Hello everyone,

 

I've read many similar posts, but specifically, I haven't seen my issue anywhere.

 

It's a January 2014, 1.8TSI Skoda Octavia Hatchback. It only blows cold air on both sides.

 

The water pump was replaced about 3 months ago. The heater radiator, expansion tank (silicate bag-free), and antifreeze (G12) were also replaced, but it didn't solve the problem.

 

I took it to a BOSCH service center to find the fault, but they couldn't. They "flushed" two hoses that were a bit clogged, but there's still no change. They just said that somewhere in the system, it's still blocked. I'm starting to feel a bit puzzled. Does anyone have experience with such an issue?

 

Additional info: I received advice in another group that maybe the N82 Coolant Shut-off Valve has failed. How likely is this?

 

Thanks in advance for reading and if you can help.

Have a great day ahead!

Hello marko 

 

If it's the same valve, my 2015 2.0 TSI had the same symptom back in 2018 - no heat in the cabin.  They (Skoda) referred to it as being the 'Coolant Check Valve' and I was told it was reporting being open, when it was in fact closed.  I tried to get to the bottom of whether this valve was a factor in my turbo grenading itself, but all I ended up with was awkward moments with Skoda staff shutting up and shuffling away as quickly as they could:

 

 

 Gaz

 

Edited 4 December, 20232 yr by Gaz

The complication of these vehicles is increasing well beyond the competence of the poor mechanics expected to fix them and the cost to the hapless owners of the misaimed parts & labour cannon rises exponentially.

 

I dread to think how much the OP has been taken for so far 😒

 

Its time that the training and occupation of vehicle mechanic was elevated from the craft intake, technician in a few cases to higher than that of a surgeon or lawyer.

 

The N82 valve sounds probable.

Hi all, 

 

Thank you for your replies and sorry for the late reaction.

 

@Gaz I'm sorry to hear what happened to you; it must have been a tough time. I hope there have been no issues with the vRS since then, if you still have it. Can it be known retroactively whether only that small valve was responsible for the heating issue? Or were more parts replaced in this regard?

 

@J.R. As a layman, I also see that the capabilities of vehicles and mechanics do not develop at the same pace. 

 

Yesterday, I tried it again during use.
I reset and recalibrated it based on the video below.
Progress: I turned up the temperature to the maximum, then gradually increased the fan speed. No air came from the middle 2 vents. On the passenger side, it blew cold air, and on the driver's side, it blew warm air for a short time (about half a minute), which gradually cooled down.

 

https://youtu.be/MRa6c9UfyEs

 

1 hour ago, marko97 said:

... if you still have it. Can it be known retroactively whether only that small valve was responsible for the heating issue? Or were more parts replaced in this regard?

 

Thanks 🙏  I no longer have the vRS.  It was a bit of a duff experience, and I decided to change.  Lots of parts were replaced and it felt very much like the parts and labour cannon to which @J.R. refers, was used.

 

Ironically the actual fault was found, after many replaced items, by good old common sense and hands on mechanic'ing, with the realisation that a hose which should have been hot, was actually stone cold 🙄  As to whether the resulting farce would've happened had the fault been identified correctly in the first place, who knows.

 

Gaz

Edited 5 December, 20232 yr by Gaz
Added a comment.

42 minutes ago, Gaz said:

Ironically the actual fault was found, after many replaced items, by good old common sense and hands on mechanic'ing, with the realisation that a hose which should have been hot, was actually stone cold 🙄  As to whether the resulting farce would've happened had the fault been identified correctly in the first place, who knows.

 

 

Probably that hose did the trick. If you think about it, you had a few parts replaced and the problem still existed. At the end did they replace the hose, or they've just flushed it(don't know if it's possible)? 

 

I found a heating matrix in several posts here on the forum, where you can see the location of the N82 valve. I'm wondering if that pipe could have been the issue.

Could you possibly tell me roughly where that pipe with the problem might be located?

14 minutes ago, marko97 said:

 

Probably that hose did the trick. If you think about it, you had a few parts replaced and the problem still existed. At the end did they replace the hose, or they've just flushed it(don't know if it's possible)? 

 

I found a heating matrix in several posts here on the forum, where you can see the location of the N82 valve. I'm wondering if that pipe could have been the issue.

Could you possibly tell me roughly where that pipe with the problem might be located?

 

The hose wasn't replaced as it was not at fault, but it being cold led to finding the reason why hot water wasn't flowing through it when it should have been.  Very sorry but I've no idea which hose, nor where it was.

 

G

Some update again: 

 

I recalibrated it, so now I managed to get warm air through every vent. Although the blown air was warm, I don't think it matched the set temperature (it was set to the maximum). Currently, my issue is that it takes a long time to blow warm air, and I THINK the temperature of the blown air doesn't reach the set temperature. Do you have any suggestions for this?

 

Thanks in advance!