tank on his machine. After the repair he pulled a "deep Vacuum". This should be done for at least 30 minutes and preferably 1 hour depending on relative humidity. The more humid it is, the longer you need to pull vacuum. Replacement of the receiver/drier is optional as long as the system isn't open to air for more than 10-15 minutes, again depending on relative humidity. Pull the valve out, install the new one and pull vacuum right away. This can also be done on other brands of VW compressors. As far as over engineering goes, would you rather replace the compressor? You should also make sure your clutch isn't damaged before you replace this valve. I have seen numerous clutches broken where people install the valve then wonder why it doesn't work. Make sure first.

hi i have a question is this also a repair if ac wont give cold air when car has no movment or rpm with gas pedal, but when its on movment on 1500-2000rpm ??

Thank you for your valuable video. Will freon gas leak when replacing the solenoid valve? Is it necessary to extract freon gas before replacing the solenoid valve? Please answer

Great how too! Really appreciate it! Not to just suck it up and doo ett lol

The airco on my sons mk5 Golf does not work. Compressor spins and system has 525grams of filling inside. Both high and low pressure side have the same pressure. Between 2 and 3 bar's. Is it possible that it's just a defect valve? He measured the signal on the connector of the valve so that's okay. I see a lot of different valve's when i search on 'Golf mk5'. Different shapes (longe, short, wired connector, build in connector). Do they all fit or not? Thanks ;-)

Can you put something on the outside of the valve so it doesn’t?

Whats the likelihood of popping the solenoid out and using the extra room between fan blades to do it with compressor still in situ? Belly pan off, right angle circlip pliers etc

I have 2012 vw passat se 2.5l and the AC works only when the car is moving and even then it is not cold enough. A lot of people are saying the problem is the valve. Is it true? And can you help me find the part number? VW has one for $250 but I think that is too much

Nice video. I been diagnosing some problem with my cars AC to, Audi A3 3.2. When I drive the car it blows cold air but as soon as I come to a stop or the car is in idle, it just blows hot air.

Remember when mechanics fixed things instead of just replacing unnecessary expensive parts? They usually don’t even get a cut from parts.

There is an easy fix for the delay start ac, stops at idle, or low cooling. Remove the freon from the compressor, add approx 250 ml oil into the compressor, and than add the froen. The oil will lubricate the solenoid valve and ac will work perfectly fine. I have tried this method and well satisfied.

i have the 2006 jetta tdi. the ac started blowing warmish about a week ago. i thought maybe it just need a slight charge, but then figured out the fans aren't turning on as they should. would a bad valve cause the system to not turn the fans on or would something else have went bad. i checked the fuse box in the engine but have no idea what one in the panel in the dash side is for the ac. a cooling fan does kick on when the engine gets hot like normal, just not when i hit the ac button. any ideas here.

Excellent video, thanks! My ac sometimes gets cold air and sometimes not, as the same commented in the video, but when I get some expressway, highway, the air seems to start to freeze, can this be the compressor solenoid valve? The low pressure is close to 50 and the high is very high. I have a Jetta 2007 2.5. Thankyou!

Is this better than the solenoid from autozone for $90??

Did you took the freon out before proceeding , removing the solenoid? Or did you remove the solenoid without removing the freon ? I have a 2012 VW Jetta 2.5 SE and my ac does have this issues where it give cold air then blow warm air hit within 5 or 10 min while driving , it annoying.

what should the correct voltage be at the connector for proper operation? how about resistance of the valve itself?

I have a question about unit check of the solenoid valve, such as internal resistance or etc... Could you let me know how to check the solenoid with symptoms. thanks.

Clutch less compressor (Variable Displacement)help me growling Sound from AC compressor during idling with AC off , after switching ON AC no sound at all cooling is good but as I switch off AC or cabin reaches desired temperature sound again starts, is this bcoz of low compressor oil ?? (when refrigerant flows compressor has enough oil to lubricate and when AC off compressor doesn't have oil for lubrication as refrigerant flow stops(my theory)).. hyundai elite i20 any one help...pl

Bro How To check this wholou

Do you guys just refurbish oem valves? If so i would like to know exactly what you replace in the valve.

Can someone summarise the steps, I keep falling asleep half way thru. How does the solenoid go bad and how is the new solenoid better.

Como probar la válvula antes de montarla

Compressor trip which problem vento

i have a cc 2012 that i want to change this my self but do i have to take the freon out? what happens if i just take the selenoid out ?

Great, it seems no oil comes out when you remove the valve, whatever pools in the crankcase is in a lower level. Going to replace one on a Delphi CVC.

Hi! I was just wondering, if we dont have PAG oil on hand is it a deal breaker for the lubrication of the solenoid?

I have a built date 2009 AUdi TTRS with the 1K0820859R Sanden compressor. Do they still make reg valves for these models or should I just buy a new compressor unit?

I have this on my Sanden compressor and I understand how the volume is variable. But what controls the solenoid? Is it the heater fan speed?

does that valve stop the compressor from cycling, letting freon flow when compressor is over charged ?

Could it be the valve ??

That kinda sounds like my vw jetta 2015, the a/c some times takes forever to turn on, some times when im in the highway it turns on and when i turn it off it makes this weird noise that comes from the compressor but the sound only comes on when they ac has been on for a while and i later turn off the ac, could this also be a valve problem?! If so im buying one of your website.

Hello very good music by the way. I have a Audi A5 2.0t and my ac blows hot air even after I had it professionally vacuumed and refilled and it seems like the compressor turns on and still no cold air. Do you think it's the control valve? How do I test that?

I purchased this from Amazon for my 2008 VW Passat VR6 4motion wagon......super easy to replace, appears to have done the trick....38$s from Amazon.

Jakie były objawy?

Excelent

This was the replacement , but where is the diagnoises ?

Does anyone know the size of the snap ring/circlip used to hold the valve in place?

I think this is a shop thing because of the refrigerant has to be removed/installed

Hi A Big Question !! Toyota nz15 engine 1500 cc is my car . Got the A/C issue so I am going to do the same as you told . Question is -> do I have to refill A/C gas after replacing the valve ( my current gas level is in 100% accurate level )

My sonata ac runs fine and cold once i get my RPMs up to 4500. Can it be ac control valve ($17) or maybe clutch? What makes that clutch engage?

The vediois very beautiful and very educational but what exact car is he working would more good and will give more confidence

Will this work for a 2012 Passat with a 2.5 engine?

Does any one know if this has anything do with controlling when the fan assemly coming on?

I dont have to remove the belt or unbolt the compressor right ?

Did you not need to replace the drier for this install? I have a MK6 GTI and everyone is claiming the drier can't be exposed to air for more than a few seconds before it's saturated with ambient moisture. What's the solution/trick here?

I'm looking for cilanoid on a Sanden #1171. any idea what # cilanoid I need?

After I replace the solenoid do I just add 2-3 bottles of refrigerant?

Hi, do we have to replace the receiver drier too?