Skoda Octavia A/C diagnosis Variable Displacement Compressor Fault
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- Опубликовано: 11 сен 2024
- In this vieo you will see how I conclusivly prove a faulty variable displacement compressor.
I replace the original Delphi compressor with a Direct Fit MAHLE Compressor.
www.mahle.com/...
The Diagostic tool used in his video is available from
www.launchtech...
Great video. thanks for the upload I used a tool called a CLT-1 that connects directly to the battery and then to the compressor, you can actuate the actuator and gives the compressor a PWM signal. I haven't had a chance to use it in a real case, but have used it on my partners car and it works really well. you can cycle it between 4% - 100%.
Another real world video. Thanks, really enjoyed and learned a couple of things
Great video. Very comprehensive explanation.
Great video as always, well explained step by step 👌🏻
Great video, real helpful!!!!!
Had a 2005 A3 where the climate control would never blow cold, but sometimes if set to manual it would. The ambient air temp always showed very low readings even when say 20 degrees outside.
Had the car into several places, not 1 of them had a clue.
This would be a good video to see, that is if one of those cars ever came into you workshop.
Very impressed with your diagnosis and repair
I like the Mahle stuff too. Never had a problem. As you say stay away from the unbranded stuff. 👍😁
Thank you for posting this stuff .Great job.
Great assessment into the real cause
Very good 👍
I was wondering, when you evacuated the system 11g of oil was also drained.
Do you catch that I a separate container (that you can examine for swarf) or can it potentially be reused in the same or other car?
Fantastic video buddy and really well put together 👍🏼
I didn't manage to notice but with the old compressor fitted did the radiator fans kick in once the a/c button was pressed to on?
No, there was no reaction by the vehicle to the AC button being pressed.
Just a point here though, this is the beauty of variable displacement compressors, they don’t have the system running at full belt so often the fans don’t need to run. Less load on engine, less fuel consumed, less harmful emissions. Win win win
@@intelligentauto737 aaahhh right am with you, thanks for the explanation. 👍🏼
Thanks for sharing mate. great info
Perfect as always Gary!
Did the new compressor came whit the note that oil is not in the unit
Most of the time they came whit oil filled in them
What is the running low pressure side of a variable compressor
Nice. I wonder if the old unit is seezed inside due to lack of use?As you say it's that time of year again.
How would I kno the right amount of gas to put in a variable compressor
Good video showing the diagnosis process. 1 question however did you check the solenoid valve in the compressor, these have issues on many of the VAG vehicles. It may have just been a faulty solenoid and not the internals of the compressor at fault ?
Using a power probe I energised the solenoid, I could hear the audible click of the plunger moving.
This compressor had a drive issue.
The spline drive was non existent
Clicking of the solenoid doesn't guarentee the plunger inside moves. You could remove the solenoid and apply 12 volts and by using a balloon of air find out if the plunger moves. I had this experience with my denso compressor solenoid. New solenoid is ordered.
Good video did the coolant fan try coming on before the ac compressor replacement
Hey, i got the same problem but, sometimes like 1 in 15 times it start.. but after 10 minutes it shut off.. . What do you say, is a compressor fault? Everything match the video.
Gary can i ask 2 questions. As its power side switched is there a danger to the ECU in supplying 12 volts to that cable during testing? And as you put oil into the compressor before fitting is there a risk that your machine will suck some of that back out when it does it Vacuum test before filling with gas?. Thanks again for this video a great watch as always.
No danger at all putting 12v to wire that ultimately supplies 12v. You would put jump leads from one battery to another I’d assume?
90% of the oil in an AC system is held within the compressor, by me turning the compressor it’s getting oil into the body of the compressor rather than into the cylinder of the compressor.
No more risk in vacuuming a system that has its original compressor fitted
If you recover & vac from the LP port there’s less risk of extracting oil from the system as most of it lives on the HP side of the compressor & in the Condenser
@@intelligentauto737 thank-you for taking the time to reply. 👍
@@the_retired_mechanic you’re welcome
Hello sir. I have skoda octavia 2007. AC is not working.
Mechanic told compressor needs to change. It's cost is 45000, is there anyways to do this. In less cost.
AC cycle On&off with blower on or off or not
Thanks Teacher 👍
Why is there power side pulsewidth modulated instead of a ground side like in most cases?
I have trouble with ac variable comoressor on bmw e90 2005 320d when i turn on ac it doesnt activate valve. (Warm air comes out). But when i use diagnostic tool ista+ i can activate valve for a second and pressure changes cold air starts blowing. Any idea what might be an issue?
Love your vids. Are you using recycled refrigerant for recharge? Does the compressor manufacturer not require receiver/dryer and expansion valve service?
The Texa Machine I use has a refrigerant quality sensor inbuilt, it won’t recover contaminated refrigerant so anything that’s recovered is 100% pure
The system was not leaking and pulled and held vacuum at 1mbar so that would indicate the desiccant was not saturated in the dryer.
Always good practice to renew receiver drier when system is opened to atmosphere.
Thanks
If I see correctly on a pulley on an old compressor bolt is missing its T30 if I remember correctly. But it's an M6 bolt. Just a little bit of lock tight and bolt will fix this one. That's a common problem. Most of them just came loose...Cheers.
Can't say I could see that in the video. Not sure how you seen that???
No bolts or fixings were missing from the drive puppy I can assure you
@@intelligentauto737 It looks like there is no bolt-on pulley but for sure you see better. Anyway nice content keeps them coming!
It does look like a bolt is missing
@@chekelley6861 I can assure you not bolts were missing
lost sound at 3.20?
I’ve watched this all way through and no loss of sound here. Check your connection
comes back on at 22.00
You’re the only one having issues it would seem
It's working perfect.