See more from Ask Carzone 
When to change my Octavia's belt?
Driving a 2016 Skoda Octavia 1.6 TDI diesel. When does the timing belt require to be changed? also has a slight whistle sound what does this mean?
Our answer:
Hi Patrick,
The belt must be changed every 210,000km regardless of time.
As to the whistle, I'm afraid that's not an easy thing to assess from afar and we recommend that you ask a good mechanic to look at it.
Have a motoring question? Ask us here!
Ask us anything motoring related and please provide as much information as possible so we can give you the most accurate advice.