Anyone come across the bag of silica crystals cooling problem in their Karoq?  There is an article in the 1st March Car Mechanics (UK). Apparently a reader had the bag break causing cooling problems in their Ateca.    

 

There appears to be some posts here on Briskoda but mainly regarding Octavias. 

 

Another thread similar to the one mentioned in the article https://www.seatcupra.net/forums/threads/removing-silica-bag-from-coolant-header-tank.470769/   mentions a marking on the header tank 'Mit Silikat'.  My Karoq's header tank doesn't have this marking.

 

tom 

No bag in my November 2020 Karoq 1.0TSI

3 hours ago, Smokeyjoe said:

No bag in my November 2020 Karoq 1.0TSI

 

Same here on my 2018 1.0 TSI

 

I did not see "mit Silikat" on the coolant tank

Mine is a 2019 1.5 TSI.

No "mit Silikat" stamp, no bag, G13.

I really don't understand this. Silica gel is used to remove moisture, so what on earth silica gel is supposed to do in a header tank full of water, I just don't understand.

16 minutes ago, Routemaster1461 said:

I really don't understand this. Silica gel is used to remove moisture, so what on earth silica gel is supposed to do in a header tank full of water, I just don't understand.

My understanding is that it was intended to slowly add silicates, extending the anti-corrosion properties of the coolant. Can cause serious issues to waterways if (when) the bag fails. Coolant should require shorter replacement intervals without the bag.

No "Mit Silikat" stamped on my coolant reservoir.  Just a book/manual icon and "G13" (for type of antifreeze).  Can't see anything resembling a bag inside the reservoir either.  Am assuming no silica bag then.

2018 Karoq SE L 1.5TSi.