timing belt/chain yrv turbo


when should the timing chain/belt be changed on the turbo? Save me searching for the manual Smile

The turbo has a timing

The turbo has a timing chain, when I asked this question at the local Daihatsu servicing garage I was told it doesn't get changed as it's a chain and should last the lifetime of the car, unlike a belt made from rubber etc.. which will age and stretch.
Although saying that I was also told that the Autobox fluid is also a lifetime product as well.

'53' Plate Yellow YRV Turbo/ '53' Plate Black Subaru Impreza WRX STi PPP

'12' Plate Mazda MX-5 2.0 litre NC 3.5 Venture Roadster 160BHP
'15' Plate SEAT LEON 184 FR TDI. 240BHP/500nm Torque.
Past: '53' Plate Yellow YRV Turbo Approx. 150BHP