Would someone let me know , how to check the timing belt for wear on my 2016 Citigo.  It appears to have a plastic cover over the top of the belt, is it a simple job to remove the cover & have a good look at the belt, is it possible to turn the engine over in increments to fully check the full belt length.  

Yeah it's not difficult, without looking it up again:

 

Remove Air Filter to get better access

Fuel pipes unclip by lifting the bracket off the cover.

Undo the screw at the top and a clip front and back and cover lifts off.

 

You can use a spanner on the crank shaft pulley I think to turn the engine. I don't bother just have a look at condition each year but mine has only done 40k.

 

I'd make sure you keep everything clean, don't want to get any dirt or grease on the belt. Try not to touch or wear gloves etc.