The expansion tank ensures that in case of high pressure, the air at the top of the system can be compressed. Therefore, topping up the fluid does not take place via the expansion tank, but via another tank whose filling opening is behind the number plate cover. To top up the coolant, it is not necessary to remove the engine cover (just like for refilling the engine oil).
This refill reservoir is delivered without a cap, you can buy it as an extra (see tab options).
This also applies to the hose clamp, this is a stepless ear clamp that cannot be reused.
Useful information from Paruzzi magazine and from our YouTube channel :
Look for more technical articles on the page Paruzzi Magazine