Toyota Belt Change Mileage

[WIL35]

For a Petrol 2003 Toyota Avensis Verso, at what mileage should the Timing Belt be changed? I think the engine type has ZZFE in the title!

Thanks

[WIL35]

My mistake, the engine number is actually 1AZ... But I just checked on that useful Wiki link and it is still a chain driven dohc.

thanks!