Unusual

Son has a 1.0 Yaris and I have replaced the belt when 10 years old- little wear but some cracks.

Possible causes:

Belt too loose - it would have slipped when cold and you would have heard the screech.

Failed power steering - pump seized- heavy steering

Failed tensioner - in middle of belt run. Possible.

Failed alternator - you would have had warning lights before.

Failed water pump - overheating. Warning light and leaks.

Try turning all by hand. and note any stiffness or wobbles.

My money - in order - is one:

tensioner. water pump or alternator.

Or just wear and contaminated by oil - but they are very tough.

Changing is easy but you need to remove the engine mounting.. and jack up the engine .

I

Edited by madf on 29/11/2013 at 12:35