Skoda FABIA Owner's Manual page 204

When driving on wintry roads, snow chains improve not only traction, but also the
braking performance.
For technical reasons, it is only permissible to fit snow chains with the following
wheel/tyre combinations:
Wheel size
5J x 13
5J x 14
6J x 14
6J x 15
Only use fine-link snow chains. They must not project more than 9 mm -
including the chain lock.
Remove the full wheel trims before installing the snow chains.
Observe the national legal requirements relating to the use of snow chains and the
maximum vehicle speed with snow chains.
WARNING
Please pay attention to the information in the supplied fitting instructions of
the snow chain manufacturer.
Caution
You must take the chains off as soon as you drive on roads which are free of snow.
They adversely affect the handling of your vehicle, damage the tyres and are rapidly
destroyed.
Note
Only fit snow chains from the range of Škoda genuine accessories.
When driving with snow chains, switch off the traction control system (TCS).
Using the system Safety
Depth (D) Tyre size
35 mm 155/80
35 mm 165/70
37 mm 185/60
43 mm 185/55
Driving Tips General Maintenance Breakdown assistance
Wheels and Tyres 203
Technical Data