Octavia II RS TSI coolant level

Hello,

I am Pierre from France, I have a question about my Octavia RS (2015)  with 15000miles. because I think it's strange.

The first 10000miles le level has dropped. I have read it was ok because of air bubble in the system.

Last 2 years (2016 and 2017) I have monitored my level :

2016 :

From january to sept : ok,level does'nt drop

From sept to january : level drops

2017 : now I have 15000miles

From january to sept : ok,level does'nt drop

From sept to now : level drops (1500 miles, it drops almost 1.5cm)

It's incomprehensible. sometime, the level does'nt drops in 500 miles and sometime in 20 miles it drops by 0.3cm.

Have you ever heard about this?

Pierre

Edited 11 December, 20178 yr by fez3422