Header Tank Silica Bag Fault

[rum4mo]

On 15/08/2021 at 22:33, varaderoguy said:

Tough words @rum4mo
 I'm always open when I've said something wrong. I agree that the silica is there to help with the lubicity of the coolant. I've deleted my previous posting. I'm not perfect. I was thinking about something else and got confused. My apologies if there was confusion.

 

I was just trying to set the record straight and not let anyone get misled by wrong info, by the way, the lubricity of the coolant is not what the silicate granules are there to provide, it is there to promote improved or continued anti corrosion properties as I think the coolant additive that uses/needs that pouch boasts to be low in silicates as an improved environmental "bonus" - well if/when the coolant leaks out.

I've never ever deleted a posting that I made that was proved to be wrong, editing yes to correct it so that no new reader ever reads it in its initial form, that is okay, but deleting it after it has probably been read by many people is not really good public forum etiquette - I think, again I could be wrong there.

Onwards and upwards.

[navramov]

I also went though the Silica bag burst saga... Unfortunately it not ending after replacing the expansion tube. I had my heater matrix replaced as well, since the heating has stopped working completely. This fixed the issue for a while, but now the problem is back again - there is so much of this stuff all over the system. I had it flushed a few times with water and the heater matrix is still getting cluttered. 

 

To make it even worse, the car overheated on the highway because of broken segment connecting to the coolant pipe, right before the entrance to the cabin... Not sure if it is related, but this issue looks like never ending hell.

 

One more thing I noticed is that ever since the heater matrix started getting vlocked i am getting reading for the Oil temperature (I enabled the display using Carista) as much as 130 degrees. Before i was never going above 110.

 

Skoda Octavia 1.6 TDI 2014 'Mit Silicat' 

[EnterName]

7 hours ago, navramov said:

I also went though the Silica bag burst saga... Unfortunately it not ending after replacing the expansion tube. I had my heater matrix replaced as well, since the heating has stopped working completely. This fixed the issue for a while, but now the problem is back again - there is so much of this stuff all over the system. I had it flushed a few times with water and the heater matrix is still getting cluttered. 

 

To make it even worse, the car overheated on the highway because of broken segment connecting to the coolant pipe, right before the entrance to the cabin... Not sure if it is related, but this issue looks like never ending hell.

 

One more thing I noticed is that ever since the heater matrix started getting vlocked i am getting reading for the Oil temperature (I enabled the display using Carista) as much as 130 degrees. Before i was never going above 110.

 

Skoda Octavia 1.6 TDI 2014 'Mit Silicat' 

I'm sorry you've had such a bad time with your silica bag.

2014 seems to be a recurring year for silica bag problems.

Did you get any support from Skoda towards the cost of sorting it out, or did they play the "What do you expect? It's an old car!" card?

[navramov]

2 hours ago, EnterName said:

I'm sorry you've had such a bad time with your silica bag.

2014 seems to be a recurring year for silica bag problems.

Did you get any support from Skoda towards the cost of sorting it out, or did they play the "What do you expect? It's an old car!" card?

Actually no one has ever heard of such bag here in Bulgaria. I spoke to the manager of the dealership, with VW dealership as well. They were almost laughing and saying there is no such thing, just because in the latest cars it is removed...

[EnterName]

10 minutes ago, navramov said:

Actually no one has ever heard of such bag here in Bulgaria. I spoke to the manager of the dealership, with VW dealership as well. They were almost laughing and saying there is no such thing, just because in the latest cars it is removed...

It must be reassuring to have such well-informed dealers to support you.

[Deck081]

I was informed today mine has the issue MY16 VRS 4x4 whilst it was in for an oil service. As there is no internal to service the coolant this is a design flaw that should be picked up by skoda\VW even if the vehicle has no warranty! It’s a matter of time before it happens unless you are very lucky! 
 

im booked in for a full flush on Wednesday I’m hoping this doesn’t get ugly.

[paulski]

@Deck081, wishing you all the best with the flush. I had mine (2016 2.0 TDI) flushed twice by my independent, and it got some heat back.  its done 15k miles since and the coolant in the expansion tank is still fine. But I check it monthly since the issue occurred. I had the expansion tank replaced at the same time, cost me £120 all in. 

[Deck081]

@paulski I haven’t lost any heating yet which I suppose is good news or I haven’t noticed because I have heated seats!

[FrankLK]

After removing the bag, not related but the water pump leaked, pump was replaced under waranty but I requested to replace coolant with new G12 EVO and they did.

 

 

[YMe]

I'm confused now. If my expansion tank doesn't have "mit silikat" on it does this mean that it does not have either the "tea bag" silicate or the separate silicate container built into it?

[hhcd80]

47 minutes ago, YMe said:

I'm confused now. If my expansion tank doesn't have "mit silikat" on it does this mean that it does not have either the "tea bag" silicate or the separate silicate container built into it?

Probably means you are OK but someone else can confirm.

As for me I'm lucky. The tank does say "Mit Silikat" but a local VW Group independent specialist mechanic looked at it and said there was no sign of the bag anywhere so I guess the last owner had it removed before it found it's way into my hands.

[3rdoctavia]

I had my engine flushed and the tank replaced under the approved used warranty.

 

I know the flush is expensive due to the labour but does anyone know what it involves.... does it actually take someone being with the car for 8 hrs or is it a case of set it going and come back when it's done ????

 

I have a mate who got paid overtime as an apprentice plumber for draining a big header tank at a school. All he had to do was turn the stop **** off and then turn all the taps on ...he then sat and watched tv all night whilst getting paid a full shift 😄

 

[SC03OTT]

I’m howling at stop **** being censored 😂  

[Breezy_Pete]

Pretty sure I read somewhere - probably on Brisky - that the flushing involves a large number of iterations of fill, run around, drain.

[3rdoctavia]

1 hour ago, SC03OTT said:

I’m howling at stop **** being censored 😂  

No doubt I'll be kicked off the forum now... been nice knowing you all . I'll get my coat 🤣

[lauriemegson]

hello

has anyone on here challenged VW group on small claims court and had a good outcome on this subject

many thanks in advance